Klarity by DemandScience Reviews & Product Details

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contacts and 26M+ companies, it integrates firmographics, technographics, and intent signals so users can move beyond outdated static lists and build dynamic audiences that align with real buyer behavior.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.

Seller

DemandScience

Discussions

Klarity by DemandScience Community

Languages Supported

English

Solution Type

All-in-One

Overview by

AJ DeMarco

Value at a Glance

Averages based on real user reviews.

Time to Implement

<1 month

Return on Investment

8 months

View More Pricing Information

Top-Rated Alternatives

GTM Workspace - Powered by ZoomInfo

View All Alternatives

User Insights

Average based on 172 real user reviews.

Implementation Time

<1 month

Perceived Cost

$$$$$

Klarity by DemandScience Reviews FAQs

Generated using AI

Last updated: Nov 04, 2026

What is Klarity by DemandScience, and what problem is it built to solve?

The offering combines proprietary data with activation across events, content, programmatic advertising, and chat to reach buyer groups. It is built to help generate demand from target accounts and support pipeline development across the sales funnel.

What languages does Klarity by DemandScience support?

It supports one language: English.

What company sizes and industries is Klarity by DemandScience the best fit for?

Positive experiences are concentrated among small-business and mid-market teams, with marketing and technology-related industries appearing most often. The clearest segments are:

Small businesses: the most represented company-size segment among positive reviewers.
Mid-market companies: another prominent segment.
Marketing and advertising: a leading industry represented in positive reviews.
Computer software and information technology services: also well represented.

How long does it take to implement Klarity by DemandScience across a team?

Teams most often report getting started in less than a day. Longer implementations are also reported, but they are less common.

Time to go live	Relative frequency
Less than 1 day	Most common
Less than 1 month	Less common
1–3 months	Occasional

What customer support options does Klarity by DemandScience provide, and how do users find the overall support experience?

Support is available by phone, email or help desk, and chat. The support experience is often described as responsive and helpful, though some users have encountered frustrating communication or service issues.

What is the experience like for teams switching to Klarity by DemandScience from another tool?

Switching from tools such as ZoomInfo, D&B Hoovers, DiscoverOrg, and Seamless.AI was often motivated by the need for more affordable access to prospect data. Users also point to more useful targeting and intent filters, better data for their needs, or a simpler experience; others found the transition worthwhile because of improved data quality or support.

What features or capabilities could make Klarity by DemandScience even more useful?

More flexible search and filtering would make the product more useful for narrowly defined targeting. Improvements that users would value include:

More granular filters and search controls, including stronger ways to combine or exclude criteria.
Broader, more current contact coverage, including better coverage in specific regions and niche markets.
More direct and mobile phone numbers, alongside improved contact-data accuracy.

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Fred H.

Partner

Small-Business (50 or fewer emp.)

9/26/2019

"Very cost-effective solution for outbound sales and marketing contacts"

4.5/5

What do you like best about Klarity by DemandScience?

Leadiro provides the most email verified contacts for the lowest monthly payment. Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

There are additional charges for narrowing down the markets for identifying potential customers. Review collected by and hosted on G2.com.

Recommendations to others considering Klarity by DemandScience:

I recommend giving Leadiro a try. We have found it to be very useful for in house sales and marketing. Review collected by and hosted on G2.com.

What problems is Klarity by DemandScience solving and how is that benefiting you?

We are using Leadiro for finding potential customers across different business segments and geographies. Leadiro provides access to many more contacts than other services. Review collected by and hosted on G2.com.

Marian H.

Owner

Mid-Market (51-1000 emp.)

10/10/2019

Business partner of the seller or seller's competitor, not included in G2 scores.

"Easy to use and accurate"

4/5

What do you like best about Klarity by DemandScience?

The most helpful feature of Leadiro is the high level accuracy of the database. I rarely notice a record that is no longer valid, as somebody that left the job and the address has been deactivated. I also love the link to the person's LinkedIn profile. Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

Some countries are less represented. The database is rich in some geographies and less in others. Review collected by and hosted on G2.com.

Recommendations to others considering Klarity by DemandScience:

Match the industries list from Leadiro with the industries list of your CRM in order to get the information right in your CRM. Review collected by and hosted on G2.com.

What problems is Klarity by DemandScience solving and how is that benefiting you?

I build marketing lists that I use for direct marketing campaigns. Review collected by and hosted on G2.com.

Ben C.

Sales Manager

Small-Business (50 or fewer emp.)

10/4/2019

"Good for specific use cases"

2.5/5

What do you like best about Klarity by DemandScience?

How you can upload a list of companies and search them all at once and how you can break down your search by the company industries, then job function, then title Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

When uploading a list of companies there seems to be a huge gap. I rarely have more than 10% of the companies in searching for found. The tool works great if you're just looking for any company, but if you're trying to find contacts at a specific company I wouldn't recommend Review collected by and hosted on G2.com.

Verified User in Computer Software

Small-Business (50 or fewer emp.)

3/31/2020

"Not much success"

3/5

What do you like best about Klarity by DemandScience?

The ability to find the tech usage, we were looking for outlook users. Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

The very high bounce rates, it's not ideal. Review collected by and hosted on G2.com.

Verified User in Information Technology and Services

Small-Business (50 or fewer emp.)

10/9/2019

"The experience has been very simple and easy."

4/5

What do you like best about Klarity by DemandScience?

I like that it is very easy to use and easy to control. I like that it puts it into an excel spreadsheet for you when you download and you don't have to manually put in your data, like other Softwares as that is very time-consuming. I also like that it provides links to organisations employees LinkedIn, making it easier to connect. Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

I dislike, that there aren't as many small organizations on the site, especially in the UK and also that the data isn't updated as easily so you have to check if they still work there through other sources. Review collected by and hosted on G2.com.

Verified User in Information Technology and Services

Mid-Market (51-1000 emp.)

3/16/2020

"CCO"

4.5/5

What do you like best about Klarity by DemandScience?

Technology Install Search

Monthly pricing with no term. Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

Auto renewal of monthly term.

Not as large a database as ZoomInfo. Review collected by and hosted on G2.com.

Verified User in Information Technology and Services

Small-Business (50 or fewer emp.)

11/28/2019

"Excellent Experience"

5/5

What do you like best about Klarity by DemandScience?

The staff at Leadiro are super helpful and responsive. We added a ton of value to our organization with the information they provided. Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

They could use a refresh on their interface. Review collected by and hosted on G2.com.

Verified User in Marketing and Advertising

Small-Business (50 or fewer emp.)

5/3/2019

"It is alright in some areas, not so good in others and the customer service needs some work"

1.5/5

What do you like best about Klarity by DemandScience?

It is a "plug n play" service and so, you need data, off you go - run a search and you can find the data you need. Install data is an additional cost, but it is available. It covers countries very well and is especially useful where seniority is not a big issue. Classification is pretty good for the most part. Their ABM tool is pretty good too. Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

LOW SENIORITY CONTACTS and HIGH HARD-BOUNCE RATES. High hard-bounce rates exist mostly in regions like the UAE. Nearly 90% bounce and when I told them that that impacted our "sending reputation" and caused problems with the email campaign provider we use, asking for more information why there was such a massive hard bounce rate, I got a rude response, credited 500 free names and basically ignored. Also, when I previously sent bounce data to them, they complained as it had a couple of addresses that had been sent to them previously. Honestly - this service could be great - but the customer service leaves a bad taste for their overall ability. I question the validity of their validation checking and would be very cautious about sending to their data before running it through unbounce or zero bounce or a service like that. Also, I thought they were a GDPR compliant service but I am not sure that they are. Review collected by and hosted on G2.com.

Recommendations to others considering Klarity by DemandScience:

Better quality checking and improved customer service Review collected by and hosted on G2.com.

What problems is Klarity by DemandScience solving and how is that benefiting you?

Currently, I am not sure whether Leadiro has benefitted my business other than a few leads - I have spent a fair amount with them but will be cancelling my service with them. They need to work on their customer service and quality checking of their data. Review collected by and hosted on G2.com.

Verified User in Transportation/Trucking/Railroad

Small-Business (50 or fewer emp.)

9/24/2019

"Leadiro is Awesome!!!!"

5/5

What do you like best about Klarity by DemandScience?

I love the fact that there are so many filters to make sure you get the most qualified leads for your business. Plus the price is incredible! Review collected by and hosted on G2.com.

What do you dislike about Klarity by DemandScience?

Not much. The only thing I would say can be improved a little is verification. Review collected by and hosted on G2.com.

Recommendations to others considering Klarity by DemandScience:

Leadiro is worth a shot. The price is amazing so you really have nothing to lose. Review collected by and hosted on G2.com.

What problems is Klarity by DemandScience solving and how is that benefiting you?

I am increasing my business's outreach with Leadiro leads. My email marketing has also seen large improvements. Review collected by and hosted on G2.com.