AfterQuery Completes Financing, Valuation Reaches $3.2 Billion

AI training data company AfterQuery has completed a new round of financing, achieving a valuation of $3.2 billion, which is more than ten times the $300 million valuation it reached in April after completing a $30 million Series A round. Y Combinator partner Gustaf Alströmer stated that this is the fastest startup in YC history to become a unicorn. The founders of AfterQuery are only 22 and 23 years old and participated in the YC Winter 2025 batch 18 months ago. The company announced in April that it has an annualized revenue of $100 million, with clients including NVIDIA, Legora, and the South Korean AI lab Motif Technologies. AfterQuery focuses on training models and agents to complete tasks like professionals.

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