AfterQuery reportedly valued at $3.2B in new funding round

In short: AfterQuery has reportedly raised a new funding round that values the company at $3.2 billion.

What happened

AfterQuery, a San Francisco startup that helps train AI systems, has reportedly raised money at a $3.2 billion valuation. A valuation is an estimate of what investors think a company is worth.

This is a big jump from April, when AfterQuery announced a $30 million Series A round at a $300 million valuation. That is more than a 10 times increase in about five months, according to the report.

Y Combinator, a well-known startup program, said this is the fastest any company in its history has gone from launching to becoming a “unicorn.” A unicorn is a private startup valued at $1 billion or more. AfterQuery’s founders are 22 and 23 years old and they joined Y Combinator’s Winter 2025 group about 18 months ago.

AfterQuery says it works with knowledge professionals, including doctors and lawyers, to help train AI systems. It is not only about getting answers right. The company says it trains models and “agents” (AI tools that can carry out tasks) to do work more like a skilled professional would, step by step.

In April, AfterQuery said it had reached an annualized revenue run rate of $100 million, meaning its recent sales pace added up to that amount over a year. The company has named customers including Nvidia, Legora, and Motif Technologies. Forbes first reported the new round, and AfterQuery was not immediately available for comment.

Why it matters

Big jumps in valuation like this can signal strong demand for the behind-the-scenes work that helps AI tools act more reliably in real jobs. If companies keep paying for this kind of training, it could affect how quickly AI spreads into fields like healthcare, law, and business operations.

Source: TechCrunch AI