Quick facts:
HQ: El Segundo, CA, United States
Funding:
$25M · Debt · May 2026
Top Deep Tech Startups in California
This list has 846 startups and was last updated on Oct 15, 2026. 201 of them are hiring right now. Biggest hubs: San Francisco (704), Los Angeles (79), and San Diego (7). Largest teams: DoorDash, GrubMarket, and Instacart. Latest round: Circularity Fuels raised $8.79M (Oct 14, 2026).
846 startupsPage 17 of 24
Quick facts:
HQ: San Francisco, CA, United States
Incorporated: 2023
Funding:
$21M · Equity · Mar 2026
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HQ: Solana Beach, CA, United States
Funding:
$18.1M · Equity · Oct 2026
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HQ: San Jose, CA, United States
Funding:
$16.1M · Debt · Jan 2026
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HQ: Scotts Valley, CA, United States
Funding:
$15M · Equity · May 2026
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HQ: Costa Mesa, CA, United States
Funding:
$10M · Equity · Apr 2026
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HQ: Redwood City, CA, United States
Incorporated: 2024
Funding:
$9.94M · Equity · May 2026
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HQ: Dublin, CA, United States
Funding:
$9.35M · Equity · Mar 2026
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HQ: Lathrop, CA, United States
Funding:
$9M · Equity · Mar 2026
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HQ: San Francisco, CA, United States
Incorporated: 2024
Funding:
$8.81M · Equity · Jan 2026
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HQ: Redwood City, CA, United States
Incorporated: 2023
Funding:
$8.79M · Equity · Oct 2026
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HQ: Sunnyvale, CA, United States
Funding:
$8.4M · Equity · Feb 2026
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HQ: Los Angeles, CA, United States
Funding:
$7.28M · Debt · Mar 2026
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HQ: San Jose, CA, United States
Incorporated: 2025
Funding:
$7.25M · Equity · Mar 2026
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HQ: Morgan Hill, CA, United States
Funding:
$6.7M · Equity · Oct 2026
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HQ: Fullerton, CA, United States
Incorporated: 2024
Funding:
$6.28M · SAFE · Mar 2026
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HQ: San Francisco, CA, United States
Incorporated: 2023
Funding:
$6.15M · Equity · Feb 2026
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HQ: San Francisco, CA, United States
Incorporated: 2025
Funding:
$6.02M · Equity · Apr 2026
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HQ: San Francisco, CA, United States
Incorporated: 2026
Funding:
$5.5M · Equity · Jan 2026
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HQ: Del Mar, CA, United States
Incorporated: 2023
Funding:
$4.72M · Equity · Jun 2026
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HQ: Chino Hills, CA, United States
Incorporated: 2023
Funding:
$4.28M · Equity · May 2026
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HQ: Monrovia, CA, United States
Incorporated: 2024
Funding:
$4.24M · Debt · Mar 2026
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HQ: San Fernando, CA, United States
Funding:
$4M · Equity · Sep 2026
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HQ: Redondo Beach, CA, United States
Incorporated: 2022
Funding:
$4M · Equity · Apr 2026
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HQ: Rohnert Park, CA, United States
Funding:
$3.51M · Equity · Feb 2026
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HQ: Cerritos, CA, United States
Funding:
$3.4M · Debt · Jan 2026
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HQ: Rancho Cucamonga, CA, United States
Incorporated: 2022
Funding:
$3.03M · Equity · Feb 2026
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HQ: Redwood City, CA, United States
Funding:
$2.64M · Equity · May 2026
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HQ: Sacramento, CA, United States
Incorporated: 2022
Funding:
$2.55M · SAFE · Apr 2026
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HQ: Los Angeles, CA, United States
Funding:
$2.3M · Equity · Sep 2026
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HQ: San Francisco, CA, United States
Incorporated: 2022
Funding:
$1.72M · Equity · Oct 2026
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HQ: Ventura, CA, United States
Funding:
$1.45M · Equity · Jan 2026
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HQ: Redwood City, CA, United States
Funding:
$1.14M · Debt · Jan 2026
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HQ: San Francisco, CA, United States
Incorporated: 2026
Funding:
$1M · Equity · Jun 2026
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HQ: Emeryville, CA, United States
Incorporated: 2025
Funding:
$1M · SAFE · May 2026
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HQ: Redondo Beach, CA, United States
Incorporated: 2024
Funding:
$1M · Options · Mar 2026