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San Francisco Reinforcement Learning 40 startups

"Reinforcement Learning" Startups in San Francisco

Every active San Francisco startup we index that carries the "Reinforcement Learning" tag.

Last updated
2026-09-02
Hiring right now 3% 1 of 40
Open roles 12
City San Francisco

About "Reinforcement Learning" startups in San Francisco

Our index currently lists 40 tech startups in San Francisco tagged "Reinforcement Learning" — a city×tag slice of the live directory, not every "Reinforcement Learning" company nationwide and not every San Francisco startup regardless of tag. 3% of this slice is hiring right now (1 of 40). Apply links on each profile go to the company's own site; we don't act as a middleman. "Reinforcement Learning" startups in San Francisco include Agentin AI, Atrisa, Aviro, Cartpole, and Clado. Categories represented here: AI / ML, Dev Tools, and Hardware. YC batches in this slice: S26, Sp25, W25, and S25, among others. Widen the view anytime: all San Francisco startups at /startups/location/san-francisco, or every "Reinforcement Learning" company nationwide at /startups/tag/reinforcement-learning.

Agentin AI
Agentin AI
AI Agents that automate enterprise software processes
Reinforcement LearningEnterpriseAI
Open Jobs
Team 2
Founded 2025
Atrisa
Atrisa
AI Agents for Analog Circuit Design
Generative AIReinforcement LearningB2B
Open Jobs
Team 3
Founded 2026
Aviro
Aviro
Environments for Long Horizon Tool Use
Reinforcement Learning
Open Jobs
Team 2
Founded 2025
Cartpole
Cartpole
Building reinforcement learning environments
Artificial IntelligenceReinforcement LearningData Labeling
Open Jobs
Team 2
Founded 2025
Clado
Clado
Global People Search
Artificial IntelligenceReinforcement LearningB2B
Open Jobs
Team 4
Founded 2025
CoArena
CoArena
The biggest crowdsourced benchmark for Computer-Use
AIOpsArtificial IntelligenceMachine Learning
Open Jobs
Team 2
Founded 2026
Cortex AI
Cortex AI
Large-scale real-world robot & human data for embodied AI
Artificial IntelligenceReinforcement LearningRobotics
Open Jobs
Team 3
Founded 2025
CueBench
CueBench
RL post-training for science reasoning and performance engineering
Reinforcement LearningData Engineering
Open Jobs
Team 3
Founded 2026
EdotEnv
EdotEnv
A Quant Neolab building self-improving agents from quant trading
Reinforcement LearningTime Series
Open Jobs
Team 2
Founded 2026
Enact
Enact
Real-world RL environments for robotics models
Reinforcement LearningRoboticsAI
Open Jobs
Team 2
Founded 2026
Experiential Labs
Experiential Labs
Open source OpenRouter that turns your traffic into a better model
Reinforcement LearningInfrastructureAI
Open Jobs
Team 2
Founded 2026
Fabraix
Fabraix
The world's frontier hacker for AI agents.
Artificial IntelligenceReinforcement LearningCybersecurity
Open Jobs
Team 2
Founded 2026
Freesolo
Freesolo
Product Native Models
Reinforcement LearningB2BAI
Open Jobs
Team 4
Founded 2025
hillclimb
hillclimb
Training Data for Recursive Self-Improvement
Reinforcement Learning
Open Jobs
Team 4
Founded 2025
hiloop
hiloop
Autoresearch as a service: we solve your hardest measurable problems
Artificial IntelligenceDeveloper ToolsMachine Learning
Open Jobs
Team 2
Founded 2026
HUD
HUD
Platform for building RL environments and evals
Artificial IntelligenceReinforcement Learning
Open Jobs 12
Team 15
Founded 2025
Idler
Idler
Reinforcement learning environments.
Reinforcement Learning
Open Jobs
Team 13
Founded 2025
JustAI
JustAI
Agentic Marketing Platform
Artificial IntelligenceReinforcement LearningWorkflow Automation
Open Jobs
Team 4
Founded 2024
Kairos
Kairos
Specialized AI for Critical Industries
AIOpsArtificial IntelligenceMachine Learning
Open Jobs
Team 3
Founded 2025
Magma
Magma
Monetize your agent's traces.
Reinforcement LearningData EngineeringAI
Open Jobs
Team 1
Founded 2026
Markov
Markov
Expert computer-use data for frontier AI labs
Reinforcement LearningData LabelingData Engineering
Open Jobs
Team 2
Founded 2026
Monte
Monte
Continual Learning for Agents
Reinforcement LearningB2BInfrastructure
Open Jobs
Team 3
Founded 2025
Olam Labs
Olam Labs
Building multi-agent simulations for model evals and training.
Artificial IntelligenceReinforcement LearningGaming
Open Jobs
Team 2
Founded 2026
Ooak Data
Ooak Data
We turn company data into training data
Artificial IntelligenceReinforcement Learning
Open Jobs
Team 5
Founded 2026
Osmosis
Osmosis
Reinforcement Learning (RL) for AI Agents
Artificial IntelligenceMachine LearningReinforcement Learning
Open Jobs
Team 6
Founded 2025
Praxis AI
Praxis AI
Turns every company into a data vendor
Hard TechReinforcement LearningRobotic Process Automation
Open Jobs
Team 3
Founded 2026
Praxis Robotics
Praxis Robotics
Turns every company into a data vendor
Hard TechReinforcement LearningRobotic Process Automation
Open Jobs
Team 3
Founded 2026
Prodigy Research
Prodigy Research
Training the world's best foundation model for quantitative finance.
Artificial IntelligenceReinforcement LearningFinance
Open Jobs
Team 2
Founded 2026
Refortifai
Refortifai
AI Agents for Analog Circuit Design
Artificial IntelligenceGenerative AIReinforcement Learning
Open Jobs
Team 3
Founded 2026
Resonance
Resonance
Self-improving content bank for marketing
Artificial IntelligenceReinforcement LearningSaaS
Open Jobs
Team 2
Founded 2024
Riften
Riften
Earned intelligence for every company
Artificial IntelligenceDeveloper ToolsReinforcement Learning
Open Jobs
Team
Founded 2026
Sepal AI
Sepal AI
Data Development for Advanced AI
AIOpsReinforcement LearningData Labeling
Open Jobs
Team 15
Founded 2024
Synth
Synth
Prompt and Context Optimization for Coding Agents
Reinforcement LearningAI
Open Jobs
Team 2
Founded 2024
Theta
Theta
Specialized AI for Every Job
Artificial IntelligenceReinforcement LearningB2B
Open Jobs
Team 7
Founded 2025
Topological
Topological
Physics-based foundation models for CAD optimization.
Reinforcement LearningRoboticsDesign Tools
Open Jobs
Team 2
Founded 2025
TrainLoop
TrainLoop
Reasoning Fine-Tuning
Developer ToolsGenerative AIReinforcement Learning
Open Jobs
Team 6
Founded 2025
Traverse
Traverse
Research lab solving non-verifiable work
Machine LearningReinforcement LearningAI
Open Jobs
Team 1
Founded 2026
Velos
Velos
Platform to automate manual back-office work
Artificial IntelligenceGenerative AIReinforcement Learning
Open Jobs
Team 3
Founded 2023
Vibrant Labs
Vibrant Labs
Autonomously scaling environments
Developer ToolsGenerative AIReinforcement Learning
Open Jobs
Team 6
Founded 2024
WorldQL
WorldQL
Custom AI harnesses for enterprises
Artificial IntelligenceReinforcement LearningSecurity
Open Jobs
Team 4
Founded 2022
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Frequently asked questions

How many "Reinforcement Learning" startups are in San Francisco?

Our index currently tracks 40 active tech startups in San Francisco tagged "Reinforcement Learning". Counts move as scrapers discover new companies and flag shutdowns inactive.

Which "Reinforcement Learning" startups are based in San Francisco?

Companies on this page include Agentin AI, Atrisa, and Aviro, plus 37 more below. Each profile links to the company's site and any open roles we scrape.

How is this different from the San Francisco startups page or the "Reinforcement Learning" tag page?

/startups/location/san-francisco lists every indexed startup in San Francisco across tags. /startups/tag/reinforcement-learning lists every "Reinforcement Learning" startup nationwide. This page is the intersection — only companies that resolve to both San Francisco and "Reinforcement Learning".

Are these San Francisco "Reinforcement Learning" startups hiring?

1 of the 40 companies on this page currently have open roles in our jobs index.

How often is this list updated?

Automated scrapers refresh on the same daily cadence as the rest of the directory. The last index update was 2026-09-02.