AICybersecurityDeveloper ToolsEnterprise SoftwareHealthcareDefense & SpaceRobotics & AutomationManufacturingClimate & EnergyConsumerBiotech & Life SciencesHardware & Semiconductors
Operator Partners is a self-funded venture capital firm based in New York, operating with the partners' own capital and no outside investors. The firm invests in technology companies from inception through Series B and does not lead rounds or take board seats, instead offering flexible on-demand operator support to founders.
Deal activity increased 175% year-over-year (11 deals in the last 12 months). Their most common stage is series-a (43% of deals). Average disclosed round size is $18.5M (across 101 rounds with reported amounts).
Portfolio
88
Fund Size
—
Top Stage
Series A
Last 12 Mo
11
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
111 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Quartermaster | Series A | $43M | May 2026 |
 Nourish | Series C | $100M | May 2026 |
 Blossom Health | Series A | $20M | Mar 2026 |
| VVoomi | Series A | $10M | Mar 2026 |
 Voomi Supply | Series A | $10M | Mar 2026 |
 Evervault | Series B | $25M | Mar 2026 |
 Apella Technology | Series B | $80M | Jan 2026 |
| Voomi Supply | Series A | $10M | Jan 2026 |
 Sandstone | Seed | $30M | Jan 2026 |
 Sandstone | Series A | — | Jan 2026 |
 Footprint | Series B | $25M | Jan 2026 |
| Blossom Health | Seed | $20M | Jan 2026 |
 Estuary | Series A | $17M | Oct 2025 |
 Serval | Series A | $47M | Oct 2025 |
 Serval | Series A | $47M | Oct 2025 |
 Birches Health | Series A | $20M | Sep 2025 |
 Lorikeet | Series A | $35M | Aug 2025 |
 Composio | Series A | $29M | Jul 2025 |
 1Fort | Series A | — | Apr 2025 |
 Predoc | Series A | $30M | Jan 2025 |
 Courtyard | Series A | $30M | Jan 2025 |
| Composio | Series A | $25M | Jan 2025 |
 11x | Series A | $24M | Sep 2024 |
 Pomelo Care | Series B | $46M | Jun 2024 |
 Whoosh | Series A | $10.3M | Jun 2024 |
Page 1 of 5
Top Co-Investors
BoxGroup15 shared
SV Angel14 shared
Y Combinator12 shared
Index Ventures11 shared
First Round Capital10 shared
General Catalyst7 shared
Alumni Ventures7 shared
Tiger Global Management, LLC6 shared
Insight Partners5 shared
Lerer Hippeau5 shared
Bessemer Venture Partners5 shared
Founders Fund5 shared
Inspired Capital5 shared
Lightspeed Venture Partners5 shared
QED Investors5 shared
Correlation Ventures4 shared
Quiet Capital4 shared
8VC4 shared
Threshold Ventures4 shared
Thrive Capital4 shared
Last updated: 7 October 2026