AICybersecurityFintechEnterprise SoftwareDeveloper ToolsData & AnalyticsInfrastructure & CloudDefense & Space
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.
Average disclosed round size is $31.6M (across 112 rounds with reported amounts).
Portfolio
94
Fund Size
$275M
Top Stage
Series A
Last 12 Mo
15
Team
DG
David G. Cheng
General Partner
JC
John Cowgill
General Partner
GS
Greg Sands
Founder and Managing Director
AC
Amy Cheetham
Partner
JS
Joe Sullivan
Venture Partner
MS
Mark Selcow
Venture Partner
MM
Michelle McHargue
Partner
NK
Nancy Katz
Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
122 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| OOnos Health | Series A | $17M | Aug 2026 |
| SSmack | Series B | $61M | Aug 2026 |
 Self Inspection | Unknown | $10M | Jul 2026 |
 Natter | Series A | — | Apr 2026 |
 Shepherd | Series B | $42M | Mar 2026 |
 Manifold Security | Seed | $8M | Mar 2026 |
 Smack | Unknown | — | Mar 2026 |
| SSmack | Seed | — | Mar 2026 |
 Tenna Systems | Seed | $13.5M | Feb 2026 |
 Ivo | Series B | $55M | Jan 2026 |
 Marble Health | Series A | $15.5M | Jan 2026 |
 Aquabyte | Unknown | — | Dec 2025 |
 Spectral Compute | Seed | $6M | Nov 2025 |
| Marble Health | Series A | $15.5M | Oct 2025 |
 TrueMeter | Seed | $4M | Sep 2025 |
 Pathwork | Seed | $3.5M | Sep 2025 |
 Empirical | Seed | — | Jul 2025 |
 Muon Space | Series B | $146M | Jun 2025 |
 Rerun | Seed | $17M | Mar 2025 |
 SGNL | Series A | $30M | Feb 2025 |
| Self Inspection | Unknown | $3M | Feb 2025 |
| Ivo | Series A | $16M | Feb 2025 |
 Highnote | Unknown | $90M | Jan 2025 |
 Highnote | Unknown | $90M | Jan 2025 |
| EEcoTrove | Seed | $4M | Jan 2025 |
Page 1 of 5
Top Co-Investors
Salesforce Ventures11 shared
Icon Ventures9 shared
Sapphire Ventures8 shared
Spark Capital6 shared
Scale Venture Partners6 shared
General Catalyst5 shared
Thoma Bravo5 shared
Blackbird5 shared
Union Grove Venture Partners5 shared
Sanabil Investments5 shared
Riverwood Capital5 shared
Dell Technologies Capital5 shared
Canaan Partners5 shared
500 Global4 shared
Y Combinator4 shared
ClearSky4 shared
Andreessen Horowitz4 shared
Uncork Capital4 shared
Intact Ventures4 shared
Radical Ventures4 shared
Last updated: 9 September 2026