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AfterQuery

AF
AISan FranciscoFounded 2024Website
#263 by valuation

AfterQuery develops training data for foundation models. It works with domain experts to capture reasoning, decisions, tradeoffs, and context, then structures that knowledge for AI labs and model developers. Its data services support model development in domains where expert judgment matters.

Founded by Spencer Mateega (CEO, Founder), Carlos Georgescu (CTO, Co-Founder, Founder), Danny Tang (Co-Founder)

Blended valuation$3.2B
Valuation history
Weekly blended valuation with priced funding rounds marked on the timeline.
$3.4B
blended valuationfunding round
Dec 29, 2025$68MOct 5, 2026
All rounds
5 funding rounds, newest first.
RoundAnnouncedRaisedPost-money
Series BSep 1, 2026—$3.2B
Series AApr 9, 2026$30M$300M
RoundDec 31, 2025$500K—
Pre SeedMar 12, 2025$500K—
SeedMar 1, 2025$130K—
Investors
6 investors across all rounds.
  • BO
    BoxGroup
  • AV
    Altos Ventures
  • YC
    Y Combinator
  • RV
    Raine Ventures
  • LC
    Latitude Capital
  • TR
    The Raine Group
Secondary market activity
Recent buy and sell interest for AfterQuery shares on the secondary market.
KindImplied valuationPrice / shareDate
Quote$300M—Jan 1, 2026

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Data as of Oct 14, 2026. Valuations are estimates blended from primary and secondary-market signals — not investment advice.