Clay closed a $115 million Series D on 9 September at a $7.1 billion valuation, led by Wellington Management with Sequoia, a16z and CapitalG returning. That is more than double the $3.1 billion the company was worth in August 2025, thirteen months earlier. Clay sells what it calls GTM Engineers, agents that pull together company data and outside signals to find prospects, track buying intent and run outreach that improves as it runs.
The customer list is the pitch. Clay counts more than 17,000 paying customers, including 80 per cent of the Forbes AI 50, and says Anthropic, Google, OpenAI, Stripe, ElevenLabs and Siemens all use it. Wiring itself into both OpenAI’s and Anthropic’s models rather than picking a side let Clay sell to labs that compete with each other while staying useful to both, an unusual position for a vendor this size.
The company says it has crossed $50 million in annual recurring revenue and is targeting $100 million by next April. Set against a $7.1 billion valuation, that is a revenue multiple north of 140, well above what even generous software comparisons would support, and it prices in growth that has not happened yet. Investors backing the round are betting on Clay’s usage curve, not its current books.
What the round does not settle is whether Clay’s edge survives its own customers building the same capability in house. Every AI lab on its client list is racing to ship agents that do this kind of prospecting work internally too. Clay’s answer, so far, is that switching a live GTM stack is harder than building a demo. Whether that holds is a question the market will price against whatever $100 million in revenue turns out to be worth.
