S3
Section 32
San Diego, California, United StatesFounded 2017
Section 32 (now S32) is a venture capital firm that invests in technology companies across all stages, with a particular focus on frontier technology, healthcare, and AI/ML. The firm's strategy involves identifying innovative solutions to complex problems, providing strategic guidance and operational support, and fostering long-term partnerships with its portfolio companies.
They made 1 investments in the last 12 months. Average disclosed round size is $78.0M (across 44 rounds with reported amounts).
Portfolio
45
Fund Size
$1.8B
Top Stage
Series B
Last 12 Mo
1
Team
Bill Maris
Venture Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
45 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Endor Labs | Series B | $93M | Apr 2025 |
| EEma | Seed | $25M | Mar 2024 |
| Endor Labs | Series A | $70M | Aug 2023 |
 Forward Networks | Series D | $50M | Jan 2023 |
 MedCrypt, Inc. | Series B | $25M | Nov 2022 |
 Stairwell | Series B | $45M | Oct 2022 |
 Spectral | Series B | $23M | Aug 2022 |
 Inworld AI | Series A | $50M | Aug 2022 |
 Parallel Finance | Growth | $5M | Apr 2022 |
 Cohere | Series B | $125M | Feb 2022 |
| OONI | Series B | $75M | Jan 2022 |
 Freenome | Series D | $300M | Dec 2021 |
 MedArrive | Series A | $25M | Nov 2021 |
 Arbor Biotechnologies Inc | Series B | $215M | Nov 2021 |
 Mekonos | Series A | $25M | Nov 2021 |
 ScienceIO | Seed | $8M | Oct 2021 |
 Gretel AI | Series B | $50M | Oct 2021 |
 Wise Systems | Series C | $50M | Oct 2021 |
 TrialSpark | Series C | $156M | Sep 2021 |
| Cohere | Series A | $40M | Sep 2021 |
| FFaro Health Inc. | Series A | $15M | Jun 2021 |
| CC2i Genomics | Series B | $100M | Apr 2021 |
 Legacy | Series A | $10M | Apr 2021 |
| MMeatable | Series B | $47M | Mar 2021 |
 Glympse Bio | Series B | $46.7M | Jul 2020 |
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Top Co-Investors
Andreessen Horowitz8 shared
GV (Google Ventures)6 shared
ARCH Venture Partners5 shared
Casdin Capital5 shared
Polaris Venture Partners4 shared
Index Ventures4 shared
Perceptive Advisors3 shared
RA Capital Management3 shared
Kaiser Permanente Ventures3 shared
Sands Capital3 shared
Radical Ventures3 shared
Coatue Management3 shared
Bain Capital Ventures3 shared
T. Rowe Price3 shared
Gradient Ventures3 shared
OrbiMed2 shared
Domain Associates2 shared
Janus Henderson Investors2 shared
T. Rowe Price Associates, Inc.2 shared
Logos Capital2 shared
Last updated: 13 March 2026