Nucleus Security: Funding, Investors & Team (Oct 2026)
Nucleus Security offers a solution aimed at improving and simplifying vulnerability management and security operations for businesses. They provide a range of tools to help teams detect and address security vulnerabilities more efficiently through centralized and automated processes. Their services include analytics and security tools to assist businesses in identifying, evaluating, and resolving security flaws.
Nucleus Security has raised $57.0M across 4 funding rounds on record, the most recent a Series C of $20.0M announced in Feb 2026.
That round is above the $6.2M median round size for Information Technology companies tracked on FundedIQ over the last two years.
Nucleus Security Company Profile and Key Stats
Latest funding round on record: Feb 2026.
Nucleus Security Funding Rounds
1 of 4 rounds was announced without a disclosed amount and is excluded from the total.
Nucleus Security raised $20.0M in a Series B announced in Mar 2022.
1.9 years later, a Series B of $17.0M was announced in Feb 2024.
6 months later, an undisclosed round was announced in Aug 2024 with no disclosed amount.
1.5 years later, a Series C of $20.0M was announced in Feb 2026.
Nucleus Security Founders and Leadership Team
Contact details for the Nucleus Security team: 2 of 3 have an email address on file.
Start 14-day free trial →Nucleus Security Funding Compared to Other Information Technology Startups
Nucleus Security's latest round of $20.0M is above the median round in Information Technology. Medians cover the last 24 months of disclosed rounds.
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Nucleus Security Funding FAQs
What does Nucleus Security do?
Nucleus Security offers a solution aimed at improving and simplifying vulnerability management and security operations for businesses. They provide a range of tools to help teams detect and address security vulnerabilities more efficiently through centralized and automated processes. Their services include analytics and security tools to assist businesses in identifying, evaluating, and resolving security flaws.
How much funding has Nucleus Security raised?
Nucleus Security has raised $57.0M across 4 rounds on record. The most recent is a Series C of $20.0M announced in Feb 2026.
When did Nucleus Security last raise funding?
Nucleus Security's most recent funding round on record is a Series C of $20.0M, announced in Feb 2026.
Who founded Nucleus Security?
FundedIQ lists Michael Nixon (Founder), Scott Kuffer (Founder), Stephen Carter (Founder) at Nucleus Security.
Where is Nucleus Security headquartered?
Nucleus Security is based in Sarasota, Florida, United States.
How many employees does Nucleus Security have?
Nucleus Security is in the 101-250 employee band.
How does Nucleus Security's funding compare to other Information Technology startups?
Nucleus Security's latest round of $20.0M is above the $6.2M median round size for Information Technology companies on FundedIQ across 3,146 tracked companies over the last two years.
About FundedIQ's Nucleus Security Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Nucleus Security is left off this page rather than filled in.
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