Costanoa Ventures is an early-stage venture capital firm founded in 2012, leading investments from formation through Series A. The firm focuses on AI-enabled SaaS, AI & data infrastructure, cybersecurity, fintech, and national security companies, providing hands-on support through its BuilderOps team.
Deal activity increased 43% year-over-year (20 deals in the last 12 months). Average disclosed round size is $30.9M (across 191 rounds with reported amounts).
Portfolio
112
Fund Size
$275M
Top Stage
Series A
Last 12 Mo
20
Team
David G. Cheng
General Partner
John Cowgill
General Partner
Greg Sands
Founder and Managing Director
Amy Cheetham
Partner
Joe Sullivan
Venture Partner
Mark Selcow
Venture Partner
Michelle McHargue
Partner
Nancy Katz
Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
| Company | Round | Amount | Date |
|---|---|---|---|
 Onos Health | Series A | $17M | Aug 2026 |
 Muon Space | Series C | $250M | Aug 2026 |
 Smack Technologies | Series B | $61M | Aug 2026 |
 Empirical | Series A | $25M | Jul 2026 |
 Self Inspection | Unknown | $10M | Jul 2026 |
 Natter | Series A | — | Apr 2026 |
 Shepherd | Series B | $42M | Mar 2026 |
 Shepherd | Series B | $42M | Mar 2026 |
 Manifold Security | Seed | $8M | Mar 2026 |
| Smack Technologies | Unknown | — | Mar 2026 |
| Smack Technologies | Seed | — | Mar 2026 |
 Tenna Systems | Seed | $13.5M | Feb 2026 |
 Ivo | Series B | $55M | Jan 2026 |
 Marble Health | Series A | $15.5M | Jan 2026 |
| SSelf Inspection | Unknown | $10M | Jan 2026 |
 Shepherd | Series B | $42M | Jan 2026 |
| Smack Technologies | Series A | $32M | Jan 2026 |
| Empirical | Series A | $25M | Jan 2026 |
 Aquabyte | Seed | $3.5M | Dec 2025 |
 Spectral Compute | Seed | $6M | Nov 2025 |
| Marble Health | Series A | $15.5M | Oct 2025 |
 Basis Theory | Series B | $33M | Oct 2025 |
 Earthmover | Seed | $7.2M | Sep 2025 |
 TrueMeter | Seed | $4M | Sep 2025 |
 Pathwork | Seed | $3.5M | Sep 2025 |
Top Co-Investors
Last updated: 27 September 2026