Nucleus
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Tampa, United States · Founded 2018 · $66.6M raised
- Headquarters
- Tampa, Florida
- Employees
- 51–200
- Founded
- 2018
- Business Model
- B2B
- Website
- nucleussec.com
- Total Funding
- $66.6M
- Last Round
- $20.0M Series CFeb 2026
- Rounds
- 4
About
Enterprise vulnerability and exposure management platform integrating asset, threat, and vulnerability data for prioritization.
Summary
Nucleus is a Cybersecurity company based in Tampa, United States, founded in 2018. It has raised $66.6M in total across 4 rounds, most recently a $20.0M Series C round in Feb 2026. Investors include Arthur Ventures, Delta-v Capital and Lead Edge Capital.
Tech & App Stack
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Funding History
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Feb 2026
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Pre-Seed through Series C — per-round amounts, valuations, and who invested in each round.
Investors
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