Southern California's
Startup Directory
Series B$84.3MRebuilding healthcare with AI at the core
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.
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$2.4M
Series A$2.4MThe Future of Music Should Feel Human
Series A$2.3MCo-founded in 2017 by Paul Kim, an Army veteran, the teletherapy company raised a $13M Series A led by Volition Capital.
Co-founded by Caltech chemist Brian Stoltz and UCLA oncologist Dennis Slamon, known for co-discovering the HER2-targeted breast cancer therapy Herceptin; the company is backed by Kairos Ventures.
Formerly operated Gamma Knife stereotactic radiosurgery centers; the publicly traded company (OTC: USNU) renamed itself Elite Health Systems Inc. in September 2024.
Series A$2.3MFounded by Thomas Estok and Dr. Mohamed Ragab, the cancer-drug developer has raised about $59M from investors including Deerfield Management and i&i Biotech Fund.
Growthsayer was founded by Phillip Geltman, a San Diego-based supply chain specialist who originally built the platform to optimize cannabis industry supply chains before expanding into broader retail demand planning.
Series A$2.1MTransforming medicine through cellular therapies that restore, regenerate, and repair tissues and organs