Product was decent. Extremely Poor billing experience makes it a stay away from. Review collected by and hosted on G2.com.

We asked Seamless.AI in 2024 not to auto-renew our subscription, and Seamless confirmed in writing on March 15, 2024 that our license was set to cancel. In 2025 Seamless renewed us anyway. Their account rep acknowledged in writing on July 10, 2025 that the renewal should not have happened based on our earlier request. Three weeks later we signed a one-year renewal with the same rep, understanding it as a continuation for one more year. Seamless then auto-renewed us again in 2026 without any reminder or invoice beforehand, and the first notice we received came from their collections team. We had no access to and made no use of the service in the new term.

During the dispute, Seamless also emailed us an order form where our full card number, security code and expiration date were still readable under the redaction.

We ultimately paid a settlement, not because we accept that anything was owed, but to avoid the nuisance, time and legal costs of continuing the dispute. We are not seeking a refund. We are filing this complaint because Seamless’s practice of silently renewing accounts, ignoring customers’ written instructions, and relying on collections pressure to extract payment is unfair and deceptive, and it should be stopped before it costs other businesses the same. Review collected by and hosted on G2.com.

We easily get Contact as well as Company information. Easy to get direct and mobile number. Review collected by and hosted on G2.com.

It should combine multiple users data. If I have 3 users and one user downloads a data, it should show to the other 2 users that the data is already downloaded. It avoids downloading the same data by multiple users. Review collected by and hosted on G2.com.

I like that I can quickly search for a company’s contacts and find the information I need to reach them. Seamless saves me time by putting everything in one place instead of making me hunt through multiple sources. It’s a useful tool that helps me be more productive, and setup took just a matter of minutes. Review collected by and hosted on G2.com.

Sometimes Seamless is missing key contact information, like an email address or direct phone number. Review collected by and hosted on G2.com.

Seamless has added new functionality, including CRM features and additional integrations. Review collected by and hosted on G2.com.

Seamless, it's all good! Sometimes emails don't appear. Review collected by and hosted on G2.com.

AI search and buyer intent filters have become really useful for finding the right prospects faster. I also like how easy it is to pull verified contact data directly while researching companies on Linkedin. Review collected by and hosted on G2.com.

Sometimes smaller or newer companies still have missing or outdated contact details. Better accuracy for niche brands and startup teams would make the platform even more reliable for partnership outreach. Review collected by and hosted on G2.com.

This is a highly cost-effective solution for lead generation, particularly for teams looking to manage budgets efficiently.

While the performance and UI/UX are adequate, they are still noticeably better than SalezShark.

I did not require much onboarding, which was not a concern for our use case.

The absence of AI assistance is also a positive in my view.

I have not used any integrations, as our sending and CRM platforms are separate. Review collected by and hosted on G2.com.

While the platform is cost-effective and gets the job done, there are a few areas that could be improved. The UI/UX, although better than some alternatives, still feels a bit basic and could benefit from a more modern, intuitive design. Performance is generally reliable, but there are occasional slowdowns when handling larger datasets.

The lack of AI assistance might be a drawback for teams looking for automation or smarter insights, even though it wasn’t an issue for our specific use case. Additionally, since we didn’t use integrations, I can’t speak to that experience—but for teams that rely heavily on connected workflows, the platform may feel somewhat limited. Review collected by and hosted on G2.com.

Seamless has great features now, especially the data quality has increased a lot. Now I hardly get an invalid emails or contact numbers. Their API automation is phenomenal for data pushing the work load has been due to this upgrade and also now you get to whether a poc has changed companies or not with the new update which is again a plus so, overall it's a great tool. Review collected by and hosted on G2.com.

I don't feel anything is a minus in this tool, the tool has a flow no buffering, and the AI features, are great, it understand the way of my data research and gives data according so, personally it's great tool Review collected by and hosted on G2.com.

the Ai driven data enrichment and automation capabilities has been improves. it not only find contact information but also continuously update and verified data, which helps to maintain better accuracy over time, i have also noticed enhancement in real time lead generation and intent based insights, which makes it easier to identify high quality prospects instead of just collecting large volumes of data. Review collected by and hosted on G2.com.

i think there should be more improvement in data accuracy for certain region and niche industries, while the platform perform well overall, i still need to occasionally verify contact details before sharing them with my team. it would also help if there were more advanced filtering and segmentation options, especially for targeting very specific audiences. but overall its a great improvements for now. Review collected by and hosted on G2.com.

The thing I keep coming back to is the LinkedIn Chrome extension. I work across consulting and B2B media, so I'm constantly building targeted contact lists, and being able to pull verified emails and direct dials right from a prospect's profile, without bouncing between tabs, has genuinely changed how fast I can put a campaign together.

The contact database itself is deeper than I expected too, especially for tech and SaaS roles in the US market. I'd say the email accuracy is somewhere around 80%, which beats most of the alternatives I've tested at this price point.

Honestly though, what made me stick with it was the speed. I used to block out half a day to research and build a 100-contact outreach list. With Seamless I'm doing the same job in under an hour. That time savings compounds fast. Review collected by and hosted on G2.com.

My biggest gripe is data freshness on senior-level contacts. People in director-and-above roles change jobs more often than the database catches up, so I've learned to do a quick LinkedIn cross-check before sending to any C-level prospect. It's not a dealbreaker, but it's something to manage.

The other thing is the credit system, it can feel a bit opaque. A "credit" gets used whether the contact data ends up being usable or not, and while there's a process to flag bad data, it's not as frictionless as I'd like.

Reporting and analytics are also pretty basic. I'd love to see better insights into things like email deliverability trends or which segments of my list are converting, right now I export everything to my own tracking, which works but feels like a missed opportunity.

Nothing here is severe enough to make me switch, but they're real friction points worth knowing. Review collected by and hosted on G2.com.

I use Seamless for finding leads, numbers, emails, and LinkedIn profiles of companies. What I love most about Seamless is that it provides numbers, emails, LinkedIn profiles, and social media profiles of employees from relevant companies all in one place, which is very rare on other platforms. These features help me a lot as a data entry intern because I can find all the information I need in a single place. I found it very easy to use and appreciate that it is user-friendly. Review collected by and hosted on G2.com.

One thing that can be improved is that in the numbers they add dots between some numbers which makes it difficult for me to call at those numbers and I need to every time just edit those and remove dots. Review collected by and hosted on G2.com.