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14,448 startups · 29 programs

Sureform

Active · Real-world company data for frontier AI

WebsiteYC profile

Why it ranks

How the rank works
8signal of 100 · rising 5
  • went through YCProgram · this site+4
  • team of 4Team size · YC's directory+3.6

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

Competitors

AISherpa LabsShared: data labeling, frontierYC W25San FranciscoStartup →AITiliterShared: operational dataGoogle AI Australia and New Zealand 2026Startup →AICartpoleShared: data labeling, frontier, trainingYC X25San FranciscoStartup →AISciloopShared: data labeling, frontier, trainingYC F25San FranciscoStartup →AIRubric AIShared: training signalYC W26New York CityStartup →
Companies closest to Sureform
Company
Sherpa LabsShared: data labeling, frontierYC W25ActiveAI, Data
TiliterShared: operational dataGoogle AI Australia and New Zealand 2026Not statedAI
CartpoleShared: data labeling, frontier, trainingYC X25ActiveAI, Data
SciloopShared: data labeling, frontier, trainingYC F25ActiveAI, Data, Devtools
Rubric AIShared: training signalYC W26ActiveAI

Adjacent

AIDeepinventShared: frontierAntler 2025USStartup →AIPerit.AIShared: data labelingYC F26San FranciscoStartup →OtherKimiaShared: operational dataGoogle AI Australia and New Zealand 2026Startup →OtherClaroShared: operational dataAntler 2024GermanyStartup →AIPlutoshiftShared: operational data500 Global GA 19United StatesStartup →
Companies next to Sureform
Company
DeepinventShared: frontierAntler 2025Not statedAI
Perit.AIShared: data labelingYC F26ActiveAI, Data
KimiaShared: operational dataGoogle AI Australia and New Zealand 2026Not statedOther
ClaroShared: operational dataAntler 2024Not statedOther
PlutoshiftShared: operational data500 Global GA 19Not statedAI

Also from X25 in AI

All of X25
AIBesimple AIVoice data for AIYC X25San FranciscoStartup →AIAcoliteAI Native Commercial Insurance BrokerYC X25PhiladelphiaStartup →AIAdentrisReal-time AI Compliance & Revenue Integrity for Medical ProvidersYC X25San FranciscoStartup →AIAegisAI Agents to win denied health insurance claims.YC X25San FranciscoStartup →AIAirweaveThe open-source context retrieval layer for agentsYC X25San FranciscoStartup →AIAlkaliThe smarter way to estimate steel.YC X25HoustonStartup →
Company
Besimple AIVoice data for AIteam of 8hiringActiveAI, Data
AcoliteAI Native Commercial Insurance Brokerteam of 3ActiveAI
AdentrisReal-time AI Compliance & Revenue Integrity for Medical Providersteam of 5hiringActiveAI
AegisAI Agents to win denied health insurance claims.team of 3ActiveAI
AirweaveThe open-source context retrieval layer for agentsteam of 7hiringActiveAI, Devtools
AlkaliThe smarter way to estimate steel.team of 2hiringActiveAI, Devtools

Founders

  • Ananth KashyapFounder/CEO

About Sureform

Sureform help companies monetize their internal operational data by turning it into training signal for frontier AI.

YC batch
X25 · Spring 2025
Status, per YC
Active
Category
AI, Data
Team size
4
Location
San Francisco, CA, USA
Founded
2025
Checked
6h ago

YC tags: Marketplace, Data Labeling, AI

Changes seen

Team sizeOct 12, 2026

Team went from 2 to 4 people.

Source ↗
One-linerOct 12, 2026

Rewrote its one-liner; it read "Real-world data and RL environments for frontier AI"

Source ↗
TagsOct 12, 2026

No longer tagged Robotics.

Source ↗

Sureform in X25: 144 companies, 90% AI

LinkedIn

Sureform: questions

Which YC batch was Sureform in?

Sureform was in Y Combinator's Spring 2025 batch (X25).

Is Sureform still active?

Y Combinator lists Sureform as active.

Who founded Sureform?

Sureform's founders, as listed on its YC page: Ananth Kashyap (Founder/CEO).

Where is Sureform based?

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