--- title: Klarity by DemandScience Reviews meta_title: 'Klarity by DemandScience Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 172 reviews by the users' company size, role or industry to find out how Klarity by DemandScience works for a business like yours. aggregate_rating: rating_value: 4.3 review_count: 172 scale: '5' date_modified: '2026-08-09' parent_category: name: Account-Based Data url: https://www.g2.com/categories/account-based-data --- # Klarity by DemandScience Reviews **Vendor:** DemandScience **Category:** [Marketing Account Intelligence Software](https://www.g2.com/categories/marketing-account-intelligence) **Average Rating:** 4.3/5.0 **Total Reviews:** 172 ## About Klarity by DemandScience DemandScience Audience Builder empowers B2B marketers with smarter data to define, refine, and activate target accounts with precision. Built on a verified global first-party data ecosystem of 247M+ contacts and 26M+ companies, it integrates firmographics, technographics, and intent signals so users can move beyond outdated static lists and build dynamic audiences that align with real buyer behavior. With this intelligence at your fingertips, Audience Builder helps you prioritize accounts showing real interest and engage them with the right message at the right time.  At its core, Audience Builder is designed to bring clarity to your Total Addressable Market (TAM) and Ideal Customer Profile (ICP). It provides tools to size your market accurately, continuously refine your ICP based on the traits of best-fit accounts, and uncover in-market signals that reveal where prospects are actively researching and evaluating solutions similar to yours. This layered insight ensures campaigns are grounded in verified reality—not assumptions—reducing wasted effort on irrelevant accounts.  The platform’s strength lies in its seamless list creation and refinement capabilities. Teams can build and optimize account lists in real time, combining firmographic, technographic, and behavioral intent criteria to construct audiences that reflect evolving buyer behavior. Lists can be exported directly into CRMs or marketing automation platforms, allowing sales and marketing teams to activate insights without friction. All data is backed by DemandScience’s Confirmed Connect™ validation, which guarantees quality and replaces records that don’t meet accuracy standards.  Audience Builder is ideal for ABM practitioners, demand gen leaders, sales teams, and any organization seeking to sharpen targeting, improve TAM/TAL accuracy, and prioritize outreach to high-potential accounts. Whether you’re struggling with unreliable data or looking to align segmentation with messaging across initiatives, it delivers a robust foundation for smarter targeting and more impactful engagement.  By anchoring audience decisions in verified data and real intent signals, DemandScience Audience Builder helps organizations build confidence in their targeting strategy, reduce wasted campaign spend, and drive measurable momentum throughout the demand generation funnel.  ## Klarity by DemandScience Reviews ### 1. Ease of use was excellent **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** January 14, 2020 **What do you like best about Klarity by DemandScience?** I liked the functionality of Leadiro. It had all of the capabilities we were looking for. **What do you dislike about Klarity by DemandScience?** Sometimes the filters weren't always in our interest. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Generating more leads for our sales and marketing department. ### 2. Great product! Well priced but database is not as complete as others **Rating:** 3.0/5.0 stars **Reviewed by:** Victor D. | Chief Revenue Officer, Mid-Market (51-1000 emp.) **Reviewed Date:** December 07, 2018 **What do you like best about Klarity by DemandScience?** There is lots of value here! For the price, it's hard to find any other solution that comes close. The interface is easy to use, very quick, and the ability to search based on tech install (for a small fee) is also a plus. With the validated e-mails, I found that the bounce rate was pretty low. Overall, I'd say that the value of the product is there. **What do you dislike about Klarity by DemandScience?** Unfortunately, the database seems quite a bit smaller than for other products that we've used, like ZoomInfo. ZoomInfo also gave the ability to easily search within companies, while with Leadiro you're pretty much limited to batch searches/downloads of records. **Recommendations to others considering Klarity by DemandScience:** Give it a try as a supplemental data source for your marketing campaigns. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We needed another data source in our marketing stack for cold outreach campaigns in the USA. ROI of Leadiro is fairly easy to prove/achieve since the product is priced well. ### 3. Quick route to our market **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** October 07, 2019 **What do you like best about Klarity by DemandScience?** Leadiro has been a key part in all of our campaigns as it helps us to access the exact job roles that we need to be speaking to. **What do you dislike about Klarity by DemandScience?** There could possibly be more filters as it can be a bit fiddly having to go through and deselect the job titles that have been pulled into the search but that aren't quite right. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Leadiro has meant that we have a validated database to send campaigns to. ### 4. Very supportive **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Computer Software | Mid-Market (51-1000 emp.) **Reviewed Date:** October 04, 2019 **What do you like best about Klarity by DemandScience?** Account manager support has been very useful and very responsive **What do you dislike about Klarity by DemandScience?** search functionality at times for specific job title **Recommendations to others considering Klarity by DemandScience:** keep up the good work **What problems is Klarity by DemandScience solving and how is that benefiting you?** Lead generation and GDPR compliant data ### 5. Good tool for finding email id's of prospects **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** September 07, 2019 **What do you like best about Klarity by DemandScience?** 1. attractive pricing. 2. Free version is there with limited contacts. 3.Sufficient number of contacts. 4. Many filters for searching 5. Customer Support is very good and reliable. **What do you dislike about Klarity by DemandScience?** 1. The search feature is a little time consuming at times. 2. The accuracy is good but can be improved. **Recommendations to others considering Klarity by DemandScience:** Good software to find contact details of prospects but some things can be improved. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Contact details of sales prospects. Have used the paid plan for 2-3 months. ### 6. A great service for volume prospecting **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Small-Business (50 or fewer emp.) **Reviewed Date:** May 01, 2019 **What do you like best about Klarity by DemandScience?** The efficency to produce massive lists of contacts **What do you dislike about Klarity by DemandScience?** Simply due to the nature of the service, a significant number of the contacts are no long valid. Either the emails no longer work or the person has simply left the company. That said, with a high enough volume of contacts, you can still produce a sizeable number of working targets. **Recommendations to others considering Klarity by DemandScience:** This is a great tool if you are working with high volumes of contacts. **What problems is Klarity by DemandScience solving and how is that benefiting you?** I was looking to obtain email address for potential clients or at the very least, understand how their company's email addresses are structured. ### 7. Great Data - Perfect for my Sales Team!! **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Human Resources | Mid-Market (51-1000 emp.) **Reviewed Date:** April 25, 2019 **What do you like best about Klarity by DemandScience?** I have tried many similar platforms, however Leadiro has provided the best quality data, and generates the best conversion rates for myself and my sales team. Could not do without it! **What do you dislike about Klarity by DemandScience?** It is more expensive than I would like. I was also dissappointed when I reached at to the CEO of the company on Linkedin to ask a couple of questions and propose a business opportunity, and he totally ignored it. A simple response would have gone a long way for a customer paying his business money! **Recommendations to others considering Klarity by DemandScience:** Give it a go **What problems is Klarity by DemandScience solving and how is that benefiting you?** Getting the right contacts at the right time ### 8. Need targeted marketing - You need Leadiro **Rating:** 4.0/5.0 stars **Reviewed by:** Sadiq Q. | Vice President of Customer Success, Small-Business (50 or fewer emp.) **Reviewed Date:** April 24, 2019 **What do you like best about Klarity by DemandScience?** Creating multiple search criteria and narrowing down to what is relevant to for target audience **What do you dislike about Klarity by DemandScience?** Not being able to drill down into the search results without actually downloading and purchasing the leads **Recommendations to others considering Klarity by DemandScience:** Ben clear what you want from a business development tool.....makes things a lot easier **What problems is Klarity by DemandScience solving and how is that benefiting you?** Targeted messaging to multiple audiences to build the prospect funnel ### 9. So far so good experience **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Outsourcing/Offshoring | Enterprise (> 1000 emp.) **Reviewed Date:** October 09, 2019 **What do you like best about Klarity by DemandScience?** The UI provided by the Leadiro is very user friendly and easy to understand. Data quality is as per expectations. **What do you dislike about Klarity by DemandScience?** Leadiro do not provide filter for revenue and SIC code which is a downside **What problems is Klarity by DemandScience solving and how is that benefiting you?** Leadiro has improved the connects rate and manual efforts have decreased ### 10. A must for business development **Rating:** 4.0/5.0 stars **Reviewed by:** Sadiq Q. | Director, Small-Business (50 or fewer emp.) **Reviewed Date:** May 03, 2019 **What do you like best about Klarity by DemandScience?** The fact that we could create searches that drilled down to the focussed assistance we wanted to target. **What do you dislike about Klarity by DemandScience?** Not possible to have a flexible payment plan that increased and reduced as and when we required. **Recommendations to others considering Klarity by DemandScience:** Define your target audience and have targeted messaging to them **What problems is Klarity by DemandScience solving and how is that benefiting you?** Creating good leads ### 11. Deep level of contact names **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Mid-Market (51-1000 emp.) **Reviewed Date:** September 25, 2019 **What do you like best about Klarity by DemandScience?** I like the variety of search criteria available and the ease of sorting results. **What do you dislike about Klarity by DemandScience?** Downloading list of names and saving to local computer to view names, doesn't offer many direct numbers **Recommendations to others considering Klarity by DemandScience:** Leadiro is a great source for finding the go to person. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Finding contacts ### 12. Leadiro Review **Rating:** 5.0/5.0 stars **Reviewed by:** Sonny J. R. | Owner, Small-Business (50 or fewer emp.) **Reviewed Date:** April 17, 2019 **What do you like best about Klarity by DemandScience?** Simple to use.....platform is user friendly **What do you dislike about Klarity by DemandScience?** I don't know if there was anything that I didn't dislike? My problem is I didn't use it as much as I had hoped **What problems is Klarity by DemandScience solving and how is that benefiting you?** Identifying professional prospects/targets ### 13. Great source of leads for SaaS sales **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** May 01, 2019 **What do you like best about Klarity by DemandScience?** Easiness to search for relevant leads for saas. A lot of data for companies in my field. **What do you dislike about Klarity by DemandScience?** Even though its better than the market standards but still high bounce rate. They need more data outside the United States. **Recommendations to others considering Klarity by DemandScience:** Depending on the industry, it can be a great tool to improve email marketing. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Faster lead generation. We are focusing our email marketing to leadiro lists. ### 14. Better than expected, cheaper than expected **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Construction | Enterprise (> 1000 emp.) **Reviewed Date:** October 09, 2019 **What do you like best about Klarity by DemandScience?** Bankable credits moving forward monthly are a great feature **What do you dislike about Klarity by DemandScience?** Nothing yet, everything has worked as promised **What problems is Klarity by DemandScience solving and how is that benefiting you?** Inexpensive access to C-Suite prospects ### 15. Simple lead source **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Computer Software | Mid-Market (51-1000 emp.) **Reviewed Date:** June 05, 2019 **What do you like best about Klarity by DemandScience?** Ease of use - Very easy to get lots of data quickly on industry specific leads **What do you dislike about Klarity by DemandScience?** The bounce rate can be quite high - lists don't seem to be updated often **Recommendations to others considering Klarity by DemandScience:** it's a good source of data for extra pipe - I would advise against using this as yopur sole/main data source, as contacts aren't always up to day and it isn't frequently updated **What problems is Klarity by DemandScience solving and how is that benefiting you?** we use the data for sequencing a large volume of contacts over a short period of time ### 16. Excellent source of relevant validated B2B email addresses **Rating:** 5.0/5.0 stars **Reviewed by:** Peter A. | Small-Business (50 or fewer emp.) **Reviewed Date:** August 17, 2018 **What do you like best about Klarity by DemandScience?** Leadiro has a large database of B2B contacts and an easy to use filtering system to identify suitable targets. I chose to use it after confirming that it included certain known individuals and was pleasantly surprised by the pricing, ease of use and GDPR related support. **What do you dislike about Klarity by DemandScience?** Nothing - even more names would be better but many of our target do not put their emails in the public domain. **Recommendations to others considering Klarity by DemandScience:** Do as I did - try it out and confirm it includes names you know. If so, the reasonable assumption is that it also has names of targets that you dont currently know, The fact that the data is GDPR compliant means that its a great way to build your database for email marketing. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We used Leadiro to supplement our email list for a promotional newsletter we send out and got a good number of new leads from their names. ### 17. Good option for the lead generation activations **Rating:** 5.0/5.0 stars **Reviewed by:** Belter P. | Gerente de Proyectos de VMware Demand Center, Enterprise (> 1000 emp.) **Reviewed Date:** December 14, 2018 **What do you like best about Klarity by DemandScience?** This tool is pretty useful for those who need to be constanly adding and incresing their marketing list in an acurate way in order to complish the regulations and legal terms in different countries. **What do you dislike about Klarity by DemandScience?** There are some limitations for most of the countries in LAC (Latin America and Caribbean) territory, being limited to some contacts, the good thing is Leadiro is constantly adding more data to their lists. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Increase contacts in the current companies with contact for marketing and sales activities resulting in more engage relationship with those accounts. ### 18. Great for data at scale **Rating:** 4.0/5.0 stars **Reviewed by:** Charles S. | Director, Demand Generation and Digital Marketing, Mid-Market (51-1000 emp.) **Reviewed Date:** December 06, 2018 **What do you like best about Klarity by DemandScience?** We get a lot of volume from here and it is super easy to use for the price. I highly recommend this to any company looking to target at scale. **What do you dislike about Klarity by DemandScience?** State filters sometime get messed up and dont work and although I totally expect it for the price, the phone numbers are mostly corporate lines and there are quite a few emails that bounce that I pull out of here. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Demand generation. We get a lot more volume at a cheaper rate then more well known competitors. ### 19. Waymark IT **Rating:** 2.5/5.0 stars **Reviewed by:** Verified User in Computer Software | Small-Business (50 or fewer emp.) **Reviewed Date:** December 11, 2018 **What do you like best about Klarity by DemandScience?** Easy to sign up and use, initially. Implementation team and sales were quick to repsond to questions. **What do you dislike about Klarity by DemandScience?** Filters are poor. number of UK business covered very small percentage of overall businesses. At the time of joining only 32,000 unique businesses were available. **Recommendations to others considering Klarity by DemandScience:** In the UK the company base is not very large and is only within a few business industries. If your target market is one of those then it could suit a purpose, however you could quicly run out of use after a few months as you work your way through the companies that are available. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Lead volume for marketing purposes. Benefits, still evaluating ### 20. Good Tool For Lead Emails **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Health, Wellness and Fitness | Small-Business (50 or fewer emp.) **Reviewed Date:** June 21, 2019 **What do you like best about Klarity by DemandScience?** I like the fact that leadiro can provide me with leads I would be unable to obtain on my own. **What do you dislike about Klarity by DemandScience?** Although the emails are all "verified". Many do no go through. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Finding emails for qualified leads. I have had many call backs from emails I have use. ### 21. Excellent Product - Short Learning Curve - Great Value **Rating:** 4.0/5.0 stars **Reviewed by:** Michael N. | Managing Director, Mid-Market (51-1000 emp.) **Reviewed Date:** December 06, 2018 **What do you like best about Klarity by DemandScience?** The customer service and the ease of use have been exemplary. **What do you dislike about Klarity by DemandScience?** I wouldn't call it a dislike but some of the search is not as intuitive as I would like... For example, the US state input is only as a two-letter code but a good deal of the data is stored as full state name. I'm not sure if this impacts search results or not. **Recommendations to others considering Klarity by DemandScience:** As affordable as this solution is, I would highly recommend a "live" experience. Give it a try! **What problems is Klarity by DemandScience solving and how is that benefiting you?** Business lead prospecting. We use it to determine contact points within companies that have identified as potential clients. ### 22. Solid List Source for Business Development **Rating:** 4.5/5.0 stars **Reviewed by:** Nathaniel C. | Chief Operating Officer, Computer Hardware, Small-Business (50 or fewer emp.) **Reviewed Date:** September 25, 2018 **What do you like best about Klarity by DemandScience?** Leadiro seems to have the most flexible pricing model for high quality lists. No long term commits is nice and the list quality is up to date. **What do you dislike about Klarity by DemandScience?** I once tried to download a list that was going to charge a little extra for technology targeting. Not a huge deal, but it deterred me from downloading that particular list. **Recommendations to others considering Klarity by DemandScience:** Try it, there is no long term subscription. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Trying to find high quality potential customers to reach out to with our business development efforts. ### 23. Solid lead database **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Mid-Market (51-1000 emp.) **Reviewed Date:** February 16, 2019 **What do you like best about Klarity by DemandScience?** The simplicity of platform: you pay a fixed monthly fee for a fixed number of exports. They provide refunds on bounced contacts and do not charge you for duplicate exports. **What do you dislike about Klarity by DemandScience?** As always with these services, there is a margin for error when it comes to contact quality. You will see a bounce rate of at least 5%. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We needed contacts for outbound email marketing strategies. The fixed number of monthly contacts allowed us to plan our outreach and understand how we could scale over time. ### 24. ImageThink & Leadiro **Rating:** 4.5/5.0 stars **Reviewed by:** Maria D. | Manager of Finance, Small-Business (50 or fewer emp.) **Reviewed Date:** December 11, 2018 **What do you like best about Klarity by DemandScience?** The ease in which you can select/filter the lists by industry, geography, job title, etc. I also like that your credits roll over if you don't use them that month. **What do you dislike about Klarity by DemandScience?** I can't think of anything - perhaps making it available to integrate with more platforms. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We're conducting much more targeted marketing efforts, and Leadiro helps us by the filters available that I mentioned in what I like best. The benefit has been more qualified leads. ### 25. Great for growing teams! **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** December 06, 2018 **What do you like best about Klarity by DemandScience?** The contacts/dollar is great - having thousands of people to reach out to over email, while not breaking the bank is ideal for our team. **What do you dislike about Klarity by DemandScience?** Most phone numbers are for general lines at the company. Probably not the best resource for cold callers to rely on. **Recommendations to others considering Klarity by DemandScience:** Make sure your industry is friendly to cold emails - my last company was using leadiro and it wasn't nearly as successful. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We're a growing company in a big industry, being able to have a scalable method to get in touch with industry contacts is hard. By using Leadiro, we have a place to go to when looking for new leads. ### 26. Good Scaleable Data Procurement Option **Rating:** 3.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** December 11, 2018 **What do you like best about Klarity by DemandScience?** The PAYG model of data acquisition is great - there are also good contacts across a wide geographical area. **What do you dislike about Klarity by DemandScience?** The search functionality is less than ideal - It's difficult to really build complex boolean filters (ie. where job title includes "a" and "b" but not "c". **What problems is Klarity by DemandScience solving and how is that benefiting you?** As a campaign-by-campaign data tool, Leadiro works well, the ability to roll over unused contact quota is great for our needs. ### 27. Does an alright job **Rating:** 1.5/5.0 stars **Reviewed by:** Caleb F. | CEO, Small-Business (50 or fewer emp.) **Reviewed Date:** December 07, 2018 **What do you like best about Klarity by DemandScience?** It generates some good leads. Mostly used it for looking for niche job titles. **What do you dislike about Klarity by DemandScience?** The biggest issue has been canceling the service. I continue to get charged for the service but even after I tried to cancel the service I continued to get charge and was not refunded what I was charged. **Recommendations to others considering Klarity by DemandScience:** Good luck with customer service **What problems is Klarity by DemandScience solving and how is that benefiting you?** Prospects for cold e-mailing. ### 28. Leadiro Expert **Rating:** 4.5/5.0 stars **Reviewed by:** Andy S. | Co-Founder | Product Lead | Head of Growth, Small-Business (50 or fewer emp.) **Reviewed Date:** November 27, 2018 **What do you like best about Klarity by DemandScience?** I love the HubSpot integration and ability to filter contacts that have been validated within the past 30 days. **What do you dislike about Klarity by DemandScience?** I'd love more personalized phone numbers (vs. generic numbers) and smaller businesses. **Recommendations to others considering Klarity by DemandScience:** Give it a test drive - you'll like the product. It's very easy to use. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We're a startup and need leads for select companies. We've pulled and sent thousands of emails with great success. ### 29. Useless **Rating:** 0.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** December 11, 2018 **What do you like best about Klarity by DemandScience?** Ease of use of the platform. The content of the database, such as it is, can be easily navigated and selected. **What do you dislike about Klarity by DemandScience?** Accuracy is poor.. The information is OLD . The company names have changed. The contacts are often no longer employed. The telephone numbers are usually wrong. E-mail domains do not match Company listed. There is more but you get the idea. **Recommendations to others considering Klarity by DemandScience:** I have no recommendation **What problems is Klarity by DemandScience solving and how is that benefiting you?** So far no benefits . Is an inaccurate database better than no database? Perhaps the e-mails may trigger a mailing that reaches somebody. ### 30. Helpful platform for outbound campaigns **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Outsourcing/Offshoring | Mid-Market (51-1000 emp.) **Reviewed Date:** September 10, 2018 **What do you like best about Klarity by DemandScience?** Leadiro solves the hardest part of an outbound campaign - the listbuilding. Great segmentation options so you can get quite narrow audiences to match specific campaigns. Generally low bounce rate and accurate data. **What do you dislike about Klarity by DemandScience?** Filtering wasn't foolproof - can't just bulk enroll contacts in an outbound sequence. Still needs to be manually checked and vetted. **Recommendations to others considering Klarity by DemandScience:** We paired this with Hubspot so we could enroll contacts in an automated outbound email sequence - really efficient way to run a campaign. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Outbound campaigns - lead generation ### 31. An essential tool for any Business Development Executive. **Rating:** 5.0/5.0 stars **Reviewed by:** Cathy M. | Connected Retail Technology, Information Technology and Services, Mid-Market (51-1000 emp.) **Reviewed Date:** December 20, 2017 **What do you like best about Klarity by DemandScience?** The platform is very user friendly, there are plenty of filter options available to the end user allowing you to create an accurate powerful data base instantly. After a couple of clicks I have direct access to the correct people in my target industry. Have the correct contact detail is the powerful tool any Business Development can have. Leadiro gives me the power to call or email the correct individual within a company within minutes of logging on. The data is so accurate and the online support is real time and very helpful. I would have no problem in recommending Leadiro to any company. **What do you dislike about Klarity by DemandScience?** Still hasn't the functionality to integrate with all CRM systems which duplicates work as I have to separately upload to our Dynamics which did take up some time, but not much of a complaint given oh accurate the data is ! **Recommendations to others considering Klarity by DemandScience:** Leadiro gives you the ability to search for companies within a certain geographical area saving you time trawling through Google, LinkedIn etc . Ability to get started with minimal training. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Leadiro gives you the ability to search for companies within a certain geographical area saving you time trawling through Google, LinkedIn etc . Ability to get started with minimal training. Leadiro helps us connect to potential clients and saves us time searching for their correct contact information. This platform eliminates the frustration that one has to deal with when they don't have accurate data. ### 32. Absolutely satisfied **Rating:** 5.0/5.0 stars **Reviewed by:** Daniel B. | Mid-Market (51-1000 emp.) **Reviewed Date:** July 10, 2018 **What do you like best about Klarity by DemandScience?** Really user-friendly application. Functions, mainly related to filtering, are absolutely convenient to find and use. I requested a personal demo, which was provided and convinced me to subscribe. The application reflected the promised features. 99% of downloaded contacts were working. **What do you dislike about Klarity by DemandScience?** Distribution of available contracts is really scewed to the right. High number of contacts sometimes not necessarily reflect high number of available companies. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We launched a cold email campaign, telling prospects about our new service. We needed CEO, CTO, IT director / manager contacts to send the mails to. We managed to send out the mass emails, based on Leadiro contact exports. Most of the contacts were working. ### 33. Brilliant for outbound prospecting **Rating:** 5.0/5.0 stars **Reviewed by:** David H. | Sales Account Manager, Marketing and Advertising, Small-Business (50 or fewer emp.) **Reviewed Date:** January 29, 2018 **What do you like best about Klarity by DemandScience?** Leadiro is one of the best data platforms I’ve come across and used in a long time – straight forward and very easy to use. For anyone in Sales and Business Development, it’s important to have access to accurate prospect information and with Leadiro, you get it spades. The filter functionality makes it easy to segment and slice to find the prospects that you really need to target in certain regions and market sectors. Very impressed with the quality of the data and it’s all very reasonably priced. The Technology Install and Intent filters are impressive additions allowing you can search for certain areas of interest or whether they are using certain types of technology’s. **What do you dislike about Klarity by DemandScience?** There’s nothing much to dislike if I’m honest as it ticks all of the right boxes that I’m looking for in a data provider to help with all of our outbound prospecting – easy to use filters, vast data coverage in terms of functions, sectors & regions featured and up-to-date contact information. **Recommendations to others considering Klarity by DemandScience:** I would highly recommend using Leadiro for all data needs. Very reasonable price wise for a very extensive pool of contacts globally. I’m finding the ABM feature a huge help to be able to zone in on key target accounts. You can choose from monthly recurring plans which I find very convenient so you’re not tied into a yearly contract. If I’ve needed any help with anything or had any questions, the support team has been excellent and they have been very quick to reply and help. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Cold outbound prospecting can be time consuming and a lot of hard work trying to source the right people in the right companies – this takes up majority of a sales person’s time and effort. With Leadiro, our sales team has been able to be a lot more effective by being able to spend all of their time targeting and speaking to the right people and we can be confident that the contact information of those prospects is accurate. Also, using the Technology Install and Intent features, we can run very niche and specific programs that also allow us to be very targeted. In today’s world, data is the new gold and Leadiro has proved themselves to be very valuable resource and partner for us. ### 34. Leadiro review **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Legal Services | Small-Business (50 or fewer emp.) **Reviewed Date:** January 07, 2019 **What do you like best about Klarity by DemandScience?** Very user-friendly system. Contract is straightforward. The team are helpful and lots of online resources. **What do you dislike about Klarity by DemandScience?** No real issues to report except at first I was including previously licenced data in my exports which I think you should opt in to rather than out of! **Recommendations to others considering Klarity by DemandScience:** do it! **What problems is Klarity by DemandScience solving and how is that benefiting you?** Source of sales leads ### 35. Good but can be better **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Market Research | Mid-Market (51-1000 emp.) **Reviewed Date:** August 24, 2018 **What do you like best about Klarity by DemandScience?** easy to use, and database is up to date. **What do you dislike about Klarity by DemandScience?** The database is not large enough. Sometimes I cannot find any contacts in some companies. Also there are not a lot direct dial available. **Recommendations to others considering Klarity by DemandScience:** Leadiro has a good coverage for US and EU markets **What problems is Klarity by DemandScience solving and how is that benefiting you?** We are a market research company. We get in touch people in different line of business and invite them to take part in surveys. The database helps us to find right respondents easier. ### 36. Best bang for the buck B2B data tool on the market **Rating:** 4.5/5.0 stars **Reviewed by:** Jason Y. | BI Biz Dev, Computer Software, Small-Business (50 or fewer emp.) **Reviewed Date:** June 11, 2018 **What do you like best about Klarity by DemandScience?** I've tried several data tools, and Leadiro's data is the most accurate that I could find. Also, in terms of needing to fly through a tool and learn it quickly, Leadiro has the best UX & UI. **What do you dislike about Klarity by DemandScience?** Sometimes they don't have the specific keywords that I want to search for. **Recommendations to others considering Klarity by DemandScience:** If you're not happy with the tool, they fix it. Love the team! **What problems is Klarity by DemandScience solving and how is that benefiting you?** We use Leadiro for all of our outbound sales campaigns. ### 37. List Building - Prospecting **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Human Resources | Small-Business (50 or fewer emp.) **Reviewed Date:** September 24, 2018 **What do you like best about Klarity by DemandScience?** Filtering was very granular and intuitive to use Customer support was excellent Price per lead and monthly plans are competitive Bounceback on emails was within the manageable limit Had Linkedin URLs for each contact **What do you dislike about Klarity by DemandScience?** None really for the price and the fact you can cancel at any time it worth testing at the very least. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Lead generation ### 38. Good Service **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Mid-Market (51-1000 emp.) **Reviewed Date:** December 20, 2018 **What do you like best about Klarity by DemandScience?** It was amazing how we could access the database and have it downloaded in an appropriate manner **What do you dislike about Klarity by DemandScience?** More access to the profiles and more quantity was much expected than provided **Recommendations to others considering Klarity by DemandScience:** Take this positively **What problems is Klarity by DemandScience solving and how is that benefiting you?** Basically we have been helped by getting a good amount of database that has been utilized internally. ### 39. Great tool **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** December 18, 2018 **What do you like best about Klarity by DemandScience?** Great range of data, and easy to use tool **What do you dislike about Klarity by DemandScience?** The UI takes a bit of time to get your head around but otherwise great **What problems is Klarity by DemandScience solving and how is that benefiting you?** Leadiro is helping us build our prospect pipeline, giving us some solid information to work with and genuinely strong contacts ### 40. Just a few minor niggles **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Legal Services | Small-Business (50 or fewer emp.) **Reviewed Date:** December 06, 2018 **What do you like best about Klarity by DemandScience?** Easy to search and use, happy so far! cccc **What do you dislike about Klarity by DemandScience?** It defaults to adding previously purchased contacts so I often have to dedupe lists Says some emails are not Leadiro data yet that's all we are using so they definitely are! **What problems is Klarity by DemandScience solving and how is that benefiting you?** BD Found many new contacts ### 41. I used Leadiro since 2017. **Rating:** 4.5/5.0 stars **Reviewed by:** Bruno B. | Sales Manager, Internet, Mid-Market (51-1000 emp.) **Reviewed Date:** July 17, 2018 **What do you like best about Klarity by DemandScience?** For me the mainly features Leadiro this quality os informations and the UI. I think one the best software take leads. **What do you dislike about Klarity by DemandScience?** I need lead from Brazil and there ins't a lot of company in plataform. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Source of Leads ### 42. Great platform, just needs better data **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Computer & Network Security | Mid-Market (51-1000 emp.) **Reviewed Date:** August 23, 2018 **What do you like best about Klarity by DemandScience?** The functionalities behind finding what you wanted to find. Not to mention, customer service and response rate is fantastic! **What do you dislike about Klarity by DemandScience?** The quality and quantity of data. We ran every single email through an email verifier. We only received a 40% success rate. Along with that, you can imagine, how quickly we would run through our target audience. **Recommendations to others considering Klarity by DemandScience:** Understand the true amount of contacts that you need. Take Leadiro's quota and divide it by half. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Lead generation. Leadiro provides our company with contacts to expand our reach and penetrate into new geographical markets. ### 43. Quality data and easy to manage! **Rating:** 5.0/5.0 stars **Reviewed by:** Phil D. | Mid-Market (51-1000 emp.) **Reviewed Date:** January 31, 2018 **What do you like best about Klarity by DemandScience?** The Leadiro platform is incredible simple to use and offers great flexibility and filtering. We can take contacts based on location, industry and job title (or a combination of all three) with ease and receive accurate counts in seconds. The huge range of filtering options has meant we can create very focused data sets that receive communications tailored to them. Another feature that is hugely helpful is the Account based marketing lists. These allow for direct targeting of key companies and accounts. Implementation and visibility of these lists is as simple as performing a regular search. Their customer service is always superb. Very easily accessible and alway on hand to assist, be it with a platform query or a more bespoke request. **What do you dislike about Klarity by DemandScience?** A very trivial thing, but when searching for contacts by US State it is required that you know the state code (NY, TX etc). I think a dropdown or tick-box selection of the codes with state name would make US searches slightly easier for people like myself who aren't completely sure on state codes. Other than that i don't dislike anything about Leadiro. **Recommendations to others considering Klarity by DemandScience:** Check out the portal and see how everything works. The Leadiro team are hugely helpful and back up the impressive nature of the portal with their knowledge and professional nature. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We utilise Leadiro's portal and data for a variety of clients, this means we can provide up to date and relevant contacts to our customers and in return they see leads responding to their marketing campaigns with readily available information on each contact ### 44. Leadiro Fan **Rating:** 5.0/5.0 stars **Reviewed by:** John S. | Owner | Consultant | Digital Marketing, Marketing and Advertising, Small-Business (50 or fewer emp.) **Reviewed Date:** March 01, 2018 **What do you like best about Klarity by DemandScience?** Leadiro has great quality lists that I've found have very high deliverability rates--at a really great cost. I've needed to get in touch with their team every now and then over the 8-9 months that I've been a customer and they have been very helpful every time. **What do you dislike about Klarity by DemandScience?** Nothing so far. There have been a few questions I've had, but customer service was always quick to answer them helpfully. **Recommendations to others considering Klarity by DemandScience:** Certainly worth giving a try. **What problems is Klarity by DemandScience solving and how is that benefiting you?** For email marketing I need high quality lists at a reasonable cost. Both of these things have been beneficial about Leadiro. ### 45. Great experience **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Logistics and Supply Chain | Small-Business (50 or fewer emp.) **Reviewed Date:** December 10, 2018 **What do you like best about Klarity by DemandScience?** It's a user friendly platform and easy to meanuver around and locate the leads that we want **What do you dislike about Klarity by DemandScience?** Needs more leads and better search criteria **What problems is Klarity by DemandScience solving and how is that benefiting you?** lead generation; more sales ### 46. Thousands of top contacts **Rating:** 5.0/5.0 stars **Reviewed by:** Kerry W. | Small-Business (50 or fewer emp.) **Reviewed Date:** January 10, 2018 **What do you like best about Klarity by DemandScience?** I love Leadiro as it is so accurate when searching for your prospect. **What do you dislike about Klarity by DemandScience?** I would say they only thing I can think of that I don't like it you can only scroll the first page of contacts before you download them. If I could see all the contacts before downloading it would enable me to refine my search a bit more. I have downloaded irrelevant contacts because of this. **What problems is Klarity by DemandScience solving and how is that benefiting you?** I am using Leadiro to maximise my database and to email potential prospects in my Niche. It is so accurate and such a powerful tool. I don't have to spend hours adding contacts on to my CRM one by one. The time I have saved is invaluable. ### 47. Great Prospecting Tool **Rating:** 5.0/5.0 stars **Reviewed by:** Rachel H. | Email Marketing Executive, Marketing and Advertising, Mid-Market (51-1000 emp.) **Reviewed Date:** January 05, 2018 **What do you like best about Klarity by DemandScience?** The UI is very easy to use. I am extremely impressed with the speed that it processes searches. The data quality is also excellent and easy to segment. **What do you dislike about Klarity by DemandScience?** It would be great if more contacts could be pulled out of the system at one time. **Recommendations to others considering Klarity by DemandScience:** This is a great value tool. The service is very flexible and we can get access to a high quality data contact pool that we were really lacking previously. Even if you are using another vendor I would highly recommend giving Leadiro a try as it's low risk given there is no 12 month contract lock-ins. **What problems is Klarity by DemandScience solving and how is that benefiting you?** Access to great data. The segmentation features really help us deliver on campaigns. ### 48. Good, not great **Rating:** 3.0/5.0 stars **Reviewed by:** Matthew Z. | Director of Marketing, Marketing and Advertising, Small-Business (50 or fewer emp.) **Reviewed Date:** October 03, 2017 **What do you like best about Klarity by DemandScience?** The platform is easy to use. They make it simple to search for contacts and verticals that you're looking for. There also seems to be an endless amount of companies in their database as well as several different job functions to choose from, so whether you're selling to marketing, IT, or management, you're going to be covered. **What do you dislike about Klarity by DemandScience?** The data is often outdated. This is a major problem if you're planning to do any cold calling/email marketing. I expect there's some way to report these to Leadiro and get credits back, but I'm still compiling my list of bounces/wrong numbers/left the company contacts. **Recommendations to others considering Klarity by DemandScience:** I would reccommend that you buy this only if you're willing to append a lot of the data with a different service or in house team. Also, do your research. There are a lot of solutions similar to Leadiro, but few of which come at this low of a pricepoint - but they do have better data. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We get info on target customers for our ABM campaigns. It has made it easy for us to quickly scale an SDR team without having to rely solely on inbound leads. ### 49. Excellent, easy -to-use database platform **Rating:** 5.0/5.0 stars **Reviewed by:** Sam W. | Business Development Director, Mechanical or Industrial Engineering, Mid-Market (51-1000 emp.) **Reviewed Date:** January 02, 2018 **What do you like best about Klarity by DemandScience?** Very simple to navigate and use. Applying filters so to narrow down to your preferred choice of contacts is very quick and easy too. **What do you dislike about Klarity by DemandScience?** We found a small amount of the the data to be out of date but that is no different to any other database services. **Recommendations to others considering Klarity by DemandScience:** If you want the most up-to-date data available with an Unrivalled ease of use then Leadiro is the best platform i have come across. **What problems is Klarity by DemandScience solving and how is that benefiting you?** We have managed to source initial points of contact in certain organisations which we had previously always struggled to source ourselves. These initial points of contact have steered us towards the decision makers, correspondence with which has proved invaluable. ### 50. High-quality and accurate business contacts **Rating:** 5.0/5.0 stars **Reviewed by:** Rachel C. | Business Development Manager, Information Technology and Services, Small-Business (50 or fewer emp.) **Reviewed Date:** December 08, 2017 **What do you like best about Klarity by DemandScience?** User friendly- It is very easy to naviagte to find the contact your are looking for and to add or remove contacts to your basket. The simplicity of the various filters by job titel, level, industry country was very helpful . It is so fast and the payments are easy to manage .The process was very quick and efficient and thank you to team Leadiro. **What do you dislike about Klarity by DemandScience?** Nothing, I would highly recommend Leadiro to any sales or marketing teams. **Recommendations to others considering Klarity by DemandScience:** In our experience the data is very up to date ; we will therefore have no hesitation in recommending Leadiro for your direct marketing campaigns.As good data is one of the most fundamental elements of a successful campaign, I would rely time and time again on the Leadiro team. **What problems is Klarity by DemandScience solving and how is that benefiting you?** This is saving me time building out my own database. They are the relevant contacts and they are maintained and updated constantly. ## Klarity by DemandScience Discussions - [Do I need a credit card to sign up?](https://www.g2.com/discussions/sign-up-618830a5-34b6-407c-ad67-f257b99a572e) - 2 comments, 1 upvote - [Can I pay for just one month rather than a monthly subscription?](https://www.g2.com/discussions/payment-plan) - 1 comment, 1 upvote - [Can I upgrade my plan at any time?](https://www.g2.com/discussions/upgrades-94e9e6e3-7bfc-4805-b0e7-ab53cb97df09) - 1 comment, 1 upvote - [Do unused contacts roll over to the next month?](https://www.g2.com/discussions/unused-quota) - 1 comment, 1 upvote - [Am I locked into a 12 month contract?](https://www.g2.com/discussions/contract-5df4e869-4dd0-47a0-afa1-8a05f427a9c2) - 1 comment, 1 upvote - [View Klarity by DemandScience pricing details and edition comparison](https://www.g2.com/products/demandscience-klarity-by-demandscience/reviews?page=3§ion=pricing&secure%5Bexpires_at%5D=2026-08-09+05%3A41%3A37+-0500&secure%5Bsession_id%5D=1d81f356-e0a2-46ba-b559-7482cd782a7c&secure%5Btoken%5D=5b13acc6eed540c12c26c66923596f062d918a6613c9e9302beb2eda57d1fbe4&format=llm_user) ## Klarity by DemandScience Features **Additional Functionality** - Calendar Sync - CRM - Conversation Intelligence - Lead Qualification - Strategic Planning - Customizable Reports - Visual Analytics - Customer Profiles - Activity Tracking - Alerts/Notifications - Contact Database - Lead Scoring - Data Import/Export - Data Cleansing - Prospecting Tools - Sentiment Analysis - Multi-Channel Data Collection - AI Copilot - Dashboard Creation - Engagement Tracking - Generative AI - Lead Generation - Interaction Tracking - Predictive Analytics - Customizable Templates - Collaboration Tools - For Sales Teams/Organizations **Data Availability** - Contact Data Availability - Company Data Availability - Industry Research Availability - Technographic Data Availability **Lead Generation** - Lead Builder - CRM Integration - Marketing Automation Integration - Data Import & Export Tools **Lead Intelligence** - Lead Enrichment - Lead Quality - Lead Analysis - Browser Extension **Agentic AI - Lead Mining** - Cross-system Integration - Proactive Assistance **Agentic AI - Marketing Account Intelligence** - Autonomous Task Execution - Cross-system Integration - Adaptive Learning - Natural Language Interaction **Data Accuracy** - Contact Data Accuracy - Company Data Accuracy - Technographic Data Accuracy **Lead Intelligence** - Account-level Insights **Agentic AI - Lead Intelligence** - Cross-system Integration **Lead Management** - Segmentation - Account Identification **Agentic AI - Sales Intelligence** - Autonomous Task Execution - Cross-system Integration - Adaptive Learning - Natural Language Interaction - Proactive Assistance - Decision Making - AI/Machine Learning - Third-Party Integrations - Calendar/Reminder System **Platform** - Internationalization - User, Role, and Access Management - Performance and Reliability - Reporting/Dashboards - APIs - Deal Management - Sales Pipeline Management - Lead Management - Contact Management - Workflow Management - Territory Management - Sales Activity Management **Data Availability - Marketing Account Intelligence ** - Technographic Data Availability **Data Accuracy - Marketing Account Intelligence ** - Technographic Data Accuracy **Features** - Lead Builder - Integration to CRM/Marketing Automation - Data Cleaning/Enrichment - Data Segmentation/Filtering - Search - Connections - Reporting - Real-Time Data - Intent Data - Sales Automation - Email Marketing - Real-Time Reporting ## Top Klarity by DemandScience Alternatives - [GTM Workspace - Powered by ZoomInfo](https://www.g2.com/products/gtm-workspace-powered-by-zoominfo/reviews) - 4.5/5.0 (8,873 reviews) - [UpLead](https://www.g2.com/products/uplead/reviews) - 4.7/5.0 (813 reviews) - [Cognism](https://www.g2.com/products/cognism/reviews) - 4.5/5.0 (1,336 reviews)