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Nucleus

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Helping security teams optimize vulnerability management workflows through orchestration and automation

Lakewood Ranch, United StatesFounded 2018Cybersecurity
Valuation $100–250M Last recorded · 2026
Revenue $1–10M Latest reported FY
Headcount 100–500 Current team size
Total funding $50–100M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Nucleus and the history behind them.

About Nucleus

Nucleus Security operates in the cybersecurity market, specializing in vulnerability management software. The company serves a diverse range of clients, including large enterprises and organizations that require robust security measures to protect their digital assets. Nucleus Security's core product is a centralized platform that integrates with over 100 scanners and external tools, providing a unified solution for vulnerability analysis, triage, and remediation. This platform helps organizations manage and mitigate security vulnerabilities more efficiently by automating workflows and centralizing data, which increases the speed and reduces the cost of vulnerability management programs.

The business model of Nucleus Security is primarily subscription-based, offering its software as a service (SaaS). Clients pay a recurring fee to access the platform, which includes regular updates and support. The company generates revenue through these subscriptions, as well as through additional services such as consulting and custom integrations.

Nucleus Security's platform is designed to unlock value from existing security tools, enabling organizations to mature their vulnerability management programs. By providing a single source of record for all assets, vulnerabilities, and associated data, the platform helps security teams gain better visibility and control over their security posture. This is particularly valuable for large organizations with complex IT environments, where maintaining visibility and managing vulnerabilities can be challenging.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2018
Headquarters
Lakewood Ranch, United States
Employees
123
Open positions
3
Dealroom signal
88.5/100
Industry
Security, Enterprise Software
Sector
Cybersecurity, Platform
Business model
SaaS
Client focus
b2b

Funding history

5 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES COther financing Feb 2026 $20M $80M Arthur Ventures · Delta-v Capital ↗
LATE VCOther financing Aug 2024 $0 — Dcode Capital ↗
Showing the latest 2 of 5 recorded eventsBook a demo for the full funding history →

Financials

Revenue over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

YearRevenueGrowth
2026
2025
2024
2023
2022
2021 —
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Growth signals

Nucleus website traffic

Latest recorded traffic for Nucleus is 27K monthly website visits, down 18.2% over the last three months. Nucleus's team grew 19.4% over the past year.

Latest monthly visits27K 3-month web change-18.2% 1-year team growth+19.4%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

5 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A3 investors entered at this stage

Series B and later2 investors entered at this stage

  • Dcode Capital
  • Delta-v Capital
Team profiled 16 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 5 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
9 countries with
team presence
🇺🇸 United States84.8%
🇬🇧 United Kingdom4%
🇦🇺 Australia4%
🇵🇱 Poland2%
🇺🇿 Uzbekistan1%
Top 5 of 9 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Nucleus on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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