CISO Tribune

Vendor comparison · 2 companies

CISO Global vs Quorum Cyber

CISO Global sells expert-led services and purpose-built software, delivered as one unified program. Quorum Cyber delivers Microsoft-first, threat-led cyber security services. CISO Tribune files both under Security consulting and advisory. 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.

Change the companies

Up to four companies side by side.

  • CISO Global
  • Quorum Cyber
CISO Global vs Quorum Cyber: Products, Customers and Funding Compared
CISO GlobalCISO Global sells expert-led services and purpose-built software, delivered as one unified program.ciso.incQuorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.com
What it sells
  • Risk and Compliance Services[7]Services that help organizations assess cybersecurity risk and manage compliance requirements.
  • Advanced AI Cyber Defense[6]An umbrella for services that reduce exposure, monitor threats, and support incident response.
  • FedRAMP® Services[3][7]Support to prepare for or maintain FedRAMP® certification.
  • Managed GRC Services[3][7]Ongoing support for the day-to-day tasks of a GRC program.
  • AI-Powered SOC[3][6]Analysts review signals across supported security tools and investigate suspicious behavior.
  • Continuous Threat Exposure Management[3][6]Identifies exposed assets, vulnerabilities, misconfigurations, and potential attack paths.
  • Incident Response[3][5][6]Specialists help contain, investigate, and recover from a confirmed cyber incident.
  • Clarity Defend[1][3][6]Managed detection and response service providing 24/7 monitoring, detection and response to attacks.
  • Clarity Extend[1][3]Enhanced security coverage extending monitoring to Microsoft Cloud and third-party technologies across an organization's IT ecosystem.
  • Clarity Protect[1][3]Service that detects and stops threats, reduces cyber risk, and strengthens security across Microsoft and AI environments, including a CTEM offering.
  • Clarity Data & AI[1][3]Service that helps organizations understand, protect and govern data, reducing exposure to insider threats and AI-related risks.
  • Clarity OT[3]Managed detection and response service for operational technology environments.
  • Incident Response Services[3]Services including incident response preparedness, retainer agreements, and emergency MDR for breach investigation and containment.
Categories
Headquarters
Not stated on its pagesEdinburgh, United Kingdom[1]
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Public (NASDAQ: CISO)[2][7][9]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • September 16, 2026Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.[12]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • 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
Organizations engage CISO Global to run their entire program, manage specific services, or work alongside internal teams and existing vendors. Advanced AI Cyber Defense is described as supporting organizations with lean security teams, complex environments, growing compliance needs, or limited response capacity. Lean internal security, compliance, or GRC teams are among the organizations CISO Global describes, as are organizations preparing for audits, assessments, certifications, or client reviews. CISO Global also names cybersecurity and compliance experts with experience protecting state and local governments.Not written yet
Last verified
September 30, 2026October 7, 2026

Where they overlap

  • CISO Global and Quorum Cyber are both filed under Security consulting and advisory.

Where they differ, field by field

  • CISO Global's primary category is Managed security service providers; Quorum Cyber's is MDR and managed SOC.
  • CISO Global is also filed under Penetration testing and red team services and GRC and integrated risk platforms. Quorum Cyber is also filed under Incident response and forensics and OT and ICS security.
  • CISO Global lists Risk and Compliance Services, Advanced AI Cyber Defense, FedRAMP® Services, Managed GRC Services, AI-Powered SOC and 2 more. Quorum Cyber lists Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
  • Quorum Cyber is headquartered in Edinburgh, United Kingdom.
  • CISO Global is a public company listed on NASDAQ as CISO.

What it sells: CISO Global

What Risk and Compliance Services does[7]
CISO Global Risk and Compliance Services help organizations prepare for audits and assessments and strengthen governance. The services cover Risk and Gap Assessments, Managed GRC Services, CMMC Services, FedRAMP® Services, Tabletop Exercises, and vCISO Services.
What Advanced AI Cyber Defense does[6]
Advanced AI Cyber Defense is CISO Global’s umbrella for these services. Advanced AI Cyber Defense includes Continuous Threat Exposure Management, AI-Powered SOC, and Incident Response.
What Continuous Threat Exposure Management does[3][6]
Continuous Threat Exposure Management identifies exposed assets, vulnerabilities, misconfigurations, and potential attack paths. Findings are prioritized based on their potential impact.

Questions about CISO Global and Quorum Cyber

What do CISO Global and Quorum Cyber sell?
CISO Global sells Risk and Compliance Services, Advanced AI Cyber Defense, FedRAMP® Services, Managed GRC Services, AI-Powered SOC and 2 more. Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
Are CISO Global and Quorum Cyber in the same category?
They share Security consulting and advisory. CISO Global's primary category is Managed security service providers and Quorum Cyber's is MDR and managed SOC.
Where are CISO Global and Quorum Cyber headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
Who owns CISO Global and Quorum Cyber?
CISO Global is a public company listed on NASDAQ as CISO.
Who are CISO Global and Quorum Cyber sold to?
Organizations engage CISO Global to run their entire program, manage specific services, or work alongside internal teams and existing vendors.
What have CISO Global and Quorum Cyber announced recently?
September 16, 2026: Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.

About CISO Global

CISO Global sells expert-led services and purpose-built software, delivered as one unified program. CISO Global runs cybersecurity as a unified program, integrating IT to deliver clear strategy, visibility, and execution. CISO Global combines expert-led services with purpose-built software to connect risk and compliance, offensive and defensive security, forensics, and secure IT architecture into a single operating model. Organizations engage CISO Global to run their entire program, manage specific services, or work alongside internal teams and existing vendors. CISO Global supports organizations operating in complex, regulated, and high-risk environments.[3][5]

CISO Global provides security engineering, customization, and support for networks, endpoints, and security operations, such as MDR, SIEM, XDR, and SOCaaS. Managed Compliance is offered for ongoing security program management support. CISO Global operates a 24/7 Security Operations Center that monitors the environment, detects threats and responds in real time. CISO Global designs, manages, and continuously improves secure IT infrastructure. CISO Global tests client systems to spot threat vectors before they cause damage.[1][3][5]

CISO Global Risk and Compliance Services help organizations assess cybersecurity risk, prepare for audits and assessments, strengthen governance, and manage ongoing compliance requirements. CISO Global brings structure to these efforts through Risk and Gap Assessments, Managed GRC Services, CMMC Services, FedRAMP® Services, Tabletop Exercises, and vCISO Services. CMMC Services prepare organizations for CMMC and NIST SP 800-171 requirements through gap assessments, readiness support, evidence organization, and mock assessments. TalaTek is a wholly owned subsidiary of CISO Global and a FedRAMP®-recognized independent assessor. FedRAMP® Services cover advisory, readiness, ongoing support, and independent assessment services available through TalaTek LLC.[3]

Managed GRC Services give ongoing support for policies, controls, evidence, audits, questionnaires, risk tracking, reporting, and the day-to-day tasks of a GRC program. Risk and Gap Assessments identify control gaps and prioritize the next steps based on risk, business impact, and compliance needs. Tabletop Exercises validate response plans, clarify roles, and test decision-making. vCISO Services give access to senior cybersecurity leadership to guide strategy, governance, risk decisions, compliance readiness, executive reporting, and security program maturity. CISO Global is a certified QSA and can review client strategies through the lens of PCI compliance. CISO Global risk assessments can be mapped against NIST, or any other framework the client chooses.[1][10]

Advanced AI Cyber Defense is CISO Global’s umbrella for services that reduce exposure, monitor threats, and support incident response. Advanced AI Cyber Defense includes Continuous Threat Exposure Management, AI-Powered SOC, and Incident Response. Continuous Threat Exposure Management identifies exposed assets, vulnerabilities, misconfigurations, and potential attack paths. AI-Powered SOC analysts review signals across supported security tools, investigate suspicious behavior, and escalate validated threats with relevant evidence and recommended next steps. When an incident is confirmed, Incident Response specialists help contain the threat, determine its scope and cause, preserve evidence, and guide remediation and recovery. CISO Global can support, extend, or augment internal teams.[3][6]

CISO Global offers an XDR Extended Detection & Response Solution that unifies prevention, detection, and response across the entire environment, powered by its own 24x7x365 Security Operations Center. Guidance and expertise are provided along the way so the Blue Team accomplishes supported remediation in real time.[10]

Talent acquisition is the founding philosophy of CISO Global. CISO Global experts hold credentials across cybersecurity, risk and compliance, forensics, incident response, ethical hacking, security engineering, and more.[1][3][4][5][6][8][10][11]

CISO Global on the record

Sources

CISO Global full record

  1. [1]ciso.incCISO Global · ciso.inc · undated page, accessed September 30, 2026 · Tier A
  2. [2]CompanyCISO Global · ciso.inc · undated page, accessed September 30, 2026 · Tier A
  3. [3]CISO Global | Cybersecurity, Compliance & Managed Security Services ProviderCISO Global · undated page, accessed October 31, 2026 · Tier A
  4. [4]About CISO Global – Cybersecurity Company | CISO GlobalCISO Global · undated page, accessed October 31, 2026 · Tier A
  5. [5]Managed Services Solutions | CISO GlobalCISO Global · undated page, accessed October 31, 2026 · Tier A
  6. [6]Advanced AI Cyber Defense Services | CISO GlobalCISO Global · undated page, accessed October 31, 2026 · Tier A
  7. [7]Risk and Compliance Services | CISO GlobalCISO Global · undated page, accessed October 31, 2026 · Tier A
  8. [8]Contact Us - CISO GlobalCISO Global · undated page, accessed October 31, 2026 · Tier A
  9. [9]Join Us – CareersCISO Global · undated page, accessed October 31, 2026 · Tier A
  10. [10]Ransomware Prevention for State & Local GovernmentCISO Global · undated page, accessed November 10, 2026 · Tier A
  11. [11]Gary Perkins | CISO GlobalCISO Global · undated page, accessed November 10, 2026 · Tier A

Quorum Cyber full record

  1. [1]quorumcyber.comQuorum Cyber · quorumcyber.com · undated page, accessed October 7, 2026 · Tier A
  2. [2]Difenda will rebrand as quorum cyberQuorum Cyber · quorumcyber.com · undated page, accessed October 7, 2026 · Tier A
  3. [3]Microsoft Cyber Security Services Provider | Quorum CyberQuorum Cyber · undated page, accessed October 31, 2026 · Tier A
  4. [4]About Quorum | Cyber Security CompanyQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  5. [5]Why I’m Passionate about Protecting British Organisations from Cybercrime - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  6. [6]Managed Security Services | Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  7. [7]Cyber Resilience Assessment | Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  8. [8]Quorum Cyber Managed XDR integrates with Microsoft Security Technology - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  9. [9]Quorum Cyber is leveraging Copilot for Security at scale - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  10. [10]Customers Informed of Microsoft Data Breach - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  11. [11]Quorum Cyber appoints Chief Information Security OfficerQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Quorum Cyber Announces Intent to Acquire Ontinue, Building an Unrivaled Microsoft-First Agentic SOC for the Autonomous Threat EraPRNewswire · published September 16, 2026 · Tier A

Spot a factual error? Request a correction.