B2B Contact Databases Software

originally I was sold that I could get 1000 leads a day. Quick math = 365000 leads a year for $1500 that's a killing of a deal. But then, I found out that "leads" were sourced contacts matching ICP, not real leads as these people/companies have not yet raised their hand as interested to be approached by my sales team. And then the other thing that actually threw me off was that it is really 1000 contacts per day. If I don't go there a day or a few days or a few months, I don't get these 1000/day back, the timer resets to 1000 every day. And then it's not 12:00 AM my time, it is 12:00 AM UTC = 5:00 PM my time! Good to know, so that when I start my use of seamless.ai at 4:30 PM, I can go on for another 1000 contacts as of 5:00 and source 2000 contacts every other day. Review collected by and hosted on G2.com.

feeding my AI agent with contacts matching ICP when ICP is a business Review collected by and hosted on G2.com.

The billing and credit system is predatory and poorly designed. I paid for a subscription that included a specific number of monthly API credits. With approximately 1,360 credits still unused near the end of the billing period, the API began returning billing-related errors that completely blocked access before the billing period actually ended.

I immediately contacted Apollo support requesting assistance to restore access so I could use the credits I had already paid for. Support refused to help and explicitly stated that nothing would be done unless I renewed or purchased another subscription. Extortion much?

This is unacceptable. Customers should be able to use the credits they prepaid during the active billing cycle. Instead, Apollo effectively made my remaining credits worthless unless I paid them more money. Their support response felt like deliberate extortion rather than customer service.

This experience left me with a very negative view of their business practices. I lost access to a significant portion of the service I paid for with zero meaningful remedy. Review collected by and hosted on G2.com.

Unfortunately, Apollo.io did not solve any meaningful problems for me. I signed up intending to use it for B2B data enrichment, contact sourcing, and API-driven automation workflows. However, I was never able to reach that point due to hallucination and billing/access issues.

Near the end (not at the end) of my paid billing cycle, with ~1,360 API credits still available, the platform started returning billing errors that prevented any further usage. Support refused to restore access unless I paid for another subscription. As a result, I received essentially zero benefit from the service despite paying in full.

The only clear outcome was that my wallet became noticeably lighter while Apollo retained my money for credits I was blocked from using. This experience highlighted a major flaw in their billing practices rather than delivering any of the promised sales intelligence or workflow benefits. Review collected by and hosted on G2.com.

A few friction points worth flagging:

- Data decay on smaller accounts. Contact info stays sharp at the enterprise level, but mid-market and SMB records go stale faster. I cross-check before outreach.

- Intent signal noise. Useful at the account level, but the topic taxonomy is broad. Storage intent sometimes pulls in adjacent categories I have to filter out.

- Export limits. Pulling large lists into CRM hits caps that slow down bulk partner mapping projects.

- Mobile experience. The desktop workspace is strong, but mobile feels like an afterthought when I need a quick lookup between meetings.

- Learning curve on advanced search. Boolean filters and saved searches take time to master. Worth it once you get there, but not intuitive on day one.

- Pricing tiers. Some features I would use sit behind higher tiers, which forces tradeoffs on what to activate. Review collected by and hosted on G2.com.

GTM Workspace solves a few problems that used to eat real time in my channel role:

- Partner and end-user research in one place. I no longer bounce between LinkedIn, company websites, and internal CRM notes to build a picture of an account. Cuts pre-call prep from an hour to ten minutes.

- Finding the right contact. Verified direct dials and emails mean my outreach lands with decision makers instead of gatekeepers. Response rates climbed once I stopped relying on guessed email patterns.

- Account prioritization. Intent signals show which accounts are actively researching storage, backup, or virtualization. I route those to partners while the interest is warm instead of cold calling blind.

- Lookalike targeting. When a partner closes a strong deal, I build a similar companies list in minutes and hand them a vetted target account list. That turns one win into a repeatable motion.

- CRM hygiene. HubSpot enrichment keeps partner and contact records current without manual cleanup, so reporting actually reflects reality.

Net benefit: more pipeline sourced through partners, less time on research, and faster handoffs from signal to action. Review collected by and hosted on G2.com.

I haven't experienced any major downsides so far. The platform has worked well for my needs and has been a valuable tool. Review collected by and hosted on G2.com.

Lead Forensics helps us identify which companies are visiting our website, allowing us to prioritise warm outbound prospects rather than relying solely on cold outreach. It's also made it much easier to identify the right decision-makers within those businesses, helping us have more relevant conversations and making our prospecting far more targeted and efficient. Review collected by and hosted on G2.com.

The credit system can be a bit frustrating when a search returns contacts that don't fully match my criteria, since I still end up spending credits on records I can't use. For a niche vertical like private aviation, coverage of direct dials is sometimes thinner than I'd like, so I occasionally have to fall back to other sources. I'd also love faster bulk exports for larger lists, as they can take a while to process. Review collected by and hosted on G2.com.

Wiza solves the problem of sourcing accurate, up-to-date contact information for hard-to-reach prospects. In my role I need to connect with private aviation brokers, who aren't always easy to find through standard databases. Wiza lets me build targeted prospect lists from LinkedIn and get verified emails and phone numbers, which saves hours of manual research and keeps my outreach data clean. This has made my prospecting far more efficient and improved my connect and reply rates. Review collected by and hosted on G2.com.

It’s not a tool we use every day. I get the sense that some of our teams sometimes forget it’s even there, while certain marketing teams running campaigns are much better at using 6sense than others. We’ve also had conversations with 6sense and felt like our account rep dropped the ball on following up on what we need next. Overall, we haven’t had the best customer experience with 6sense but we’re hoping that improves. Review collected by and hosted on G2.com.

6sense Revenue Marketing has helped us better target and personalize our outreach by identifying the right leads and strengthening our pipeline. By using predictive data to support booking growth, it addresses the problem of reaching out to the wrong person and enables more data-driven, personalized campaigns. We've recently ran some SDR sequences and were able to book 4 new demos from it based on the data. Review collected by and hosted on G2.com.

While the platform is highly functional, the search filters can sometimes feel slightly cluttered when building highly specific criteria for European regions. Additionally, bulk exporting large lists can take a bit of time to process, though the quality and accuracy of the resulting data make the short wait entirely worth it. Review collected by and hosted on G2.com.

We struggled with missing or outdated contact details (specifically direct dials and emails) when compiling and enriching B2B lists and tradeshow exhibitors. Now, using Cognism, we can instantly enrich these lists with accurate European and international contact data. This has transformed our workflow: we have saved significant time, reducing manual research from days to just a few hours. The direct benefit is a much faster turnaround for our sales outreach and a noticeable increase in connection rates due to the accuracy of their direct-dial data. Review collected by and hosted on G2.com.

The speed is good but you have to increase your database. A more comprehensive, updated database with better coverage & verified contact details would improve it. Also, adding country code-specific phone numbers would help in targeted outreach. Review collected by and hosted on G2.com.

I use A-Leads to quickly generate leads and speed up data mining, saving time and manual effort. Its fast performance and simple interface allow for efficient lead extraction, improving my workflow. Review collected by and hosted on G2.com.

I think they can upgrade more by adding custom time delay for each campaign in minutes and importantly campaign wise scheduling feature - with timezone so that each campaign works in diff timezone and we can find business from all over the world by reaching prospects when they are awake. Review collected by and hosted on G2.com.

I use Waalaxy for B2B lead generation, automating LinkedIn outreach and follow-ups, which saves me from manually contacting each prospect. It also allows personalized targeting and contact enrichment, helping me add two clients in two weeks. Review collected by and hosted on G2.com.

Occasional down time.

Sometimes calls are not transcribed when someone calls you back. Review collected by and hosted on G2.com.

Call volume

Call quality

Booking meetings

Engaging new leads Review collected by and hosted on G2.com.

That it isn't the best kept secret anymore. Review collected by and hosted on G2.com.

Enables the partner org to align based on data with the right partner at the right time. It helps our sales team adjust the narrative based on the ecosystem the customer already has invested in. Not giving away too much but data driven cross functional collaboration for not just landing accounts but retaining and expanding. Review collected by and hosted on G2.com.

One pain point is that technical profile filters, while useful, could be more granular. We often need to target based on exact types of production equipment, control systems, or automation maturity levels, but the current options don’t go deep enough for specialized industrial use cases. We still end up manually cross-checking some records. Second, CRM integration could be smoother. The export process works fine, but direct, automated syncing would save us time and reduce manual data entry errors when updating our sales system. Review collected by and hosted on G2.com.

BookYourData drastically cuts the time spent sourcing and verifying B2B contacts, improves lead quality and compliance, and enhances outreach by providing accurate, GDPR-compliant data tailored for the industrial automation sector. Review collected by and hosted on G2.com.

The free credit limit can feel restrictive when I’m building larger prospect lists, so I have to be selective about which searches I run. I’d also like more direct integrations and simpler bulk-export options to move verified contacts into my outreach workflows more easily. That said, the core prospecting and verification experience is straightforward and easy to use. Review collected by and hosted on G2.com.

Prospeo helps me solve the time-consuming task of finding accurate B2B contact details and confirming whether emails are valid before I start outreach. Rather than manually researching contacts across multiple sources, I can identify relevant decision-makers and verify their email addresses within a single workflow. As a result, I’m able to build cleaner prospect lists for cold-email campaigns, cut down on wasted outreach to invalid addresses, and spend more time on personalization and overall campaign strategy. Review collected by and hosted on G2.com.

One of the main drawback of this LinkedIn Sales navigator is feel expensive for small business and startup companies

Limited In-Mail credits on low price plans

Data Accuracy issue for the people who switch job role

Complex search results take time to load leads and accounts information Review collected by and hosted on G2.com.

LinkedIn sales navigator solves the mail problem below

Find Qualified leads and accounts faster based on industry, role, company size and location

Using this tool we have improved sales efficiency, managing prospecting more effectively and helps to improve strong relationship for cold outreach Review collected by and hosted on G2.com.

While Skrapp.io is a useful tool overall, there are a few downsides that can be frustrating. One of the main issues is that the email database, while generally accurate, can still return outdated or incorrect emails at times, especially for smaller companies or less active profiles.

The credit system can also feel limiting. Credits get used up quickly, particularly when you're doing bulk searches or verifications, which means you may need to upgrade sooner than expected. For smaller users or startups, this can make it feel a bit expensive for the value provided.

Another drawback is that the platform can occasionally be slow when extracting large lists, and the LinkedIn integration doesn’t always capture every available contact, requiring some manual effort to fill in the gaps.

Lastly, while the interface is simple, some advanced filtering and segmentation features are missing compared to more robust competitors, which can limit deeper prospecting strategies.

Overall, Skrapp.io works well for basic use, but it may fall short if you need more advanced functionality or higher scalability. Review collected by and hosted on G2.com.

Skrapp.io solves one of the biggest challenges in B2B outreach, finding accurate contact information for the right people quickly. Instead of spending hours manually searching for emails or guessing formats, it allows me to instantly find verified email addresses using just a name, company, or LinkedIn profile.

Another major problem it addresses is low-quality or invalid data. Sending emails to incorrect addresses leads to high bounce rates and wasted effort. Skrapp.io’s built-in email verification helps ensure that the contacts I reach out to are valid, which improves deliverability and campaign performance.

It also solves the issue of time-consuming lead generation. With features like LinkedIn integration and bulk email extraction, I can build targeted prospect lists in minutes instead of hours. This makes the entire outreach process much more efficient and scalable.

Because of these solutions, the benefits for me are clear:

I save a significant amount of time on prospecting

My outreach campaigns have fewer bounces and better response rates

I can focus more on closing deals rather than searching for contacts

It helps me scale outreach efforts without needing a large team

Overall, Skrapp.io turns a slow, manual process into a fast and data-driven workflow, which directly improves productivity and results. Review collected by and hosted on G2.com.

The sequence email sent count should increase. Currently, we can send 500 emails per day. Since we are running multiple sequences, the mail count is limited, and we have to wait for one sequence to complete before starting another one. Review collected by and hosted on G2.com.

I use RocketReach to extract contact emails and send emails using sequences. It helps me connect on social platforms like Facebook and LinkedIn instead of just emails or calls. Review collected by and hosted on G2.com.

It is a bit complicated for a new commers take a lot of training to let the new comers understand the tools also the tools are costly which effects the budget of the projects Review collected by and hosted on G2.com.

As the interface is user friendly hence its helps users to understand the concept of the business and improves the sales and marketing of our business Review collected by and hosted on G2.com.

The scheduling flexibility could be better. If you want granular control over send windows, specific time zones, custom intervals between messages, you're working around the tool more than with it.

Reporting is also fairly surface-level. I'd like deeper visibility into what's actually driving replies, not just open and response rates.

Not dealbreakers, but there's room to grow on both fronts. Review collected by and hosted on G2.com.

Cold outreach on LinkedIn is tedious at scale. Writing personalised messages one by one is not a real option when you're managing multiple pipelines across different offers. Sendpilot removes that bottleneck.

The benefit is straightforward: more conversations started, less time spent starting them. I'm not sacrificing personalisation for volume, which was always the tradeoff before.

For a solopreneur, that's not a nice-to-have. It's the difference between consistent outreach and none at all. Review collected by and hosted on G2.com.

I find that the retrieval of financial data and financial risk are aspects that could be improved with Delpha. Review collected by and hosted on G2.com.

I use Delpha to enrich contacts and companies and handle duplicates, including the enrichment of Siret numbers in France and VAT numbers in Europe, thus simplifying onboarding through an intuitive interface and native integration with Salesforce. Review collected by and hosted on G2.com.

Strict and Expensive Credit System: The biggest pain point for most users is how quickly credits disappear. The entry-level plans offer a relatively low number of credits, which can be highly restrictive for heavy users or businesses trying to build large outbound lists. Furthermore, unused credits typically expire at the end of the billing cycle rather than rolling over. Review collected by and hosted on G2.com.

Mr. E by EasyLeadz solves B2B data gaps by instantly providing direct mobile numbers of decision-makers directly via LinkedIn.

This benefits users by eliminating manual hunting, bypassing corporate gatekeepers, and increasing sales productivity. It is especially powerful for accessing highly accurate, hard-to-find contact details within the Indian corporate ecosystem. Review collected by and hosted on G2.com.