Key facts
- Phosphorus’s last known valuation is $160.0M (Dec 2023).
- It has raised $56.3M; the latest was Later Stage VC in Apr 2025.
- Notable investors include Service Provider Capital, MassMutual Ventures, Evolution Equity Partners, Rsquared, SYN Ventures — 13 tracked in total.
- Status: Privately Held (backing).
- ·The complete investor list — 13 names
- ·Watchlist + deal alerts for Phosphorus
- ·The full record, as it builds
Funding rounds
No funding rounds for Phosphorus are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.
About Phosphorus
Developer of a cyber-physical systems platform designed to deliver a proactive approach to security management and breach prevention. The company offers a unified xIoT security management platform that provides discovery, risk assessment, continuous monitoring, and automated mitigation, enabling industries to manage the security of connected devices effectively and accurately.
- Sector
- Information Technology
- HQ
- Nashville, TN, United States
- Founded
- 2017
- Employees
- 60
- Website
- phosphorus.io/
- Ownership
- Privately Held (backing)
Phosphorus doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Phosphorus shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Phosphorus in its N-PORT filings yet. We sweep new filings monthly.