Hillclimb

Math environments emphasizing verifiable correctness

Hillclimb builds mathematics-domain environments emphasizing correctness and verifiable rewards for frontier model training.

Websitehillclimb.com
DomainsMath
LocationSan Francisco
Team size1-10
FoundersJun Park, Ibrakhim Ustelbay

Similar startups

Also listed under Math.

NameDomainsLocationTeamFundingRaising
Rise Data Labs
US-based expert human data and custom RL environments for enterprise AI
Computer Use, Coding, Finance, Cybersecurity, Legal, Data Labeling, Enterprise, Multi-Domain, RLHF, Custom EnvironmentsUnited States--Yes
Axiom Math
Self-improving AI mathematician with formally verified reasoning
MathSan Francisco11-25Series A, $200M at $1.6B valuation (2026); $264M total-
Epoch AI
Nonprofit research institute behind FrontierMath and AI capability benchmarks
Math, Machine LearningRemote11-25Philanthropic grants (nonprofit)-
Harmonic
Mathematical superintelligence via formally verified reasoning
MathPalo Alto26-50Series B, $100M at ~$900M valuation (Kleiner Perkins, 2025)-
Math, Inc.
Autoformalization agents for verified mathematics
MathPalo Alto1-10Seed, $15M (Torch Capital, Robot Ventures, Chapter One)-
Ulam
Math RL environments and RLVR trajectories
MathWarsaw, London1-10--