Hightouch has closed a $150 million Series D round led by Growth Equity at Goldman Sachs Alternatives and Bain Capital Ventures, valuing the company at $2.75 billion. Iconiq Capital, Sapphire Ventures, Amplify Partners, Y-Combinator, and TD7 — the venture arm of The Trade Desk — also participated. The raise is the most significant bet yet on agentic marketing as a distinct infrastructure category. The company has grown over 100% in each of the past two years, driven by enterprise adoption of AI agents that automate marketing workflows end to end.