What it is
A B2B contact data platform. It finds direct dials, mobile numbers and email addresses for people at companies you want to sell to, tracks job changes, flags buyer intent, and pushes the lot into your CRM. The AI sits in the search and enrichment layer rather than in the writing.
Who buys it
Sales teams whose bottleneck is contact data rather than messaging. If you already know who you want to reach and cannot get hold of them, this is the category. If you know who to reach and your emails are not landing, that is a different problem and the sequencing tools on this page fit better.
How it differs from the others here
AiSDR and Amplemarket lean towards doing the outreach. Seamless leans towards finding and verifying who to reach in the first place. Plenty of teams run a data tool alongside a sending tool rather than choosing between them, so treat this page as three overlapping shapes rather than three direct substitutes.
Pricing
Not published as a straightforward table. There is a free tier with limited credits, then paid plans and bulk credit packages quoted per team. Our link goes to their demo booking page, so expect a call rather than a price on screen. We will publish what we actually paid, with the date, when we test.
What we will test
The nine-task protocol is published on this page. For a data tool the decisive measure is accuracy, not volume: we take a list of contacts we can independently verify and check what proportion of the emails and direct dials are correct, current, and actually reach the person. A platform that returns a large number of wrong numbers is worse than one that returns fewer right ones, because your team pays for the difference twice, once in credits and once in wasted calls.
We also check how it handles people who have moved roles, since stale data is the failure mode this category is most prone to.
Our commercial relationship
We earn a commission if you sign up through our link, via PartnerStack. Rate not yet confirmed against their partner terms, so it is not stated here. It will be, with the date we read it.
Also worth comparing
Lusha solves the same problem and is now covered on this site too. Broadly, Lusha is often preferred for its browser extension and per-contact workflow, Seamless for bulk search and volume. Accuracy in your specific market decides it, which is what the test is for.