
Mem0
What they do:
The Memory layer for AI Agents
Quick facts:
HQ: San Francisco, CA, United States
This list has 2,134 startups and was last updated on Oct 15, 2026. 661 of them are hiring right now. Biggest hubs: San Francisco (1,471), New York (339), and Los Angeles (51). Largest teams: Cruise, Relativity Space, and Fivetran. Latest round: Safi Analytics raised $22.4M (Oct 14, 2026).

What they do:
The Memory layer for AI Agents
Quick facts:
HQ: San Francisco, CA, United States

What they do:
Complete QA platform for voice agents
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HQ: San Francisco, CA, United States

What they do:
Automated AI data integrations for roll-ups
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HQ: New York, NY, United States

What they do:
Data for audio AI
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HQ: San Francisco, CA, United States

What they do:
GPUs for Agents
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HQ: San Francisco, CA, United States

What they do:
The OS for hospital workforce management
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HQ: New York, NY, United States

What they do:
Faster healthcare payments
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HQ: San Francisco, CA, United States

What they do:
The deterministic layer for frontier intelligence
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HQ: San Francisco, CA, United States

What they do:
Making humanoids dexterous enough to thread a needle
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HQ: San Francisco, CA, United States

What they do:
Build autonomous AI agents for enterprise systems
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HQ: San Francisco, CA, United States

What they do:
Test, monitor, and improve your voice and chat AI agents
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HQ: San Francisco, CA, United States

What they do:
AI Mobile App Quality Assurance Tester
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HQ: San Francisco, CA, United States

What they do:
Voice data for AI
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HQ: San Francisco, CA, United States

What they do:
AI for High-Stakes Work
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HQ: San Francisco, CA, United States

What they do:
AI Physics Engine to replace simulations and prototypes
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HQ: San Francisco, CA, United States

What they do:
AI that makes AI fast
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HQ: San Francisco, CA, United States

What they do:
We automate creator marketing for the world's largest brands
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HQ: San Francisco, CA, United States

What they do:
AI agents for the consumer lending industry
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HQ: San Francisco, CA, United States

What they do:
AI Operating System for Legal Teams
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HQ: San Francisco, CA, United States

What they do:
AI Agents That Run Hotel Operations.
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HQ: San Francisco, CA, United States

What they do:
Intelligence for Automotive Operations
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HQ: New York, NY, United States

What they do:
Real world training envs for healthcare AI models
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HQ: San Francisco, CA, United States

What they do:
AI-powered platform for Accessible and Personalized Breast Health…
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HQ: San Francisco, CA, United States

What they do:
Computational antibody design
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HQ: Austin, TX, United States

What they do:
Robots that feed the world - robotic harvesting and analytics
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HQ: Pittsburgh, PA, United States

What they do:
We create activating antibodies to treat diseases others can’t.
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HQ: San Francisco, CA, United States

What they do:
Helping B2B co's sync data to their customers
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HQ: New York, NY, United States

What they do:
A growth automation platform for Amazon sellers
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HQ: Las Vegas, NV, United States

What they do:
AI Business Analysts to gather requirements and optimize processes
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HQ: San Francisco, CA, United States

What they do:
First ECG AI to go beyond diagnostics and recommend treatment
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HQ: San Francisco, CA, United States

What they do:
Build and share apps with friends
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HQ: Seattle, WA, United States

What they do:
Enterprise software for enterprise risk and cyber fraud intelligence
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HQ: New York, NY, United States

What they do:
AI applied research lab building synthetic sapience; human-like AI
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HQ: San Francisco, CA, United States

What they do:
AI for risk and compliance
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HQ: San Francisco, CA, United States

What they do:
The relationship intelligence platform for enterprise revenue
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HQ: San Francisco, CA, United States

What they do:
Sentry for AI Agents
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HQ: San Francisco, CA, United States