Southern California's
Startup Directory
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Early StageCosight builds always-connected telehealth devices — cellular- and satellite-ready — for video consultations and remote patient monitoring, with real-time translation and integration with FDA-approved medical devices, aimed at hospitals and healthcare providers.
Pre-Seed$250KBetter, faster tech vendor research
Series D$833.1MWe provide efficient in-space mobility that moves payloads from low Earth orbit to any destination. Our vehicles deliver rapid, reliable access, reducing costs and timelines to make space operations feasible for commercial, government, and scientific missions.
Series C$80.1MOutpace AI-driven attacks. Unify Digital Risk Protection, Human Risk Management, and Email Security to stop digital threats before they scale, empower your teams to lead your defense, and scale your SOC with agentic AI.
EXPLORE BY CITY
WHAT SOUTHERN CALIFORNIA BUILDS
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.
$1.0M
$1.0MArtist-first rights, distribution, records, news, and contact in one public home.
Operates as SON-AERO, an aircraft-parts manufacturer originally founded in 1955 and placed under new ownership in 2018 -- a legacy manufacturer rather than a new startup.
Series A$1.0MKAI Media is the Next Generation Fan-Centric Entertainment Company for All K-pop Fans Worldwide.
Seed$1.0MMakes Baila tequila-based spirits; founded by Jason Castellucci, who is also a co-founder of Cierto Tequila.
Mansa Micro is linked to Mansa, the LA-based streaming/microdrama platform co-founded by actor-filmmakers David Oyelowo and Nate Parker and backed by MaC Venture Capital.
$1.0MCasual sports bar with big screens, golf simulators, full drink menu, and hearty pub fare for groups and game nights.
Seed$1.0MWe are on a mission to change the path to power and influence in a tech-enabled world by launching a generation of diverse tech talent into the tech ecosystem.