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$18.9MCo-founded by Rodrigo Diez (CEO) and Facundo Jorge (CTO), who build SpaceVPX computer systems for large satellites.
Series A$18.8MFinOps governance for platform teams. Prevent cloud waste and budget overruns before every deploy.
Series A$17.8MFounded by Gaurav Sant, a UCLA professor who directs the university's Institute for Carbon Management.
Series A$17.6MPasses allows creators to monetize their content and build direct relationships with their audience through subscriptions, messaging, and exclusive content.
Series A$17.4MFreestyle makes Skin Shield and BambooTek diapers. Founded by parents, Freestyle is focused on technology-driven babycare for parents who want premium performance without the markup. Skin Shield diapers are TCF (Total Chlorine Free) and EWG Verified.
Series A$17.0MThe integrated platform for the electromagnetic spectrum. One platform for RF design, production, and network operations.
Series A$16.6M