14,993 jobs
501-1000 employees
Y Combinator Raised $300M in 2023 $29.0B valuation
What they do:
OpenAI is an AI research company, discovering and enacting the path to safe artificial general intelligence.
Artificial Intelligence
SaaS
Consumer
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
501-1000 employees
Founded: 2015
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IT/AV Operations Engineer, Corporate Engineering
201-500 employees
Sequoia Y Combinator $150M Series D in 2025 $4.2B valuation
What they do:
Vanta is an automated security monitoring platform that helps companies get SOC 2, HIPAA, or ISO 27001 certified quickly.
Cybersecurity
Software
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
201-500 employees
Founded: 2017
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201-500 employees
Sequoia Kleiner Perkins $300M Series E in 2025 $5.0B valuation
What they do:
AI provider for legal workers
Artificial Intelligence
Legal
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
201-500 employees
Founded: 2021
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101-200 employees
Benchmark Y Combinator $48M Series C in 2021 $2.0B valuation
What they do:
Build gnarly payments infrastructure to help companies move money more reliably than manual ACH, wires and checks
FinTech
Payments
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
101-200 employees
Founded: 2018
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101-200 employees
Kleiner Perkins $8M Series B in 2021 $390M valuation
What they do:
Inkitt is a digital publishing platform that predicts book success based on reader behavior.
Media
Publishing
Analytics
Quick facts:
📍HQ: Berlin, Germany
101-200 employees
Founded: 2013
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Electrical Systems Engineer, Towers
501-1000 employees
Sequoia Andreessen Horowitz $250M Series E in 2021 $2.8B valuation
What they do:
Zipline designs, manufactures, and operates drones to deliver vital medical products.
Robotics
Hardware
Healthcare
Quick facts:
📍HQ: Las Vegas, Nevada, USA
501-1000 employees
Founded: 2011
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501-1000 employees
Founders Fund Y Combinator Accel $473M Series E in 2021 $7.3B valuation
What they do:
Scale AI is the data platform for AI, providing high quality training data for leading machine learning teams.
Developer APIs
Artificial Intelligence
Developer Tools
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
501-1000 employees
Founded: 2016
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Software Engineer - Infrastructure
101-200 employees
Benchmark Y Combinator $48M Series C in 2021 $2.0B valuation
What they do:
Build gnarly payments infrastructure to help companies move money more reliably than manual ACH, wires and checks
FinTech
Payments
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
101-200 employees
Founded: 2018
Take action:
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501-1000 employees
Y Combinator Raised $300M in 2023 $29.0B valuation
What they do:
OpenAI is an AI research company, discovering and enacting the path to safe artificial general intelligence.
Artificial Intelligence
SaaS
Consumer
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
501-1000 employees
Founded: 2015
Take action:
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Check company site 📌
201-500 employees
Sequoia Kleiner Perkins $300M Series E in 2025 $5.0B valuation
What they do:
AI provider for legal workers
Artificial Intelligence
Legal
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
201-500 employees
Founded: 2021
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Marketing Operations Lead, Bridge
5000+ employees
Sequoia Andreessen Horowitz $6B Series I in 2023 $50.0B valuation
What they do:
Stripe is a developer-oriented commerce company helping small and large companies accept web and mobile payments.
FinTech
Payments
SaaS
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
5000+ employees
Founded: 2010
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501-1000 employees
Y Combinator Raised $300M in 2023 $29.0B valuation
What they do:
OpenAI is an AI research company, discovering and enacting the path to safe artificial general intelligence.
Artificial Intelligence
SaaS
Consumer
Quick facts:
📍HQ: San Francisco Bay Area, California, USA
501-1000 employees
Founded: 2015
Take action:
See who works here 🤝
Check company site 📌