
Gym Class
What they do:
Connecting the world by simulating it
Quick facts:
HQ: San Francisco, CA, United States
This list has 1,958 startups and was last updated on Oct 15, 2026. 632 of them are hiring right now. Biggest hubs: San Francisco (1,355), New York (312), and Los Angeles (47). Largest teams: Cruise, Relativity Space, and Podium. Latest round: Agriculture Scout AI raised $425K (Oct 13, 2026).

What they do:
Connecting the world by simulating it
Quick facts:
HQ: San Francisco, CA, United States

What they do:
The real-time retrieval engine for search, feeds, and agents.
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HQ: New York, NY, United States

What they do:
AI agents for insurance and benefits
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HQ: New York, NY, United States

What they do:
Sell your home without brokers
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HQ: New York, NY, United States

What they do:
AI-native clearinghouse for insurance
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HQ: New York, NY, United States

What they do:
Workflow automation, without AI hallucinations.
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HQ: San Francisco, CA, United States

What they do:
Production-ready document processing
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HQ: New York, NY, United States

What they do:
Advertising for the new internet
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HQ: Boston, MA, United States

What they do:
Call every LLM API like it's OpenAI [100+ LLMs]
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HQ: San Francisco, CA, United States

What they do:
AI Compliance Platform for Healthcare Organizations
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HQ: San Francisco, CA, United States

What they do:
AI enabled marketplace matching trucks with jobs
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HQ: San Francisco, CA, United States

What they do:
AI Inference Platform for Drug Discovery
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HQ: San Francisco, CA, United States

What they do:
AI for critical banking operations
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HQ: New York, NY, United States

What they do:
AI hiring platform powered by expert recruiters
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HQ: San Francisco, CA, United States

What they do:
Predictive analytics and clinical pathways for hospitals
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HQ: San Francisco, CA, United States

What they do:
The fastest way to ship airtight AI
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HQ: San Francisco, CA, United States

What they do:
AI powered ERP for Construction
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HQ: Los Angeles, CA, United States

What they do:
Automatic circuit board design.
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HQ: San Francisco, CA, United States

What they do:
The fashion product engineering intelligence
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HQ: San Francisco, CA, United States

What they do:
Building the AI data engine for any modality and scale
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HQ: San Francisco, CA, United States

What they do:
Build AI Agent teammates and automations in code or no-code
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HQ: San Francisco, CA, United States

What they do:
Engineering a future without cancer deaths.
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HQ: San Francisco, CA, United States

What they do:
Personalized learning built for schools
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HQ: New York, NY, United States

What they do:
Zaymo is building an AI marketing agency
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HQ: Lehi, UT, United States

What they do:
AI edited video souvenirs as a service
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HQ: San Francisco, CA, United States

What they do:
Next-generation mRNA platform to solve cancer, COVID and climate.
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HQ: Boston, MA, United States

What they do:
Patient Intelligence Platform for Genetic Disease
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HQ: San Francisco, CA, United States

What they do:
The AI context platform for private capital. Everything your firm…
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HQ: New York, NY, United States

What they do:
The single platform to run all healthcare operations
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HQ: San Francisco, CA, United States

What they do:
Automate security and privacy reviews
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HQ: Seattle, WA, United States

What they do:
Crazy fast, open source infra for AI agents to use the Internet
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HQ: San Francisco, CA, United States

What they do:
The B2B Payments Platform
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HQ: San Francisco, CA, United States

What they do:
AI agent that helps consumers lower the cost of debt automatically
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HQ: New York, NY, United States

What they do:
The AI communication layer for healthcare
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HQ: New York, NY, United States

What they do:
Building The Next Generation of Night Vision Devices
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HQ: San Francisco, CA, United States

What they do:
Building the open operating system for the automated physical economy.
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HQ: San Francisco, CA, United States