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14,448 startups · 29 programs

Enact

Active · Real-world RL environments for robotics models

WebsiteYC profile

Why it ranks

How the rank works
7signal of 100 · rising 7
  • went through YCProgram · this site+4
  • team of 2Team size · YC's directory+2.5

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

Competitors

AIidlerShared: hill climb, reinforcement learning, environmentYC S25San FranciscoStartup →AILinewiseShared: robotics model, training, physicalYC X25San FranciscoStartup →AIOrangewood LabsShared: robotics, real, physicalYC W18San FranciscoStartup →AIGeneral InstinctShared: robotics, training, physicalYC X26San FranciscoStartup →AIPerfectBit, Inc.Shared: robotics, environment, realYC X26San FranciscoStartup →
Companies closest to Enact
Company
idlerShared: hill climb, reinforcement learning, environmentYC S25ActiveAI, Devtools
LinewiseShared: robotics model, training, physicalYC X25ActiveAI, Data
Orangewood LabsShared: robotics, real, physicalYC W18ActiveAI
General InstinctShared: robotics, training, physicalYC X26ActiveAI
PerfectBit, Inc.Shared: robotics, environment, realYC X26ActiveAI

Adjacent

AINextera Robotics | DIDGE.aiShared: roboticsYC S20BostonStartup →AIThe Robot Learning CompanyShared: robotics, physicalYC X25BYStartup →AICortex AIShared: reinforcement learning, robotics, modelYC F25San FranciscoStartup →OtherAktoria RoboticsShared: roboticsYC S26San FranciscoStartup →AI6thSenseShared: robotics, physicalYC S26San FranciscoStartup →
Companies next to Enact
Company
Nextera Robotics | DIDGE.aiShared: roboticsYC S20ActiveAI
The Robot Learning CompanyShared: robotics, physicalYC X25ActiveAI
Cortex AIShared: reinforcement learning, robotics, modelYC F25ActiveAI
Aktoria RoboticsShared: roboticsYC S26ActiveOther
6thSenseShared: robotics, physicalYC S26ActiveAI

Also from S26 in AI

All of S26
AIAutoresearch, Inc.Autoresearch as a service: we solve your hardest measurable problemsYC S26San FranciscoStartup →AICoArenaThe biggest crowdsourced benchmark for Computer-UseYC S26San FranciscoStartup →AICueBenchRL post-training for science reasoning and performance engineeringYC S26San FranciscoStartup →AIDatoricThe training data R&D engine for physical AIYC S26San FranciscoStartup →AIDeepReach Inc.Network for Physical AI Data BusinessYC S26San FranciscoStartup →AIExperiential LabsOpen source AI gateway that turns your traffic into better modelsYC S26San FranciscoStartup →
Company
Autoresearch, Inc.Autoresearch as a service: we solve your hardest measurable problemsteam of 3ActiveAI, Devtools
CoArenaThe biggest crowdsourced benchmark for Computer-Useteam of 2ActiveAI, Data, Devtools
CueBenchRL post-training for science reasoning and performance engineeringteam of 3ActiveAI, Data
DatoricThe training data R&D engine for physical AIteam of 2ActiveAI, Data
DeepReach Inc.Network for Physical AI Data Businessteam of 6hiringActiveAI
Experiential LabsOpen source AI gateway that turns your traffic into better modelsteam of 2ActiveAI, Devtools

Founders

  • James StevensFounder/CEO
  • Govind ChadaFounder/CTO

About Enact

Enact creates the physical environments to benchmark and hill climb robotics models on high-value tasks. We find where robots fail, and fix them with our in-house training loop.

YC batch
S26 · Summer 2026
Status, per YC
Active
Category
AI
Team size
2
Location
San Francisco, CA, USA
Founded
2026
Checked
7h ago

YC tags: Reinforcement Learning, Robotics, AI

Enact in S26: 229 companies, 88% AI

LinkedIn

Enact: questions

Which YC batch was Enact in?

Enact was in Y Combinator's Summer 2026 batch (S26).

Is Enact still active?

Y Combinator lists Enact as active.

Who founded Enact?

Enact's founders, as listed on its YC page: James Stevens (Founder/CEO), Govind Chada (Founder/CTO).

Where is Enact based?

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