AI Ark is a B2B data platform for building targeted prospect lists. It runs on a database of 70 million companies and 400 million professional profiles. Its core job is turning an ideal customer profile into an exportable list of matched companies and decision-makers with verified contact details, including work emails and mobile numbers. Its signature feature is Lookalike Search, which takes your best accounts and finds companies that resemble them. It's a semantic search feature that reads plain language queries instead of forcing rigid filters. Every email is validated at export through BounceBan, and you pay only for the addresses that verify. So, in a typical GTM stack, for example, AI Ark must sit at the top, as part of the data source tools. You get API access and Clay compatibility that let it feed a Clay table or a CRM, so it plays the same role as Apollo or a paid Clay provider. The platform offers a credible, competitively priced option in the category we work in. Because it is newer and its coverage numbers are self reported, we recommend you pilot it against a real ICP before trusting it.