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.
Does business as ChipAgents, an agentic AI chip-design platform founded by CEO William Wang; has raised $134M in funding from investors including Bessemer Venture Partners and Matter Venture Partners.
Series A$73.6MWe’re an integrated photonics company in California building the light engines that power the next era of quantum technology — from advanced computing to precision sensing.
Gene therapy company that emerged from stealth in June 2023 with a $51M Series A co-led by Westlake Village BioPartners, developing AAV-based genetic medicines for muscle and heart disease.
Series A$63.3MCo-founded by biomedical engineer Robert S. Hillman, PhD; developing devices/therapies to get STEMI heart-attack patients to treatment with open coronary arteries, and has raised $58.4M.
Series A$60.8MSan Diego biologics company led by CEO Krisztina Zsebo, PhD, developing vascular biologic therapies for ischemic stroke and acute cardiovascular disease.
Series A$60.3MKudos® is the recognition and rewards platform designed to fit your unique workplace culture.
Series A$55.5MBig Shot Pictures is a next-generation studio building global franchises, founded by Brian Robbins.
Series A$55.0MPraesidium applies an owner-oriented, private equity approach to investing in the public markets. Praesidium manages long-term capital for a select group of institutional investors.