Key facts
- Nucleus Security’s last known valuation is $175.0M (Jan 2026).
- It has raised $66.5M across 2 recorded rounds; the latest was Early Stage VC ($20.3M) in Mar 2022.
- Notable investors include Lead Edge Capital, In-Q-Tel, Arthur Ventures, Other People's Capital, Delta-v Capital — 8 tracked in total.
- Nucleus Security has filed 2 Form Ds with the SEC since 2021, most recently Mar 2022 ($20.3M sold to 3 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 2 rounds
- ·The complete investor list — 8 names
- ·Watchlist + deal alerts for Nucleus Security
Funding rounds
2 roundsAbout Nucleus Security
Developer of vulnerability management software designed to be the single source of truth for all vulnerability and security-finding information in an enterprise. The company's enterprise application integrates scanning tools, asset inventories, issue trackers, ticketing systems, SIEMs (security information and event management), and more to automate and orchestrate the vulnerability remediation process, enabling enterprises and organizations to make risk decisions and mitigate vulnerabilities at scale.
- Sector
- Information Technology
- HQ
- Sarasota, FL, United States
- Founded
- 2018
- Employees
- 110
- Website
- nucleussec.com/
- Ownership
- Privately Held (backing)
Nucleus Security 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 Nucleus Security 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 Nucleus Security in its N-PORT filings yet. We sweep new filings monthly.