About Nucleus Security
Nucleus Security is a company based in Sarasota (United States) founded in 2018 by Nick Fleming, Scott Kuffer, and Stephen Carter.. Nucleus Security has raised $86.1 million across 5 funding rounds from investors including Dcode Capital, Arthur Ventures and Lead Edge Capital. Nucleus Security offers products and services including Nucleus Platform, Risk Prioritization Tool, and Vulnerability Remediation. Nucleus Security operates in a competitive market with competitors including Proofpoint, SecurityScorecard, Coalfire, Tripwire and XM Cyber, among others.
- Headquarter Sarasota, United States
- Founders Nick Fleming, Scott Kuffer, Stephen Carter
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Sectors
Technology
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Email
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Phone
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Website
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Social
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- Legal Name Nucleus Security, Inc.
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Annual Revenue
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Net Profit
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EBITDA
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Total Equity Funding
$86.1 M (USD)
in 5 rounds
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Latest Funding Round
$20 M (USD), Series C
Feb 11, 2026
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Investors
Dcode Capital
& 4 more
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Employee Count
Employee Count
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Products & Services of Nucleus Security
Nucleus Security offers a comprehensive portfolio of products and services, including Nucleus Platform, Risk Prioritization Tool, and Vulnerability Remediation. The company's diverse product and service offerings are designed to meet the evolving needs of its customers, address market demands, and provide comprehensive solutions that drive value creation and customer satisfaction across various segments and use cases.
Unifies data to automate risk prioritization and remediation processes.
Prioritizes vulnerabilities using asset context and threat intelligence.
Automates ticketing and workflows for efficient vulnerability mitigation.
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Funding Insights of Nucleus Security
Nucleus Security has successfully raised a total of $86.1M across 5 strategic funding rounds. The most recent funding activity was a Series C round of $20 million completed in February 2026. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding Total Funding
- Total Rounds 5
- Last Round Series C — $20.0M
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First Round
First Round
(03 Mar 2021)
- Investors Count 5
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
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| Feb, 2026 | Amount | Series C - Nucleus Security | Valuation | Delta-v Capital |
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| Aug, 2024 | Amount | Series B - Nucleus Security | Valuation | Dcode Capital |
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| Feb, 2024 | Amount | Series B - Nucleus Security | Valuation | Arthur Ventures , Lead Edge Capital |
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
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| Jul, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Jan, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
Investors in Nucleus Security
Nucleus Security has secured backing from 5 investors, including venture fund investors. Prominent investors backing the company include Dcode Capital, Arthur Ventures and Lead Edge Capital. This diverse investor base provides strategic capital, industry expertise, and valuable network connections that support the company's growth initiatives, market expansion, and long-term value creation.
| Investor | Description | Founded Year | Domain | Location |
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Dcode Capital is engaged in investing in high-growth technology companies.
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Founded Year | Domain | Location | |
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US focused seed & early stage VC firm
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Founded Year | Domain | Location | |
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Lead Edge Capital is focused on growth equity investments in technology.
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Founded Year | Domain | Location |
| Investor | Description | Founded Year | Domain | Location |
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Single family office of Amitabh Bachchan, founder of Amitabh Bachchan Corporation or AB CORP
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Founded Year | Domain | Location | |
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Startup ecosystems are ignited through strategic investments by Signite Partners.
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Founded Year | Domain | Location | |
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Venture capital is directed toward companies in multiple sectors.
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Founded Year | Domain | Location | |
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Venture capital is invested in cybersecurity, fintech, and AI startups.
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Founded Year | Domain | Location |
Investments & Acquisitions by Nucleus Security
| Company Name | Description | Domain | Location | Founded Year | Amount |
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Bionic investment advisor platform
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2016 | ||||
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Fine Asian gourmet food is offered by an internet-first restaurant.
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2016 | ||||
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Physical e-commerce kiosks are deployed for rural purchases in Indonesia.
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2014 | ||||
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Fine Asian gourmet food is offered by an internet-first restaurant.
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2016 |
Financial Statements - Nucleus Security
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jul, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Jan, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
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| Feb, 2021 | Amount | Post-IPO - Grab | Valuation |
investors |
Nucleus Security Comparisons
Competitors of Nucleus Security
Nucleus Security operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Proofpoint, SecurityScorecard, Coalfire, Tripwire and XM Cyber, among others. This competitive environment drives innovation, market differentiation, and strategic positioning as companies strive to capture market share and deliver value to their customers. Understanding the competitive dynamics is crucial for assessing market positioning, identifying growth opportunities, and navigating the challenges inherent in a competitive marketplace.
| Company Name | Domain | Founded year | HQ Location | Description |
|---|---|---|---|---|
| domain | founded_year | HQ Location |
Enterprise cybersecurity solutions are delivered via a cloud-based platform.
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Cloud-based security ratings and cybersecurity risk solutions are offered.
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IT security governance, risk, and compliance solutions are provided.
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Cybersecurity solutions are provided for integrity and compliance management.
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Cyber risk and vulnerability assessments are provided for enterprises.
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| domain | founded_year | HQ Location |
Cloud-based cyber risk management solutions are delivered for various industries.
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| Company Name | Domain | Founded year | HQ Location | Description |
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Multiple services are booked via an app-based platform.
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On-demand services are booked through an app-based platform.
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App based platform offering on demand delivery and ride-hailing services
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Operates an on-demand hyperlocal delivery app for food and groceries.
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Latest news on Nucleus Security
Frequently Asked Questions about Nucleus Security
When was Nucleus Security founded?
Nucleus Security was founded in 2018 and raised its 1st funding round 3 years after it was founded.
Where is Nucleus Security located?
Nucleus Security is headquartered in Sarasota, United States. It is registered at Sarasota, Florida, United States.
Who is the current CEO of Nucleus Security?
Stephen Carter is the current CEO of Nucleus Security. They have also founded this company.
Is Nucleus Security a funded company?
Nucleus Security is a funded company, having raised a total of $86.1M across 5 funding rounds to date. The company's 1st funding round was a Series B of $43M, raised on Mar 03, 2021.
What does Nucleus Security do?
Nucleus was founded in 2018 in Sarasota, United States, within the cybersecurity sector. An integrated platform is operated to aggregate data from various vulnerability scanners, including Checkmarx, Netsparker, and Veracode. Comprehensive insights into risk posture are delivered through trends and reports. Integrations with partners such as Amazon, Snyk, and Qualys are supported, alongside capabilities for asset discovery and management.
Who are the top competitors of Nucleus Security?
Nucleus Security's top competitors include Proofpoint, Coalfire and Tripwire.
What products or services does Nucleus Security offer?
Nucleus Security offers Nucleus Platform, Risk Prioritization Tool, and Vulnerability Remediation.
Who are Nucleus Security's investors?
Nucleus Security has 5 investors. Key investors include Dcode Capital, Arthur Ventures, Lead Edge Capital, In-Q-Tel, and Delta-v Capital.