$115M Series D, $7.1B Valuation, Building AI Agents for the Next Generation of Growth
Clay, the AI go-to-market company, has raised $115M in Series D funding at a $7.1B valuation, led by Wellington, with participation from Sequoia, StepStone, Andreessen Horowitz, Perennial, Meritech, DST, CapitalG, BoxGroup, Boldstart, Bloomberg Beta and Evolution. The company now serves more than 17,000 customers, including Anthropic, Google, OpenAI, Stripe, ElevenLabs, Workday and Siemens.
From B2B Data to AI-Powered Growth
Clay started by bringing together data from multiple providers to help businesses find and understand potential customers.
The platform has since expanded into a broader go-to-market infrastructure, allowing teams to build personalised campaigns across email, advertising, landing pages and workflows. Now, Clay is taking another step by developing AI agents that can help companies execute growth activities themselves.
Building a Self-Learning Revenue Engine
Clay's latest vision goes beyond AI-assisted sales and marketing.
Its growth agents are designed to help identify ideal customers, monitor intent signals, launch campaigns and determine the next best action for a business. As these agents operate, Clay says they can learn from outcomes and become more effective over time.
The company describes this as building a self-learning revenue engine, where AI doesn't simply recommend what a team should do, but increasingly helps execute the work.
A Rapidly Growing AI Platform
The latest raise comes just over a year after Clay's $100M Series C, which valued the company at $3.1B.
Clay says its revenue grew fourfold in 2025 and that more than 17,000 companies now use the platform. The company also says 80% of the Forbes AI 50 use Clay, highlighting its growing position within the AI and technology ecosystem.
The new funding will support Clay's continued development of its AI growth platform, alongside a newly announced $1M scholarship fund aimed at training the next generation of go-to-market engineers.
What It Means for Marketing
Clay's latest funding is another signal that AI-powered marketing and sales are moving beyond automation.
The next wave of AI tools is increasingly focused on taking action. Instead of simply generating an email, analysing a campaign or recommending a prospect, AI agents can increasingly connect data, make decisions and execute multi-step growth workflows.
For marketing teams, that could mean a shift from managing individual tools and campaigns toward directing AI systems that continuously identify opportunities and act on them.
Clay's bet is that the future of go-to-market will look less like a collection of disconnected tools and more like an intelligent growth system that learns from every interaction.
As AI agents become more capable, the companies that can combine data, automation, human strategy and autonomous execution may have a significant advantage in how quickly they can identify and act on new growth opportunities.