Nucleus Security key facts
as of Oct 2026- Developer of vulnerability management software designed to be the single source of truth for all vulnerability and security-finding information in an enterprise.
- Nucleus Security is valued at approximately $175.0M as of Oct 2026, set at its later-stage round, Jan 2026; nothing has traded since, per PrivateMarketView’s mark.
- 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).
Valued at $175.0M at its later-stage round, Jan 2026. Nothing has traded since.
- ·Watch Nucleus Security: the Monday email on marks, rounds and moves
Nucleus Security funding rounds
2 roundsNucleus Security valuation
Nucleus Security was valued at $175 million at its later-stage round in Jan 2026. That is the last priced event on record: no secondary trade or institutional fund mark has moved the figure since.
How much has Nucleus Security raised?
Nucleus Security has raised $66.5 million in total; 2 of its rounds are on record. The largest on record was a $3.5 million seed round in Feb 2021; the most recent was a $20.3 million early-stage round in Mar 2022.
Nucleus Security has filed 2 Form Ds with the SEC since 2021, most recently in Mar 2022 ($20.3 million sold to 3 investors).
Nucleus Security investors
8 investors are on record for Nucleus Security, including Lead Edge Capital, In-Q-Tel, Arthur Ventures and Other People's Capital. By type, the record holds 3 venture capital firms and 2 growth equity firms. The early-stage round in Mar 2022 drew 3 investors.
About 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)
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