Sarasota, FL · Founded 2018 · Privately Held (backing)
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 based in Sarasota, FL and was founded in 2018. It was valued at $175 million at its later-stage round in Jan 2026, the last priced event on record. It has raised $66.5 million across 2 recorded rounds; the latest was a $20.3 million early-stage round in Mar 2022.
PMV mark · valuation
$175.0M
Oct 2026
Priced at
its later-stage round
Jan 2026
Total raised
$66.5M
Last round
Early Stage VC
Mar 2022
No prints on record
No secondary trades in Nucleus Security shares have been recorded yet. When market activity lands it appears here as monthly aggregates and, for platform-recorded trades, dated prints.
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Secondary marks are indicative month-end price levels observed across secondary-market trading venues — a level, not a trade — and are the market input to the PrivateMarketView mark. Private share prices aren’t published anywhere. Aggregate figures combine multiple reporting channels — direct participant reports, platform transactions, third-party market intelligence — at monthly granularity. Individually dated prints are a Pro feature and are shown only for transactions recorded on our own platform. Third-party-reported trades are never republished individually, at any tier. Verified prints (✓) have been confirmed against a second source. Prints marked SPV or Forward reflect the structure’s pricing, which can differ from direct share transfers of Nucleus Security stock.
