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14,448 startups · 29 programs

AfterQuery

Active · Applied research lab curating data solutions for foundation model…

WebsiteYC profile

Why it ranks

How the rank works
14signal of 100 · rising 8
  • team of 30Team size · YC's directory+7.7
  • went through YCProgram · this site+4
  • hiringHiring · Titles (titles.fru.dev), YC+2

A sum of public facts, not a judgement and not investment advice.

Competitors

AINormalShared: applied research, research labYC S25San FranciscoStartup →AIegoShared: applied research, research lab, frontierYC W24San FranciscoStartup →AITomaShared: applied researchYC W24San FranciscoStartup →AIRiplineShared: applied research, research labspeedrun SR007San FranciscoStartup →AIMaya LabsShared: applied research, research labYC S22BengaluruStartup →OtherTwelveLabsShared: foundation modelStartup →OtherGeneral IntuitionShared: foundation model, lab, frontierStartup →OtherF13Shared: foundation modelStartup →
Companies closest to AfterQuery
Company
NormalShared: applied research, research labYC S25ActiveAI
egoShared: applied research, research lab, frontierYC W24ActiveAI
TomaShared: applied researchYC W24ActiveAI, Devtools
RiplineShared: applied research, research labspeedrun SR007Not statedAI, Data
Maya LabsShared: applied research, research labYC S22ActiveAI
TwelveLabsnot in a program hereShared: foundation modelElsewhereOther
General Intuitionnot in a program hereShared: foundation model, lab, frontierElsewhereOther
F13not in a program hereShared: foundation modelElsewhereOther

Adjacent

AITrue3DShared: research lab, foundation model, infrastructureYC W21New York CityStartup →AIMonteShared: applied research, research labYC S25San FranciscoStartup →AIEpsilabShared: research lab, data labeling, appliedYC F26San FranciscoStartup →AIInactiveMentlioShared: applied research, research labYC S26San FranciscoStartup →AIThe Forecasting CompanyShared: foundation modelYC S24ParisStartup →
Companies next to AfterQuery
Company
True3DShared: research lab, foundation model, infrastructureYC W21ActiveAI, Devtools
MonteShared: applied research, research labYC S25ActiveAI, Devtools
EpsilabShared: research lab, data labeling, appliedYC F26ActiveAI, Data
MentlioShared: applied research, research labYC S26InactiveAI, Devtools
The Forecasting CompanyShared: foundation modelYC S24ActiveAI

Also from W25 in AI

All of W25
AISherpa LabsFrontier DataYC W25San FranciscoStartup →AI.WaveInference for real-time AIYC W25ParisStartup →AI10xAI Sales Teams for Dental PracticesYC W25San FranciscoStartup →AIa0.devWe make mobile apps using AI.YC W25San FranciscoStartup →AIA1Zap by A1BaseThe social network layer for AI appsYC W25San FranciscoStartup →AIAdamAI Powered CADYC W25San FranciscoStartup →
Company
Sherpa LabsFrontier Datateam of 5ActiveAI, Data
.WaveInference for real-time AIteam of 2ActiveAI, Devtools
10xAI Sales Teams for Dental Practicesteam of 3hiringActiveAI, Data
a0.devWe make mobile apps using AI.team of 3hiringActiveAI, Devtools
A1Zap by A1BaseThe social network layer for AI appsteam of 2ActiveAI, Devtools
AdamAI Powered CADteam of 4hiringActiveAI, Devtools

Founders

  • Spencer MateegaFounder/CEO
  • Carlos GeorgescuFounder/CTO

About AfterQuery

AfterQuery is an applied research lab curating data solutions for frontier foundation model development. Serving every frontier AI lab.

YC batch
W25 · Winter 2025
Status, per YC
Active
Category
AI, Data, Developer tools
Team size
30
Location
San Francisco, CA, USA
Founded
2025
Checked
6h ago

YC tags: B2B, Data Labeling, Big Data, AI

Changes seen

TagsOct 19, 2026

No longer tagged Artificial Intelligence.

Source ↗

AfterQuery in W25: 166 companies, 84% AI

LinkedIn

AfterQuery: questions

Which YC batch was AfterQuery in?

AfterQuery was in Y Combinator's Winter 2025 batch (W25).

Is AfterQuery still active?

Y Combinator lists AfterQuery as active.

Who founded AfterQuery?

AfterQuery's founders, as listed on its YC page: Spencer Mateega (Founder/CEO), Carlos Georgescu (Founder/CTO).

Where is AfterQuery based?

AfterQuery lists San Francisco, CA, USA as its location on YC's directory.