Mercor, the San Francisco company that pays experts to train and evaluate AI systems, said it has raised a $750 million Series D at a $20 billion valuation, CEO Brendan Foody wrote in a company post on Nov. 10. The Next Web reported the same round, saying the valuation is double the $10 billion Mercor reached after a $350 million raise in October 2025.
Why it matters: Nvidia, Salesforce and Zoom were among the investors, along with Benchmark, Felicis, Fundomo, funds managed by affiliates of Apollo, G Squared, General Catalyst, Glade Brook Capital, Sapphire Ventures, StepStone Group and XTX Ventures, the company said. Foody wrote that the round included an employee tender; Mercor did not say how much of the $750 million went to that tender, The Next Web reported.
Mercor said it will use the money to expand evaluation and post-training infrastructure, including environments where AI agents can practice professional workflows. The Next Web said the company, which began as an AI hiring platform, now lists a network of more than five million experts and has mainly served frontier AI labs. “Every job in the economy will need its own AI agents, and every company will need a way to train and evaluate them on its own work,” Foody said.
The company said it has opened offices in New York and London this year. Foody also wrote that Mercor already spends three times as much on inference as on employee salaries. The Next Web noted that a spring breach led Meta to freeze some AI data work with Mercor; that episode was not mentioned in the new announcement.