Phosphorus Cybersecurity is an embedded operational technology security platform, headquartered in Nashville, United States, founded in 2017.
| Date | Round | Amount | Investors |
|---|---|---|---|
| 2025-04-28 | Growth Stage | Undisclosed | Neva SGR |
| 2023-12-18 | Series A | $27M | Evolution Equity Partners |
| 2022-02-21 | Series A | $38M | MassMutual Ventures, SYN Ventures, Atypical Ventures |
| 2017-08-01 | Seed | $5M | Atypical Ventures, General Advance |
Phosphorus Cybersecurity was acquired by Dragos (2026-06-01).
Data from The Signal by Return on Security — cybersecurity funding, M&A activity, and company intelligence.