Overview
- Mercor completed a $750 million Series D that values the company at $20 billion and doubles its valuation since last year.
- The round included participation from Benchmark, Felicis, Fundomo, Nvidia and funds managed by affiliates of Apollo among other investors.
- Mercor began as an AI hiring platform and now runs a human-in-the-loop marketplace that connects subject-matter experts with model builders to train, test and improve AI agents.
- The company said it will use the new capital to scale training, testing and evaluation infrastructure so enterprises can measure agent reliability, cost and performance.
- Executives say inference (compute) spending has surged—Mercor reports it now spends about three times more on inference than on employee salaries—and the raise reflects strong investor appetite for tools that operationalize domain-specific AI despite a multi-year horizon for full enterprise returns.