RECENT FUNDING
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Nucleus Security

The Nucleus vulnerability and exposure management platform enables organizations to prioritize and mitigate critical exposures, at scale.

Latest funding

$20M Series B+ ·

Source: fundraisingfox.com

Funding history ↓
Website: nucleussec.com.
X: @nucleussec · 587 followers.
LinkedIn: nucleussec.
Category: Cybersecurity.
Stage: Series B+.
Last round: Feb 11, 2026 · 268 days ago.
On Recent Funding since: Nov 6, 2026.

Signals

X account@nucleussec · created Dec 25, 2018 (7 years old) · 587 followers
Website registeredDec 4, 2018 (7 years old)
TIMELINE · MONEY RAISED

Nucleus Security | 2626 days from website to first raise on record

@nucleussec·Raised $20M in 1 sourced round·2 signals before the first raise
$5.0M$10M$15M$20MDECJAN 2020FEBMARAPRMAYJUNJUL$20M||WEBSITE CREATED · DEC 4, 2018||X ACCOUNT CREATED @NUCLEUSSEC · DEC 25, 2018$20M Series B+ · Feb 11, 2026$20M B+ · FEB '26

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

  1. Series B+ · $20M
  2. X account created
  3. Website created

Founders and team

Companies like Nucleus Security

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/nucleus-security (get a free API key).

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