Substrate
San Francisco, United States · Founded 2023 · $100.0M raised
- Headquarters
- San Francisco, California
- Employees
- 51–200
- Founded
- 2023
- Business Model
- B2B
- Website
- substrate.com
- Total Funding
- $100.0M
- Last Round
- $100.0M SeedOct 2025
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
About
Substrate is building what it describes as the world's most advanced AI-designed semiconductor foundry, using advanced X-ray lithography to reduce fabrication costs and extend Moore's Law for chipmakers. Based in San Francisco, the company aims to supply America's AI industry with domestically fabricated chips, arguing the U.S. must build an independent, top-to-bottom American semiconductor stack rather than depend on foreign wafer fabrication capability. Substrate positions itself as a next-generation foundry serving chip designers rather than as an end-product AI company.
Summary
Substrate is an Energy company based in San Francisco, United States, founded in 2023. It has raised $100.0M in total across 1 round, most recently a $100.0M Seed round in Oct 2025. Investors include Valor Equity Partners, Founders Fund and General Catalyst.
Tech & App Stack
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Funding History
Oct 2025
Investors
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