Southern California's
Tech
Startup Directory
Showcasing Southern California's innovation, one startup at a time. Every funded and bootstrapped company, from seed round to first dollar of revenue, tracked as it happens.
Includes SEC Form D filings from the last 3 years, plus all-time totals for companies sourced from YC and news coverage.
Artificial Intelligence
The region's largest single cluster by company count — AI and machine learning threaded through nearly every other industry here, from defense to biotech to entertainment.
Aerospace & Defense
Home to SpaceX, Northrop Grumman, and a new wave of hypersonics and space-infrastructure startups.
Entertainment & Gaming Tech
Hollywood's production infrastructure, live events, and a growing games and creator-tools scene.
Semiconductor Hardware
Qualcomm and Broadcom anchor a chip-design cluster spanning the region.
Medical Technology
A deep biotech research base and a growing bench of medical device and diagnostics startups.
B2B
Business software and services sold to other companies. The largest single category of startup across Southern California, spanning sales tools, vertical operating systems, and everything in between.
Industrials
Manufacturing, hardware, and physical-world operations. Overlaps heavily with the region's decades-old aerospace and defense manufacturing base, now extending into robotics and automated production.
Consumer
Products and apps built directly for individual consumers, drawing on Southern California's media and entertainment base.
Healthcare
Health tech, medical devices, and healthcare services, backed by a decades-old biotech research base and a deep bench of clinical and diagnostics startups.
Fintech
Financial technology: payments, banking, investing, and financial infrastructure.
Education
Education technology and learning platforms built across Southern California.
Real Estate & Construction
Property technology, construction tech, and real estate services.
Series A$9.5MMade using only clinically-backed ingredients in their most bioavailable formats. | Fertility, Prenatal, Postnatal, Perimenopause & Beyond
Series A$9.2MPermissionless Labs is an AI lab providing high-throughput inference, durable model storage, and custom fine-tuning — frontier infrastructure you can access without gatekeepers or lock-in.
Series A$9.1M
Series A$8.8MSTYNGR makes in-game audio seamless with easy SDK integration and flexible monetization options. Elevate your game with fully licensed music from major labels and indie artists.
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Series A$8.5MA piezoacoustic platform technology that makes the world’s batteries last longer, charge faster, and be safer.
Series A$8.5MSmallMolecules.com provides the largest listing of commercially-available small molecule products, assisting researchers to find the products they need to drive discovery.