What they do:
Accelerating scaled plastics with additive technologies
Quick facts:
HQ: El Segundo, CA, United States
Top Manufacturing Startups in California
This list has 266 startups and was last updated on Oct 15, 2026. 68 of them are hiring right now. Biggest hubs: San Francisco (223), Los Angeles (22), and San Diego (4). Largest teams: Relativity Space, Bellabeat, and Human Archive. Latest round: CulinaryOne raised $200K (Oct 8, 2026).
266 startupsPage 6 of 8
What they do:
a phone where AI is the interface
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HQ: San Francisco, CA, United States
What they do:
The pit crew for machines and robots.
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HQ: San Francisco, CA, United States
What they do:
Building and Protecting an Exciting Future
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HQ: Los Angeles, CA, United States
What they do:
AI for the physical world
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HQ: Los Angeles, CA, United States
What they do:
A robotics intelligence system for metal fabrication
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HQ: San Francisco, CA, United States
What they do:
Accelerated Physics Kernels for Computational Engineering
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HQ: San Francisco, CA, United States
What they do:
AI agent that manages manufacturing operations over text
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HQ: San Francisco, CA, United States
What they do:
Camera-free AI glasses. Your AI, out in the world.
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HQ: San Francisco, CA, United States
What they do:
Robots to maintain and assemble data centers
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HQ: San Francisco, CA, United States
What they do:
Force-sensing wristband for training robotic AI
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HQ: San Francisco, CA, United States
What they do:
Actuators for Physical AI
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HQ: San Francisco, CA, United States
What they do:
General Purpose Robots
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HQ: San Francisco, CA, United States
YC F25Early stage
What they do:
AI Employee for Manufacturing Operations
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HQ: San Francisco, CA, United States
YC X26Early stage
What they do:
Teaching AI to Design Chips
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HQ: San Francisco, CA, United States
YC S26Early stage
What they do:
Autonomous Hardware Testing
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HQ: San Francisco, CA, United States
YC S26Early stage
What they do:
Hyperscaling space manufacturing
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HQ: Los Angeles, CA, United States
YC F26Early stage
What they do:
Autonomous CNC factories for faster hardware
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HQ: San Francisco, CA, United States
YC F26Early stage
What they do:
Resin helps engineers design electronics faster and more reliably
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HQ: San Francisco, CA, United States
YC F26Early stage
Quick facts:
HQ: El Segundo, CA, United States
Incorporated: 2024
Funding:
$245M · Equity · May 2026
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HQ: Scotts Valley, CA, United States
Incorporated: 2024
Funding:
$138M · Equity · Feb 2026
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HQ: San Diego, CA, United States
Incorporated: 2025
Funding:
$52.6M · Equity · Mar 2026
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HQ: Davis, CA, United States
Incorporated: 2021
Funding:
$50M · Equity · Feb 2026
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HQ: El Segundo, CA, United States
Funding:
$25M · Debt · May 2026
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HQ: Scotts Valley, CA, United States
Funding:
$15M · 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 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: 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: Santa Monica, CA, United States
Funding:
$877K · Equity · Oct 2026
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HQ: San Diego, CA, United States
Incorporated: 2023
Funding:
$240K · Debt · Oct 2026
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HQ: Lincoln, CA, United States
Incorporated: 2023
Funding:
$200K · Equity · Oct 2026
Proxy
Acquired
What they do:
Smart ring digital wallet
Quick facts:
HQ: San Francisco, CA, United States