CISO Tribune

Vendor comparison · 2 companies

Proficio vs Quorum Cyber

Proficio sells managed detection and response (MDR) services. Quorum Cyber delivers Microsoft-first, threat-led cyber security services. 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.

  • Proficio
  • Quorum Cyber
Proficio vs Quorum Cyber: Products, Customers and Funding Compared
ProficioProficio sells managed detection and response (MDR) services.proficio.comQuorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.com
What it sells
  • ProSOC MDR[1][4][6][7][8][9][14]24/7 monitoring and SOC-as-a-Service powered by the Proficio-hosted SIEM.
  • ProSOC MDR for Microsoft[1][9]Managed detection and response integrated with Microsoft Sentinel SIEM.
  • Active Defense Response[1][4][6]Response-as-a-service that uses SOAR capabilities to automate threat responses.
  • Cyber Exposure Monitoring[4][7]Continuous external threat monitoring for exposed data and Dark Web leaks.
  • Risk Based Vulnerability Management[1]Identifies and prioritizes vulnerabilities and offers a risk score.
  • 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
2010[2][3]Not 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 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
Not written yetNot written yet
Last verified
November 6, 2026October 7, 2026

Where they overlap

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

Where they differ, field by field

  • Proficio is also filed under SIEM, Vulnerability management and Breach simulation and automated pen-testing. Quorum Cyber is also filed under Incident response and forensics, Security consulting and advisory and OT and ICS security.
  • Proficio lists ProSOC MDR, ProSOC MDR for Microsoft, Active Defense Response, Cyber Exposure Monitoring and Risk Based Vulnerability Management. 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.
  • Proficio was founded in 2010.

How they differ

CISO Tribune files both Proficio and Quorum Cyber under MDR and managed SOC as their primary category. Proficio sells ProSOC MDR, which combines 24/7 monitoring with SOC-as-a-Service powered by a Proficio-hosted SIEM. Proficio also sells ProSOC MDR for Microsoft, which is integrated with Microsoft Sentinel SIEM, along with Active Defense Response, Cyber Exposure Monitoring and Risk Based Vulnerability Management. CISO Tribune also files Proficio under SIEM, Vulnerability management, and Breach simulation and automated pen-testing. Proficio was founded in 2010.

Quorum Cyber sells Clarity Defend, a managed detection and response service with 24/7 monitoring, detection and response. Its other offerings include Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and Incident Response Services. CISO Tribune also files Quorum Cyber under Incident response and forensics, Security consulting and advisory, and OT and ICS security. Quorum Cyber is headquartered in Edinburgh, United Kingdom, and was founded there in 2016. It is a Microsoft Solutions Partner for Security and works with Microsoft Sentinel.

The two overlap in managed detection and response built around Microsoft Sentinel, and Proficio also offers a co-managed model alongside an existing Microsoft Sentinel or Splunk investment. Quorum Cyber adds OT monitoring and incident response retainers, while Proficio adds vulnerability management and breach and attack simulation. On September 16, 2026, Quorum Cyber announced a definitive agreement to acquire Ontinue, a managed extended detection and response provider. Quorum Cyber states that it protects 400+ organisations across four continents.

What it sells: Proficio

What ProSOC MDR does[1][4][6][7][8][9][14]
ProSOC MDR offers continuous security monitoring, advanced threat detection, automated response-as-a-service, risk-based vulnerability management and Dark Web monitoring. The Proficio-hosted SIEM generates security alerts based on Proficio Content from client security logs and events. Proficio forwards valid threats or risks to the client with summarized guided remediation.
What ProSOC MDR for Microsoft does[1][9]
ProSOC MDR for Microsoft Sentinel offers 24/7 monitoring, automated threat response and managed SIEM services. ProSOC MDR provides expert configuration, access to 300+ threat detection use cases and the Threat Intelligence Profiler for Microsoft Sentinel deployment.
What Active Defense Response does[1][4][6]
Active Defense for Endpoint isolates devices from the network, blocks malicious processes and removes artifacts. Proficio offers the option of automating the response to high priority threats by adding Active Defense Response to a ProSOC MDR service.
What Risk Based Vulnerability Management does[1]
Proficio Risk-Based Vulnerability Management identifies vulnerabilities, prioritizes them for resolution and offers a risk score benchmarked against similar companies in the healthcare industry. Proficio Risk-Based Vulnerability Management helps fulfill PCI requirements by identifying vulnerabilities and applying patches based on risk ranking. ProSOC MDR with Risk-based Vulnerability Management prioritizes vulnerabilities based on exploit risk in hospitality, asset criticality and known activity.

Questions about Proficio and Quorum Cyber

What do Proficio and Quorum Cyber sell?
Proficio sells ProSOC MDR, ProSOC MDR for Microsoft, Active Defense Response, Cyber Exposure Monitoring and Risk Based Vulnerability Management. Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
Are Proficio and Quorum Cyber in the same category?
Yes. MDR and managed SOC is the primary category of both on CISO Tribune.
Where are Proficio and Quorum Cyber headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
When were Proficio and Quorum Cyber founded?
Proficio was founded in 2010.
What have Proficio 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 Proficio

Proficio sells managed detection and response (MDR) services. Proficio offers a fully hosted, Proficio-managed platform or a co-managed model that works alongside an existing Microsoft Sentinel or Splunk investment. Proficio delivers Agentic AI SOC-powered cybersecurity services with 24/7 autonomous monitoring, AI-driven threat detection and automated response across all IT assets. Proficio operates 24/7 global Security Operations Centers staffed by certified analysts.[1][5][6]

ProSOC MDR offers continuous security monitoring, advanced threat detection, automated response-as-a-service, risk-based vulnerability management and Dark Web monitoring. Proficio combines 24/7 monitoring with SOC-as-a-Service powered by the Proficio-hosted SIEM to provide advanced threat detection, investigation and response alerting services. Proficio forwards valid threats or risks to the client with summarized guided remediation.[6][7]

Proficio's hosted SIEM collects client security logs and events and generates security alerts based on Proficio Content. Proficio's fully managed SIEM supports 350+ log sources. Proficio applies machine learning to reduce false positives, discover targeted or anomalous threats and initiate threat hunting activity. Proficio analysts use the MITRE ATT&CK Framework to analyze attacks as a set of behaviors. Proficio manages incident alerts through its ticketing system, ServiceNow. ProSOC MDR provides detailed incident investigations, guided remediation and access to real-time log data through the Proficio Threat Investigator Portal.[6][8]

ProSOC MDR for Microsoft Sentinel is a managed detection and response service integrated with Microsoft Sentinel SIEM, offering 24/7 monitoring, automated threat response and managed SIEM services. ProSOC MDR provides expert configuration, access to 300+ threat detection use cases and the Threat Intelligence Profiler for Microsoft Sentinel deployment. For a client-owned Splunk SIEM, either on-prem or cloud-hosted, Proficio delivers 24/7 security monitoring, advanced threat detection, automated response, managed SIEM services and implementation support. Proficio Managed SIEM applies to a client-owned Microsoft Sentinel or Splunk SIEM investment.[6][9]

Active Defense for Endpoint isolates devices from the network, blocks malicious processes and removes artifacts. Proficio Risk-Based Vulnerability Management identifies vulnerabilities, prioritizes them for resolution and offers a risk score benchmarked against similar companies in the healthcare industry. Proficio Breach and Attack Simulation Service simulates attacks to identify vulnerabilities and improve incident response preparedness.[1][8][10][11]

For endpoints, Proficio security experts use the client's EDR solutions to conduct in-depth forensic investigations and audit the affected device. ProSOC Identity Threat Detection and Response (ITDR) uses advanced behavior analysis to spot identity-based attacks that get past perimeter defenses. Proficio device experts take on security device management tasks. Proficio provides 24/7 health monitoring and optimization of security devices. Proficio professional services cover incident response and strategic guidance across the full cybersecurity lifecycle.[10][11]

ProSOC MDR is described for healthcare providers and payors. ProSOC MDR aligns with healthcare regulations like HIPAA by implementing industry-standard security practices. Proficio offers Managed Detection and Response services designed for hospitality businesses. Proficio offers its Managed Detection and Response Services to law firms and corporate legal departments. Proficio offers a portfolio of Managed Detection and Response services for manufacturing operations. ProSOC MDR is offered for financial services. Proficio offers solutions designed to address GLBA and FFIEC compliance requirements. Proficio solutions align with the NIST Cybersecurity Framework.[6][7][8][11][12][13][14][15]

Proficio on the record

Sources

Proficio full record

  1. [1]proficio.comProficio · proficio.com · undated page, accessed November 6, 2026 · Tier A
  2. [2]About usProficio · proficio.com · undated page, accessed November 6, 2026 · Tier A
  3. [3]Proficio named soc team of the yearProficio · proficio.com · published February 3, 2022 · Tier A
  4. [4]Next-Gen MDR & Agentic AI SOC Services | ProficioProficio · undated page, accessed November 10, 2026 · Tier A
  5. [5]Agentic AI SOC | Proficio – AI-Powered Managed Detection & ResponseProficio · undated page, accessed November 10, 2026 · Tier A
  6. [6]ProSOC XDR: SOC-as-a-Service powered by a fully-hosted SIEMProficio · undated page, accessed November 10, 2026 · Tier A
  7. [7]Safeguard Hospitality Data with ProSOC® MDRProficio · undated page, accessed November 10, 2026 · Tier A
  8. [8]ProSOC MDR: Proactive defense against cyber threats in the healthcare sectorProficio · undated page, accessed November 10, 2026 · Tier A
  9. [9]ProSOC® MDR for Microsoft Sentinel | 24/7 Threat Detection & ResponseProficio · undated page, accessed November 10, 2026 · Tier A
  10. [10]Resolve Endpoint Security Challenges with Proficio® ProSOC MDRProficio · undated page, accessed November 10, 2026 · Tier A
  11. [11]ProSOC MDR Services for Law Firms and Corporate Legal DepartmentsProficio · undated page, accessed November 10, 2026 · Tier A
  12. [12]ProSOC® MDR for Financial Services: Cybersecurity and Ransomware ProtectionProficio · undated page, accessed November 10, 2026 · Tier A
  13. [13]ProSOC® MDR Services: Cybersecurity for Manufacturing - Ransomware Protection & Active DefenseProficio · undated page, accessed November 10, 2026 · Tier A
  14. [14]Proficio Cybersecurity Solutions | Protecting Your Business from Cyber ThreatsProficio · undated page, accessed November 10, 2026 · Tier A
  15. [15]Strengthen Compliance Efforts with Expert MDR Services | ProficioProficio · 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

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