Stonemill Ventures was a venture capital firm established in 2018 that focused its investments on seed-stage cybersecurity companies, primarily within the Washington, D.C. metro area. The firm aimed to support early-stage cyber companies.
100% of their portfolio is in Cybersecurity. Their most common stage is seed (50% of deals).
Portfolio
2
Fund Size
—
Top Stage
Seed
Last 12 Mo
0
Portfolio Breakdown
Stage Distribution
Portfolio
2 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 LimaCharlie | Seed | $5.5M | May 2022 |
| TTodyl | Series A | $28M | Mar 2022 |
Top Co-Investors
Susa Ventures1 shared
Long Journey Ventures1 shared
Sands Capital1 shared
Lytical Ventures1 shared
Anthos Capital1 shared
TechOperators1 shared
Last updated: 28 April 2026