Mercor, the data company for training and evaluating artificial intelligence, announced on Monday (10) a $750 million Series D round that values the company at $20 billion — double the $10 billion valuation reached in its $350 million Series C in October 2025.
The round included participation from Benchmark, Felicis, Fundomo, funds managed by affiliates of Apollo, G Squared, General Catalyst, Glade Brook Capital, Nvidia, Salesforce, Sapphire Ventures, StepStone Group, XTX Ventures and Zoom, and included an employee tender offer.
Who Mercor is
Founded in 2023 by Brendan Foody, Adarsh Hiremath and Surya Midha, Mercor connects more than five million experts — doctors, lawyers, engineers and other professionals — who are paid to train and evaluate frontier models based on their knowledge. Nvidia is both an investor and a customer: Mercor data was used in its two most recent Nemotron models, according to specialist press.
Where the money goes
The new capital will accelerate investment in infrastructure and research for evaluations (evals) and post-training, as well as building environments where AI agents can practice complex professional workflows. The company also confirmed the completion this year of its acquisition of Deeptune, and the opening of offices in New York and London in 2026, in addition to its San Francisco headquarters.
Mercor says it already spends three times as much on inference as on employee salaries, and that the investment pays for itself by making the team more productive — a sign, according to the company, of how AI is set to spread through the rest of the economy.
Image: Mercor (official blog).
Mercor had already appeared on Geekiki this month: on November 4, the company launched the PLE benchmark with Google, with 85 tasks to evaluate engineering agents. Recall the partnership.
Sources: Business Wire; Mercor's official blog.
Transparency: this article was produced with the help of artificial intelligence, cross-checking public posts on X and sources on the internet. We recommend consulting the original sources cited. Allegations that have not been verified are identified as such in the text.
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