CISO Tribune

Vendor comparison · 2 companies

NCC Group vs Stellar Cyber

NCC Group is a global cyber security and resilience company with over 2000 colleagues around the world. Stellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities. CISO Tribune files both under MDR and managed SOC. 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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  • NCC Group
  • Stellar Cyber
NCC Group vs Stellar Cyber: Products, Customers and Funding Compared
NCC GroupNCC Group is a global cyber security and resilience company with over 2000 colleagues around the world.nccgroup.comStellar CyberStellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities.stellarcyber.ai
What it sells
  • Penetration Testing Services[1]Security assessments that test an organization's systems to find weaknesses.
  • Continuous Penetration Testing[1]Ongoing testing of environments rather than a single point-in-time engagement.
  • Managed Extended Detection & Response (MXDR)[1]A managed service that monitors customer environments and detects and responds to threats, offered for Microsoft and Splunk tooling.
  • Attack Surface Management[1]Continuous monitoring of an organization's external-facing assets from an attacker's perspective.
  • Cyber Incident Response Retainer[1]A retainer service providing digital forensics and incident response support for critical assets.
  • Online Exposure Monitoring[1]Continuous monitoring of the surface, deep and dark web to reduce the risk and impact of cyber attacks.
  • Stellar Cyber Open XDR PlatformA SecOps platform that unifies SIEM, network detection and response, identity threat detection and response, and behavior analytics with AI-driven detection, investigation and response.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesPrivately held[3][4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • October 5, 2026Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.[16]
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
NCC Group also addresses Hyperscalers and their clients that are undertaking cloud transformation. Industrial organizations facing regulatory complexity across global operations and supply chains are another group it addresses. Its customer examples include a private university and a major professional services client.Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs. Stellar Cyber designs its enterprise platform for security teams of any size or skill level. Stellar Cyber Open XDR can be deployed on-premises, from the cloud, or co-managed by an MSSP.
Last verified
November 4, 2026November 9, 2026

Where they overlap

  • NCC Group and Stellar Cyber are both filed under MDR and managed SOC.

Where they differ, field by field

  • NCC Group's primary category is Penetration testing and red team services; Stellar Cyber's is SIEM.
  • NCC Group is also filed under Incident response and forensics and External attack surface management. Stellar Cyber is also filed under AI SOC analysts.
  • NCC Group lists Penetration Testing Services, Continuous Penetration Testing, Managed Extended Detection & Response (MXDR), Attack Surface Management, Cyber Incident Response Retainer and 1 more. Stellar Cyber lists Stellar Cyber Open XDR Platform.
  • Stellar Cyber is privately held.

Questions about NCC Group and Stellar Cyber

What do NCC Group and Stellar Cyber sell?
NCC Group sells Penetration Testing Services, Continuous Penetration Testing, Managed Extended Detection & Response (MXDR), Attack Surface Management, Cyber Incident Response Retainer and 1 more. Stellar Cyber sells Stellar Cyber Open XDR Platform.
Are NCC Group and Stellar Cyber in the same category?
They share MDR and managed SOC. NCC Group's primary category is Penetration testing and red team services and Stellar Cyber's is SIEM.
Who owns NCC Group and Stellar Cyber?
Stellar Cyber is privately held.
Who are NCC Group and Stellar Cyber sold to?
NCC Group also addresses Hyperscalers and their clients that are undertaking cloud transformation. Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs.
What have NCC Group and Stellar Cyber announced recently?
October 5, 2026: Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.

About NCC Group

NCC Group is a global cyber security and resilience company with over 2000 colleagues around the world. NCC Group takes part in the NCSC’s Industry 100 Programme. NCC Group was an executive lunch sponsor at the 9th Annual Cybersecurity Summit of Auto-ISAC in Washington, D.C.[3][4]

NCC Group offers incident readiness services, crisis management and post-incident recovery guidance. NCC Group uses technical experts to assess the security of applications, hardware, networks and infrastructure. NCC Group performs 24/7/365 monitoring and security process management for organisations that augment, outsource or optimize their cyber security programs. NCC Group provides advisory expertise and hands-on implementation of preventative controls. NCC Group delivers intelligence and insights on advanced cyber threats and adversaries. NCC Group puts organisations in touch with an accredited Incident Response expert.[1][3]

NCC Group security consultants and certified ethical hackers carry out exercises that emulate the cyber attacks that networks, systems and applications could face. NCC Group's penetration testing combines automated tools with manual testing. NCC Group provides Red, Purple, and Black Teaming services. NCC Group assesses web and mobile applications for security vulnerabilities. NCC Group offers fully automated, semi-automated, and manual testing services. NCC Group reviews the secure configuration of devices and systems, including build reviews and network device reviews. NCC Group uses a proprietary configuration scanner that incorporates cloud-provider benchmarks. NCC Group reviews container and orchestration setups. NCC Group assesses smart contract implementations, Web3 integrations, and cryptographic protocols in blockchain applications. NCC Group assesses encryption configurations, cryptographic primitives, and security protocols. NCC Group conducts design and architecture reviews with client engineering groups throughout the development lifecycle. NCC Group offers continuous, contextualised security assurance for modern development lifecycles. NCC Group states that penetration testing helps meet compliance with industry regulations such as PCI DSS, ISO 27001, and GDPR.[1][5]

NCC Group provides managed security operations, bug bounty programs, financial fraud prevention, and continuous vulnerability scanning. NCC Group triages alerts and removes false positives in vulnerability management, with experts who can also help with remediation. NCC Group gives customers access to independent security researchers worldwide and builds, executes, and manages bug bounty programs. NCC Group offers a vulnerability and threat management platform powered by human expertise and artificial intelligence. NCC Group helps organizations see their external facing assets and attack surface from a hacker’s perspective.[1][6]

NCC Group delivers technical expertise to Hyperscalers and their clients so that cloud transformation is secure, compliant and strategically aligned. NCC Group runs blended cyber, physical and social engineering simulations. NCC Group delivers OT Incident Response in partnership with Dragos and adds it to a client's IT Retainer. NCC Group uses a custom-built OT network sensor that monitors traffic and feeds directly into its SOC. NCC Group physically audits client environments, assesses machinery and equipment, and reviews how it is connected to the wider network. NCC Group helps clients deploy and integrate modern identity solutions. NCC Group detects identity-based threats and attacks and responds through integrated SOC intelligence and continuous monitoring. NCC Group helps clients automate and optimize their identity security operations. NCC Group helps clients interpret supply chain regulations such as NIS2 and DORA. NCC Group assesses cyber risk throughout the M&A lifecycle. NCC Group provides buy-side and sell-side due diligence. NCC Group monitors and tracks adversary behavior across sectors and regions, including dark web activity linked to supply chain compromise.[7][8][9][10][11]

Tulane University is a private university in New Orleans. Tulane University selected NCC Group via a referral. A major professional services client asked NCC Group for assistance with the migration of its Security Operation Center, which included two data centers, onto the cloud. NCC Group cloud experts performed threat modeling, harmonized standard operating procedures, and created incident response plans for that migration.[1][5][6][7][8][9][11][12]

NCC Group on the record

Sources

NCC Group full record

  1. [1]nccgroup.comNCC Group · nccgroup.com · undated page, accessed November 4, 2026 · Tier A
  2. [2]Case Study: Digital Forensics for Tulane University | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  3. [3]NCC Group | Leading Cyber Security & Managed ServicesNCC Group · undated page, accessed November 10, 2026 · Tier A
  4. [4]Reflections from the 2025 Auto-ISAC Cybersecurity Summit | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  5. [5]Penetration Testing Services | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  6. [6]Managed Security Services | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  7. [7]Cloud & Digital Transformation Security Solutions | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  8. [8]Proactive Security | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  9. [9]Operational Technology (OT) Security | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  10. [10]Digital Identity Solutions | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  11. [11]Supply Chain & Third-Party Cyber Risk | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  12. [12]Case Study: Cloud Migration for Professional Services | NCC GroupNCC Group · undated page, accessed November 10, 2026 · Tier A
  13. [13]NCC Group Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

Stellar Cyber full record

  1. [1]ProductStellar Cyber · stellarcyber.ai · published February 25, 2026 · Tier A
  2. [2]Stellar cyber announces agentic ai autonomous soc in 6 4 0 releaseStellar Cyber · stellarcyber.ai · published March 16, 2026 · Tier A
  3. [3]Stellar cyber named one of americas best startup employersStellar Cyber · stellarcyber.ai · published November 21, 2024 · Tier A
  4. [4]ISOC Platform with AI SIEM, NDR, Open XDR & Multi-Layer AIStellar Cyber · undated page, accessed October 29, 2026 · Tier A
  5. [5]Stellar Cyber Automation-driven SecOps PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  6. [6]Stellar Cyber vs Sumo Logic: Expert SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  7. [7]Stellar Cyber vs Splunk: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  8. [8]Integrated Security Operations Center (ISOC) PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  9. [9]SC vs Microsoft Sentinel: Comprehensive SIEM SolutionStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  10. [10]SC vs. CrowdStrike | Compare Leading Cybersecurity PlatformsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  11. [11]EDR Software, Endpoint Detection & ResponseStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Stellar Cyber Autonomous SOC PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  13. [13]Stellar Cyber Multi-Layer AI™ | Advanced AI Platform for SecOpsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  14. [14]Stellar Cyber AI SIEM | AI-Driven SIEM PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  15. [15]Stellar Cyber vs AlienVault: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  16. [16]Stellar Cyber 7.0 Makes the Agentic SOC Measurable, Actionable and Operational at ScaleStellar Cyber · published October 5, 2026 · Tier A

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