CISO Tribune

Vendor comparison · 2 companies

Quorum Cyber vs Red Canary

Quorum Cyber delivers Microsoft-first, threat-led cyber security services. Red Canary, now part of Zscaler, sells Managed Detection & Response (MDR), a service that taps in-house experts to detect, manage, respond to, and remediate threats at scale. 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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Up to four companies side by side.

  • Quorum Cyber
  • Red Canary
Quorum Cyber vs Red Canary: Products, Customers and Funding Compared
Quorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.comRed CanaryRed Canary, now part of Zscaler, sells Managed Detection & Response (MDR), a service that taps in-house experts to detect, manage, respond to, and remediate threats at scale.redcanary.com
What it sells
  • 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.
  • Managed Detection & Response (MDR)[3]Taps in-house experts to detect, manage, respond to, and remediate threats at scale.
Categories
Headquarters
Edinburgh, United Kingdom[1]Not stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesOwned by Zscaler since 2025[2][3][4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • September 16, 2026Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.[12]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen October 27, 2026[4]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, Red Canary sells mainly to security operations teams that need to scale protection without adding headcount. Its service is aimed at organizations whose attack surface spans networks, endpoints, identities, cloud infrastructure, and AI applications. Organizations that run AWS, GCP, or Azure environments are covered by its cloud detection. Teams that use a SIEM, SOAR, or ITSM platform can send alerts into those workflows.
Last verified
October 7, 2026September 27, 2026

Where they overlap

  • MDR and managed SOC is the primary category of both Quorum Cyber and Red Canary.

Where they differ, field by field

  • Quorum Cyber is also filed under Incident response and forensics, Security consulting and advisory and OT and ICS security. Red Canary is also filed under Threat intelligence.
  • Quorum Cyber lists Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more. Red Canary lists Managed Detection & Response (MDR).
  • Quorum Cyber is headquartered in Edinburgh, United Kingdom.
  • Red Canary is owned by Zscaler, since 2025.

How they differ

CISO Tribune files both Quorum Cyber and Red Canary under MDR and managed SOC as their primary category, so their core offerings overlap. Quorum Cyber sells Clarity Defend, a managed detection and response service providing 24/7 monitoring, detection and response to attacks. Red Canary sells Managed Detection & Response (MDR), a service that taps in-house experts to detect, manage, respond to, and remediate threats at scale. Beyond MDR, CISO Tribune also files Quorum Cyber under Incident response and forensics, Security consulting and advisory, and OT and ICS security, and Quorum Cyber sells Clarity OT and Incident Response Services. CISO Tribune files Red Canary additionally under Threat intelligence.

Quorum Cyber describes its services as Microsoft-first, and it is a Microsoft Solutions Partner for Security that works with Microsoft 365 Defender and Microsoft Sentinel. Red Canary's MDR uses in-house experts, AI agents, and deep ZIA integration, and alerts can be sent to a SIEM, SOAR, or ITSM platform. Red Canary's MDR can isolate endpoints via EDR and suspend users via the customer's IDP.

Quorum Cyber is headquartered in Edinburgh, United Kingdom, and says it has over 350 employees across the UK, US, Canada and UAE. Quorum Cyber states that it protects 400+ organisations across four continents. On September 16, 2026, Quorum Cyber announced a definitive agreement to acquire Ontinue, a managed extended detection and response provider. Red Canary has been owned by Zscaler since 2025, and its MDR adds 24/7 human-led, AI-powered support enriched with Zscaler context.

What it sells: Red Canary

What Managed Detection & Response (MDR) does[3]
Managed Detection & Response (MDR) uses in-house experts, AI agents, and deep ZIA integration. Alerts can be sent to a SIEM, SOAR, or ITSM platform.

Questions about Quorum Cyber and Red Canary

What do Quorum Cyber and Red Canary sell?
Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more. Red Canary sells Managed Detection & Response (MDR).
Are Quorum Cyber and Red Canary in the same category?
Yes. MDR and managed SOC is the primary category of both on CISO Tribune.
Where are Quorum Cyber and Red Canary headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
Who owns Quorum Cyber and Red Canary?
Red Canary is owned by Zscaler, since 2025.
Who are Quorum Cyber and Red Canary sold to?
From its own pages, Red Canary sells mainly to security operations teams that need to scale protection without adding headcount.
What have Quorum Cyber and Red Canary 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 Quorum Cyber

Quorum Cyber delivers Microsoft-first, threat-led cyber security services. Quorum Cyber was founded in Edinburgh in 2016. Federico Charosky founded Quorum Cyber. Quorum Cyber is a Microsoft Solutions Partner for Security and works with the Microsoft Security stack, including Microsoft 365 Defender and Microsoft Sentinel.

Quorum Cyber says AI changes how organisations work and how attackers operate. Quorum Cyber helps security teams protect data, manage emerging risks and enable secure adoption.

Clarity is more than the name of Quorum Cyber's customer platform and managed security services. Quorum Cyber unifies Microsoft 365 Defender and Microsoft Sentinel in Clarity, turning raw signals into prioritised incidents. Quorum Cyber offers three managed detection and response services, plus a dedicated data security service.[6]

Quorum Cyber's Cyber Resilience Assessment evaluates how well an organisation can manage cyber disruption. Quorum Cyber's Security Maturity Assessment looks at the effectiveness of a wider security programme, including governance, controls and risk management.[7]

Quorum Cyber has an Incident Response team that helps organisations investigate and manage cyber incidents. Quorum Cyber's Security Operations Centre works to detect and respond to customer threats. Quorum Cyber offers an incident response retainer that customers can initiate. Quorum Cyber offers Managed XDR, which integrates with Microsoft Security Technology. Quorum Cyber works with the generative AI capabilities of Copilot for Security to help defend customers against cyber threats. Quorum Cyber has a Threat Intelligence team. Following two acquisitions in 2024, Quorum Cyber's services range from phishing simulation and managed services to incident response and ransom negotiation.[7][8][9][10]

Quorum Cyber states that it protects 400+ organisations across four continents. Quorum Cyber has over 350 employees across the UK, US, Canada and UAE. Quorum Cyber is also a member of the Microsoft Intelligent Security Association and a Microsoft Security Copilot Partner.[6][7][11]

Quorum Cyber on the record

Sources

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

Red Canary full record

  1. [1]redcanary.comRed Canary · redcanary.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Zscaler completes acquisition red canary accelerate innovations agentic ai driven securityZscaler · zscaler.com · published August 1, 2025 · Tier A
  3. [3]Zscaler Managed Detection & Response (MDR) | ZscalerZscaler · undated page, accessed October 27, 2026 · Tier A
  4. [4]Zscaler Sec Ops Pricing - G2G2 · undated page, accessed October 27, 2026 · Tier C

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