Company directory
Y Combinator startups in Southern California: Los Angeles, San Diego and Orange County.
Y Combinator's public directory lists 225 companies with a Southern California location, each counted once by the first Southern California city it lists: 194 in the Los Angeles area, 22 in the San Diego area, 6 in Orange County and 3 in the Inland Empire. Counting every city listed, 9 name an Orange County city.
Y Combinator companies in Southern California
225 companies in this view
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- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USATeam size 6
- Status, as YC lists it
- Active
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- Los Angeles, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- Healthcare · Medical Devices
- Location, as listed
- Los Angeles, CA, USATeam size 6
- Status, as YC lists it
- Active
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USATeam size 11
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 9
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- Los Angeles, CA, USATeam size 1,000
- Status, as YC lists it
- Active
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USATeam size 11
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Job and Career Services
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 1
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- Los Angeles, CA, USATeam size 8
- Status, as YC lists it
- Inactive
- Industry
- Fintech
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Fintech · Consumer Finance
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 29
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- New York City, NY, USA; Los Angeles, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Acquired
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Consumer · Content
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 10
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USATeam size 4
- Status, as YC lists it
- Active
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 12
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Newport Beach, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- Los Angeles, CA, USA; Huntington Beach, CA, USATeam size 10
- Status, as YC lists it
- Active
- Industry
- Industrials · Energy
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Consumer · Content
- Location, as listed
- Los Angeles, CA, USA; New York, NY, USA; RemoteTeam size 10
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- Los Angeles, CA, USATeam size 28
- Status, as YC lists it
- Active
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- San Diego, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Infrastructure
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USA; RemoteTeam size 3
- Status, as YC lists it
- Acquired
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 35
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- New York City, NY, USA; Los Angeles, CA, USATeam size 3
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Industrial Bio
- Location, as listed
- San Diego, CA, USATeam size 18
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 5
- Status, as YC lists it
- Active
- Industry
- B2B · Productivity
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Active
- Industry
- Healthcare
- Location, as listed
- San Diego, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Industrials
- Location, as listed
- Los Angeles, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 6,112
- Status, as YC lists it
- PublicYC top company
- Industry
- B2B · Productivity
- Location, as listed
- Carlsbad, CA, USA; San Francisco, CA, USA; RemoteTeam size 7
- Status, as YC lists it
- Active
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USATeam size 7
- Status, as YC lists it
- Active
- Industry
- Real Estate and Construction · Construction
- Location, as listed
- Los Angeles, CA, USATeam size 104
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 18
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Social
- Location, as listed
- Los Angeles, CA, USATeam size 4
- Status, as YC lists it
- Acquired
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- Los Angeles, CA, USA
- Status, as YC lists it
- Acquired
- Industry
- Real Estate and Construction · Construction
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 5
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 1
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Los Angeles, CA, USATeam size 12
- Status, as YC lists it
- Inactive
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USATeam size 15
- Status, as YC lists it
- Acquired
- Industry
- Healthcare
- Location, as listed
- San Diego, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 62
- Status, as YC lists it
- Acquired
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USA; RemoteTeam size 9
- Status, as YC lists it
- Acquired
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Healthcare · Therapeutics
- Location, as listed
- Irvine, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- B2B · Productivity
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USATeam size 7
- Status, as YC lists it
- Inactive
- Industry
- B2B · Operations
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 12
- Status, as YC lists it
- Active
- Industry
- Consumer · Gaming
- Location, as listed
- Los Angeles, CA, USATeam size 15
- Status, as YC lists it
- Acquired
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 14
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Gaming
- Location, as listed
- Los Angeles, CA, USA; Newport Beach, CA, USATeam size 64
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Operations
- Location, as listed
- Temecula, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USA
- Status, as YC lists it
- Active
- Industry
- Healthcare
- Location, as listed
- Carlsbad, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- Fintech · Consumer Finance
- Location, as listed
- Los Angeles, CA, USA; Seoul, Seoul, South KoreaTeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Home and Personal
- Location, as listed
- Los Angeles, CA, USATeam size 30
- Status, as YC lists it
- Active
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- Los Angeles, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 48
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Diagnostics
- Location, as listed
- Los Angeles, CA, USATeam size 5
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 5
- Status, as YC lists it
- Active
- Industry
- Consumer · Gaming
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USATeam size 5
- Status, as YC lists it
- Inactive
- Industry
- B2B · Productivity
- Location, as listed
- Los Angeles, CA, USATeam size 12
- Status, as YC lists it
- Active
- Industry
- Industrials · Climate
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 6
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USATeam size 1,600
- Status, as YC lists it
- ActiveYC top company
- Industry
- Fintech
- Location, as listed
- Los Angeles, CA, USATeam size 8
- Status, as YC lists it
- Active
- Industry
- Consumer · Content
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Retail
- Location, as listed
- Los Angeles, CA, USA
- Status, as YC lists it
- Active
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Carlsbad, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 50
- Status, as YC lists it
- Active
- Industry
- B2B · Retail
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Los Angeles, CA, USATeam size 1
- Status, as YC lists it
- Inactive
- Industry
- Real Estate and Construction · Housing and Real Estate
- Location, as listed
- Los Angeles, CA, USATeam size 14
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USATeam size 100
- Status, as YC lists it
- ActiveYC top company
- Industry
- Industrials · Defense
- Location, as listed
- Los Angeles, CA, USATeam size 6
- Status, as YC lists it
- Active
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USATeam size 55
- Status, as YC lists it
- Active
- Industry
- Industrials · Defense
- Location, as listed
- Los Angeles, CA, USATeam size 50
- Status, as YC lists it
- Active
- Industry
- Healthcare · Medical Devices
- Location, as listed
- Los Angeles, CA, USATeam size 11
- Status, as YC lists it
- Active
- Industry
- Industrials · Climate
- Location, as listed
- Los Angeles, CA, USATeam size 20
- Status, as YC lists it
- Active
- Industry
- B2B · Finance and Accounting
- Location, as listed
- San Francisco, CA, USA; Los Angeles, CA, USA; RemoteTeam size 250
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Diego, CA, USA; Kilauea, HI, USA; RemoteTeam size 1
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Diego, CA, USATeam size 4
- Status, as YC lists it
- Acquired
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 28
- Status, as YC lists it
- Active
- Industry
- Fintech · Consumer Finance
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USATeam size 8
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 9
- Status, as YC lists it
- Active
- Industry
- B2B · Recruiting and Talent
- Location, as listed
- San Francisco, CA, USA; Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Education
- Location, as listed
- Los Angeles, CA, USATeam size 11
- Status, as YC lists it
- Active
- Industry
- B2B · Finance and Accounting
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USA; Remote
- Status, as YC lists it
- Inactive
- Industry
- Fintech · Credit and Lending
- Location, as listed
- Los Angeles, CA, USATeam size 40
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USATeam size 11
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B
- Location, as listed
- Irvine, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- Consumer · Consumer Electronics
- Location, as listed
- Los Angeles, CA, USA; Pasadena, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Active
- Industry
- Consumer · Home and Personal
- Location, as listed
- San Diego, CA, USATeam size 150
- Status, as YC lists it
- Acquired
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 24
- Status, as YC lists it
- Active
- Industry
- Education
- Location, as listed
- Los Angeles, CA, USA; Berkeley, CA, USATeam size 1
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Gaming
- Location, as listed
- Los Angeles, CA, USATeam size 7
- Status, as YC lists it
- Active
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USATeam size 10
- Status, as YC lists it
- Active
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- San Diego, CA, USA; RemoteTeam size 9
- Status, as YC lists it
- Inactive
- Industry
- Consumer
- Location, as listed
- San Francisco, CA, USA; Los Angeles, CA, USA; RemoteTeam size 3
- Status, as YC lists it
- Active
- Industry
- B2B · Marketing
- Location, as listed
- San Francisco, CA, USA; Santa Monica, CA, USATeam size 11
- Status, as YC lists it
- Inactive
- Industry
- Fintech
- Location, as listed
- Los Angeles, CA, USA; Miami, FL, USA; RemoteTeam size 7
- Status, as YC lists it
- Active
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Ontario, CA, USA; RemoteTeam size 6
- Status, as YC lists it
- Active
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USA; New York, NY, USATeam size 4
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Los Angeles, CA, USATeam size 7
- Status, as YC lists it
- Active
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 67
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Consumer Electronics
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Transportation Services
- Location, as listed
- Los Angeles, CA, USATeam size 18
- Status, as YC lists it
- Active
- Industry
- Healthcare · Medical Devices
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 200
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- San Diego, CA, USATeam size 16
- Status, as YC lists it
- Active
- Industry
- Education
- Location, as listed
- Los Angeles, CA, USATeam size 9
- Status, as YC lists it
- Inactive
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 19
- Status, as YC lists it
- Active
- Industry
- B2B · Security
- Location, as listed
- Los Angeles, CA, USATeam size 5
- Status, as YC lists it
- Active
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USATeam size 30
- Status, as YC lists it
- Active
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 7
- Status, as YC lists it
- Active
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- Los Angeles, CA, USA; Stockholm, Stockholm County, SwedenTeam size 6
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Energy
- Location, as listed
- Los Angeles, CA, USATeam size 4
- Status, as YC lists it
- Active
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 9
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 11
- Status, as YC lists it
- Active
- Industry
- Real Estate and Construction · Housing and Real Estate
- Location, as listed
- Los Angeles, CA, USATeam size 48
- Status, as YC lists it
- Acquired
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 1
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 10
- Status, as YC lists it
- Active
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Diego, CA, USATeam size 4
- Status, as YC lists it
- Active
- Industry
- Industrials · Drones
- Location, as listed
- Los Angeles, CA, USATeam size 4
- Status, as YC lists it
- Active
- Industry
- Consumer · Home and Personal
- Location, as listed
- New York City, NY, USA; Los Angeles, CA, USATeam size 1
- Status, as YC lists it
- Inactive
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Fintech · Consumer Finance
- Location, as listed
- San Francisco, CA, USA; Los Angeles, CA, USA; RemoteTeam size 68
- Status, as YC lists it
- Active
- Industry
- Education
- Location, as listed
- Los Angeles, CA, USATeam size 350
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USATeam size 48
- Status, as YC lists it
- Active
- Industry
- Real Estate and Construction
- Location, as listed
- Los Angeles, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Los Angeles, CA, USATeam size 11
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Diego, CA, USATeam size 6
- Status, as YC lists it
- Active
- Industry
- Industrials · Agriculture
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 65
- Status, as YC lists it
- Active
- Industry
- B2B · Infrastructure
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USATeam size 44
- Status, as YC lists it
- Active
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 20
- Status, as YC lists it
- Active
- Industry
- Consumer · Social
- Location, as listed
- San Diego, CA, USATeam size 5
- Status, as YC lists it
- Active
- Industry
- B2B · Productivity
- Location, as listed
- Marina del Rey, CA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Los Angeles, CA, USATeam size 47
- Status, as YC lists it
- Active
- Industry
- Consumer · Social
- Location, as listed
- Los Angeles, CA, USA
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Culver City, CA, USATeam size 1
- Status, as YC lists it
- Active
- Industry
- Consumer · Home and Personal
- Location, as listed
- Los Angeles, CA, USA; Bethesda, MD, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USATeam size 13
- Status, as YC lists it
- Active
- Industry
- Consumer · Content
- Location, as listed
- Los Angeles, CA, USATeam size 40
- Status, as YC lists it
- Active
- Industry
- Fintech · Consumer Finance
- Location, as listed
- Los Angeles, CA, USATeam size 12
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- San Diego, CA, USATeam size 10
- Status, as YC lists it
- Active
- Industry
- B2B · Sales
- Location, as listed
- San Francisco, CA, USA; Los Angeles, CA, USATeam size 50
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 2,500
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USATeam size 26
- Status, as YC lists it
- Active
- Industry
- B2B · Marketing
- Location, as listed
- San Diego, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Education
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USA; RemoteTeam size 11
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- New York City, NY, USA; Los Angeles, CA, USA; New York, NY, USA; RemoteTeam size 8
- Status, as YC lists it
- Inactive
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- Boston, MA, USA; Los Angeles, CA, USA; RemoteTeam size 33
- Status, as YC lists it
- Acquired
- Industry
- B2B · Productivity
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Healthcare · Diagnostics
- Location, as listed
- Los Angeles, CA, USATeam size 10
- Status, as YC lists it
- Active
- Industry
- Healthcare · Diagnostics
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 13
- Status, as YC lists it
- Acquired
- Industry
- B2B · Operations
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USATeam size 4
- Status, as YC lists it
- Acquired
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Sydney, NSW, Australia; Torrance, CA, USATeam size 4
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 20
- Status, as YC lists it
- Active
- Industry
- Healthcare · Therapeutics
- Location, as listed
- Ontario, CA, USA; RemoteTeam size 5
- Status, as YC lists it
- Active
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 60
- Status, as YC lists it
- Active
- Industry
- Industrials · Agriculture
- Location, as listed
- Los Angeles, CA, USATeam size 80
- Status, as YC lists it
- Active
- Industry
- B2B · Legal
- Location, as listed
- Los Angeles, CA, USA; Mountain View, CA, USATeam size 60
- Status, as YC lists it
- Acquired
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 1
- Status, as YC lists it
- Active
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- El Segundo, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 12
- Status, as YC lists it
- Active
- Industry
- B2B · Retail
- Location, as listed
- Salt Lake City, UT, USA; San Diego, CA, USA; RemoteTeam size 15
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Los Angeles, CA, USATeam size 51
- Status, as YC lists it
- Acquired
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 5
- Status, as YC lists it
- Active
- Industry
- Industrials · Drones
- Location, as listed
- Los Angeles, CA, USATeam size 9
- Status, as YC lists it
- Active
- Industry
- B2B · Security
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Acquired
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Consumer · Content
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USATeam size 8
- Status, as YC lists it
- Active
- Industry
- Consumer · Social
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Operations
- Location, as listed
- Los Angeles, CA, USATeam size 5
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 18
- Status, as YC lists it
- Acquired
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 10
- Status, as YC lists it
- Active
- Industry
- Consumer · Content
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Active
- Industry
- Consumer · Home and Personal
- Location, as listed
- Los Angeles, CA, USATeam size 28
- Status, as YC lists it
- Active
- Industry
- Consumer · Travel, Leisure and Tourism
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 30
- Status, as YC lists it
- Active
- Industry
- Industrials · Drones
- Location, as listed
- Los Angeles, CA, USATeam size 1
- Status, as YC lists it
- Active
- Industry
- Consumer · Consumer Electronics
- Location, as listed
- Los Angeles, CA, USA; New York, NY, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 8
- Status, as YC lists it
- Active
- Industry
- Healthcare · Industrial Bio
- Location, as listed
- San Diego, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- Fintech · Asset Management
- Location, as listed
- Culver City, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Marketing
- Location, as listed
- Los Angeles, CA, USATeam size 5
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USA; Irvine, CA, USATeam size 15
- Status, as YC lists it
- Active
- Industry
- B2B · Analytics
- Location, as listed
- Los Angeles, CA, USATeam size 14
- Status, as YC lists it
- Inactive
- Industry
- Real Estate and Construction · Housing and Real Estate
- Location, as listed
- Los Angeles, CA, USATeam size 12
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Gaming
- Location, as listed
- Los Angeles, CA, USATeam size 1
- Status, as YC lists it
- Inactive
- Industry
- B2B · Office Management
- Location, as listed
- Los Angeles, CA, USATeam size 150
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Medical Devices
- Location, as listed
- San Clemente, CA, USATeam size 4
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Medical Devices
- Location, as listed
- San Clemente, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Consumer Electronics
- Location, as listed
- Los Angeles, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- Healthcare · Diagnostics
- Location, as listed
- San Diego, CA, USA; Urbana, IL, USATeam size 30
- Status, as YC lists it
- Active
- Industry
- Healthcare · Medical Devices
- Location, as listed
- Irvine, CA, USATeam size 9
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Los Angeles, CA, USATeam size 6
- Status, as YC lists it
- Active
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- Los Angeles, CA, USATeam size 8
- Status, as YC lists it
- Active
- Industry
- B2B · Infrastructure
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USA; RemoteTeam size 3
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Gaming
- Location, as listed
- Los Angeles, CA, USATeam size 3
- Status, as YC lists it
- Active
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 731
- Status, as YC lists it
- ActiveYC top company
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 6
- Status, as YC lists it
- Acquired
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- Los Angeles, CA, USATeam size 12
- Status, as YC lists it
- Active
- Industry
- Consumer
- Location, as listed
- Los Angeles, CA, USATeam size 260
- Status, as YC lists it
- Active
- Industry
- Industrials · Drones
- Location, as listed
- Los Angeles, CA, USA; Santa Monica, CA, USA; RemoteTeam size 200
- Status, as YC lists it
- Active
- Industry
- Industrials · Energy
- Location, as listed
- San Diego, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Infrastructure
- Location, as listed
- Los Angeles, CA, USATeam size 5
- Status, as YC lists it
- Active
- Industry
- Fintech · Payments
- Location, as listed
- San Diego, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Los Angeles, CA, USATeam size 50
- Status, as YC lists it
- Active
How to use this list
- Filter by listed location, batch, industry or status, or search for a company, a city or one of YC's tags.
- Listed location uses two rules. The four areas count each company once, by the first Southern California city it lists. “Any Orange County city listed” also includes companies that list Los Angeles first and an Orange County city later, so it overlaps with the Los Angeles area.
- Each name opens the company's YC profile. The website link goes to the company's own site; we show it only for companies YC lists as active or public, because the domains of closed and acquired companies often lapse or change hands.
- Status is YC's label, not our assessment. Active does not mean funded, growing or looking for suppliers.
- Keep a list as you go. Add to my research saves a company in this browser, and Download my list turns your picks into a spreadsheet.
YC companies by Southern California area
| Area | Companies | How they are counted |
|---|---|---|
| Los Angeles area | 194 | Once each, by the first Southern California city listed |
| San Diego area | 22 | Once each, by the first Southern California city listed |
| Orange County | 6 | Once each, by the first Southern California city listed |
| Inland Empire | 3 | Once each, by the first Southern California city listed |
| All four areas | 225 | Each company once |
| Any Orange County city listed | 9 | Any listed city; overlaps with the rows above |
The 9 companies that list an Orange County city: Asseta (Summer 2013), Entelexo Biotherapeutics (Winter 2021), Korso (Spring 2026), UroDev Medical (Winter 2016), V-Flow Medical (Summer 2021) and Vena Vitals (Summer 2020) list one first, and AstroForge (Winter 2022), FightCamp (Winter 2016) and Turion Space (Summer 2021) list Los Angeles first.
What the list shows
By YC's labels, the 225 companies are 147 active, 34 acquired, 43 inactive and 1 public. The most common industries are B2B (75), Consumer (53), Industrials (39) and Healthcare (31).
They span 40 batches, from Winter 2006 to Fall 2026. The busiest were Summer 2021 (20), Winter 2022 (19) and Winter 2021 (18), and 2021 was the biggest year, with 38 companies. Of the 225, 29 are from Fall 2024 or later, the batches since YC began moving to four a year.
YC flags 4 of them as top companies: Coinbase (Summer 2012), GOAT Group (Winter 2011), Honeylove (Summer 2018) and Whatnot (Winter 2020). Coinbase, the one public company, lists Los Angeles and Remote in YC's directory.
Where marketing fits
A location, a batch or a status says nothing about a company's marketing budget, and this page is research, not a prospect list. If you run a business in the region yourself, our pages on marketing in Los Angeles and SEO in Orange County explain how we work there, and our locations page lists the other areas we serve.
About this data
Each record comes from YC's public startup directory, through the open-source yc-oss mirror of it, pulled on September 13, 2026. A company is on this list when one of the locations it lists is a Southern California city. The Los Angeles area covers cities in Los Angeles and Ventura counties, such as Santa Monica, Culver City, Pasadena and Thousand Oaks; Orange County covers cities such as Irvine, Newport Beach and San Clemente; the San Diego area covers San Diego County, including Carlsbad; and the Inland Empire covers Riverside and San Bernardino counties, including Ontario and Temecula.
We show YC's own industry, location and status labels and none of YC's company descriptions. Companies update their listings, so counts change. If a record is wrong, use Suggest a correction on its row and include a source.
Sources
Checked September 13, 2026. YC updates its directory, so counts and labels change. Mining Wells is not affiliated with Y Combinator.
- Y Combinator: Startup directory: the companies, their batches, status, industry and listed locations
- yc-oss: open-source mirror of YC's directory (pulled September 13, 2026): the snapshot these records come from
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