CISO Tribune

Vendor comparison · 2 companies

ConnectSecure vs Nucleus Security

ConnectSecure sells the ConnectSecure cybersecurity platform, which features what MSPs need to harden their clients’ attack surface and manage tightening compliance requirements. Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies. CISO Tribune files both under Vulnerability management. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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Up to four companies side by side.

  • ConnectSecure
  • Nucleus Security
ConnectSecure vs Nucleus Security: Products, Customers and Funding Compared
ConnectSecureConnectSecure sells the ConnectSecure cybersecurity platform, which features what MSPs need to harden their clients’ attack surface and manage tightening compliance requirements.bellinicapital.comNucleus SecurityNucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies.nucleussec.com
What it sells
  • ConnectSecure cybersecurity platform[1][2][6]A cybersecurity platform for managed service providers (MSPs). It covers hardening clients’ attack surface and managing compliance requirements.
  • Nucleus Data Core[5]A system of record for assets, exposures, and threats.
  • Nucleus ServiceNow App connector[7]A connector that integrates with ServiceNow through the Nucleus Security for Vulnerability Response app.
Categories
Headquarters
Tampa, Fla., United States[1][2][3][6]Not stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[5]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[12]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From the pages, ConnectSecure sells to managed service providers (MSPs) that assess risk for their clients. The ConnectSecure cybersecurity platform is aimed at MSPs that harden their clients’ attack surface and manage tightening compliance requirements for those clients. The organisations behind that work are the clients of those MSPs, whose attack surface and compliance requirements the platform addresses.Not written yet
Last verified
November 9, 2026November 8, 2026

Where they overlap

  • Vulnerability management is the primary category of both ConnectSecure and Nucleus Security.

Where they differ, field by field

  • ConnectSecure is also filed under External attack surface management and Compliance automation. Nucleus Security is also filed under Exposure prioritisation and CTEM and Threat intelligence.
  • ConnectSecure lists ConnectSecure cybersecurity platform. Nucleus Security lists Nucleus Data Core and Nucleus ServiceNow App connector.
  • ConnectSecure is headquartered in Tampa, Fla., United States.

How they differ

ConnectSecure is also filed under External attack surface management and Compliance automation, while Nucleus Security is also filed under Exposure prioritisation and CTEM and Threat intelligence. ConnectSecure sells the ConnectSecure cybersecurity platform, which is aimed at managed service providers (MSPs) that harden their clients' attack surface and manage compliance requirements. Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies.

Nucleus Security's Nucleus Data Core is a system of record for assets, exposures, and threats, and its Nucleus ServiceNow App connector integrates with ServiceNow through the Nucleus Security for Vulnerability Response app. Nucleus Security also offers POAM automation for federal agencies and contractors and maps findings to NIST 800-171 controls. ConnectSecure is headquartered in Tampa, Fla., United States. Bellini Capital has investments in ConnectSecure, and its investing focus is companies that defend the small and midmarket of the US economy.

Nucleus experts researched every new KEV addition between October 2025 and March 2026 and captured their observations in a report.

What it sells: ConnectSecure

What ConnectSecure cybersecurity platform does[1][2][6]
The ConnectSecure cybersecurity platform features what MSPs need to harden their clients’ attack surface. The ConnectSecure cybersecurity platform covers what MSPs need to manage tightening compliance requirements. ConnectSecure is aimed at managed service providers (MSPs) that assess risk for their clients.

What it sells: Nucleus Security

What Nucleus Data Core does[5]
The Nucleus Data Core is a system of record for assets, exposures, and threats. The Nucleus Data Core transforms fragmented data into unified, live exposure context. Nucleus says every AI decision and action is grounded in the Nucleus Data Core.
What Nucleus ServiceNow App connector does[7]
The Nucleus ServiceNow App connector integrates directly with ServiceNow through the Nucleus Security for Vulnerability Response app. The app runs directly on a customer's ServiceNow environment and enables integration with Vulnerability Response. The app has several different integrations, including assets and vulnerable items.

Questions about ConnectSecure and Nucleus Security

What do ConnectSecure and Nucleus Security sell?
ConnectSecure sells ConnectSecure cybersecurity platform. Nucleus Security sells Nucleus Data Core and Nucleus ServiceNow App connector.
Are ConnectSecure and Nucleus Security in the same category?
Yes. Vulnerability management is the primary category of both on CISO Tribune.
Where are ConnectSecure and Nucleus Security headquartered?
ConnectSecure is headquartered in Tampa, Fla., United States.
Who are ConnectSecure and Nucleus Security sold to?
From the pages, ConnectSecure sells to managed service providers (MSPs) that assess risk for their clients.

About ConnectSecure

ConnectSecure sells the ConnectSecure cybersecurity platform, which features what MSPs need to harden their clients’ attack surface and manage tightening compliance requirements.

ConnectSecure is aimed at managed service providers (MSPs) that assess risk for their clients and deal with an ever-evolving cyber threat environment.

ConnectSecure has its headquarters in Tampa, Fla. Tampa is home to the headquarters or major offices of ConnectSecure.

Bellini Capital has investments in ConnectSecure. Bellini Capital's investing focus is companies that defend the small and midmarket of the US economy.[4]

ConnectSecure on the record

Sources

ConnectSecure full record

  1. [1]ConnectsecureBellini Capital · bellinicapital.com · undated page, accessed September 30, 2026 · Tier A
  2. [2]Cybersecurity - Bellini CapitalBellini Capital · undated page, accessed October 31, 2026 · Tier A
  3. [3]Historic $40M Gift Establishes Bellini College of AI, Cybersecurity and Computing at USF, Solidifying Tampa Bay as “Cyber Bay” - Bellini CapitalBellini Capital · published March 11, 2025 · Tier A
  4. [4]Arnie Bellini: Why He’s Getting Back Into The Channel - Bellini CapitalBellini Capital · published April 3, 2024 · Tier A
  5. [5]ConnectSecure Vulnerability and Compliance Manager Reviews 2026G2 · undated page, accessed October 31, 2026 · Tier C
  6. [6]ConnectSecure - Bellini CapitalBellini Capital · undated page, accessed November 10, 2026 · Tier A

Nucleus Security full record

  1. [1]nucleussec.comNucleus Security · nucleussec.com · undated page, accessed November 8, 2026 · Tier A
  2. [2]PlatformNucleus Security · nucleussec.com · undated page, accessed November 8, 2026 · Tier A
  3. [3]Nucleus Vulnerability & Exposure Management SolutionsNucleus Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Nucleus Security | Vulnerability and Exposure ManagementNucleus Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Nucleus Vulnerability Management PlatformNucleus Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Vulnerability Remediation with NucleusNucleus Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]ServiceNow App for Vulnerability ResponseNucleus Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]Operationalize CMMC 2.0 Compliance with NucleusNucleus Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Get Started Nucleus POAMNucleus Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Nucleus PricingNucleus Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Risk-based Vulnerability Management | Nucleus SecurityNucleus Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]Nucleus Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

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