Mercor raises $750m Series D at a $20bn valuation
Mercor, the San Francisco startup that pays experts to train and test AI models, has raised $750m in a Series D round valuing it at $20bn. That is double the $10bn valuation it reached with a $350m raise in October 2025. Benchmark, Felicis, General Catalyst, NVIDIA, Salesforce and Zoom were among the investors.
