OS Fund
OS Fund is a Seed, Pre-Seed venture capital firm based in San Diego, CA investing in Healthcare, AI / ML, Deep Tech. The firm typically writes $1.0M–$3.0M checks and has 2 portfolio companies in our records.
- Check size
- $1.0M–$3.0M
- Portfolio
- 2 companies on record
- Partners
- 4 listed
- Stage
- Seed, Pre-Seed
- Sectors
- Healthcare, AI / ML, Deep Tech
- HQ
- San Diego, CA
- AUM
- Not in our records
Last verified: 2026-05-22
Seed, Pre-Seed
$1.0M – $3.0M
2+ companies
4 partners
Investment Thesis
The OS Fund backs breakthrough ventures using deep tech and life sciences to solve humanity's biggest challenges.
How OS Fund invests
OS Fund is a vc firm based in San Diego, CA. The firm invests at the Seed, Pre-Seed stages, with a focus on Healthcare, AI / ML, Deep Tech.
OS Fund typically writes checks of $1.0M–$3.0M per investment.
OS Fund has backed 2 companies in our records, including Ginkgo Bioworks, Synthego.
Partners & Team
Industry Focus
Invests In
Portfolio Companies (2)
Other
Ginkgo Bioworks
Synthego
- •Raising at Seed, Pre-Seed? You're squarely in their sweet spot.
- •Lead with your fit in Healthcare, AI / ML, Deep Tech — the sectors they actively back.
- •Size your ask to their typical $1.0M – $3.0M check.
- •cold outreach ok
- •Address your outreach to a specific partner, such as Bryan Johnson, Founder & General Partner.
- •A warm introduction beats a cold email. Get matched and request an intro.
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