What Difenda does

Quorum Cyber is a Microsoft-first cybersecurity services provider headquartered in Edinburgh, UK, with additional offices in Denver, Tampa, and Goodyear (USA) and Oakville (Canada). The company delivers managed security, incident response, and professional consulting through its proprietary Clarity platform, which unifies monitoring, detection, and response across Microsoft security tools including Security Copilot, Defender XDR, Defender for IoT, and Purview. The platform and brand also extend to dedicated Microsoft Integration Services practices that monetize each tool individually.

The core product portfolio comprises five managed service offerings: Clarity Defend (24/7 managed detection and response), Clarity Extend (enhanced coverage across Microsoft Cloud and third-party technologies), Clarity Protect (proactive threat detection with Continuous Threat Exposure Management), Clarity Data & AI (data protection, insider threat mitigation, and AI risk governance), and Clarity OT (managed OT/ICS detection and response). These are supplemented by incident response retainers, emergency MDR, and a professional services catalog covering AI readiness, cloud security, identity security advisory, offensive security, cyber resilience assessment, and technical advisory.

Quorum Cyber serves enterprise clients across eight primary verticals, including financial services, higher education, housing associations, professional services, public sector, private equity, manufacturing, and retail and hospitality. Revenue is generated through recurring managed service subscriptions, project-based professional consulting, and incident response retainer arrangements. The company holds Microsoft Solutions Partner for Security designation, is a member of the Microsoft Intelligent Security Association (MISA), and has received multiple Microsoft awards including Partner of the Year and Impact Award. Go-to-market is direct enterprise field sales across the UK, US, and Canada with no visible channel partner distribution model.

Name

Difenda

Legal name

Quorum Cyber

Website

https://difenda.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

51–100 employees

Short description

Quorum Cyber is a Microsoft-first managed security services provider delivering 24/7 MDR, incident response, and professional services through its Clarity platform, serving enterprise clients across eight verticals in the UK, US, and Canada.

Ownership category

akta.pro rank

Product category

Managed Cybersecurity Services

NAICS

Computer Systems Design and Related Services (54151), Computer Facilities Management Services (541513)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Security Operations Center (SOC) as a Service (BPAEADAB)

akta.pro secondary industries

Endpoint Security Managed Services (EDR/XDR) (BPAEADAH), Secure Industrial Gateways, Data Diodes & Unidirectional Security (HDADAJAM), Data Security & Privacy Managed Services (DLP/Encryption) (BPAEADAL)

Keywords

• Managed security services
• Managed detection response
• Incident response services
• Microsoft security partner
• OT security services

Headquarters

HQ city

Oakville

HQ country

Canada

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Managed Security Services: Recurring managed security services including Clarity Defend, Extend, Protect, Data & AI, and OT offerings providing continuous monitoring, detection, and response capabilities
2. Professional Services: Consulting engagements including AI Readiness, Cloud Security, Cyber Resilience Assessment, Identity Security Advisory, Offensive Security, and Technical Advisory services
3. Incident Response Services: Incident response retainer, emergency MDR, and incident response preparedness services for organizations requiring rapid security incident support

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Difenda delivers Microsoft-first managed cybersecurity services through its proprietary Clarity platform, providing 24/7 monitoring, detection, and response across Microsoft Cloud, AI, and operational technology environments. The portfolio spans managed detection and response (Clarity Defend), enhanced detection and response (Clarity Extend), advanced detection and response with continuous threat exposure management (Clarity Protect), data protection and AI governance (Clarity Data & AI), and OT/ICS security (Clarity OT), complemented by incident response retainers and professional services including offensive security, identity advisory, and cyber resilience assessments.

Product overview

Quorum Cyber is a Microsoft-first cybersecurity services provider offering a unified platform of Clarity-branded managed security services. The core portfolio includes Clarity Defend (24/7 managed detection and response), Clarity Extend (enhanced coverage for Microsoft Cloud and third-party technologies), Clarity Protect (proactive threat detection for Microsoft and AI environments), Clarity Data & AI (data protection and AI governance), Clarity OT (operational technology security), and Phishing Protection. These services are delivered through the Clarity platform and are supported by professional services including AI Readiness, Cloud Security, Identity Security Advisory, Offensive Security, and Incident Response capabilities.

Differentiator

Problem solved

Functional benefit

Brands

• Clarity: Managed security services platform and suite of services including Clarity Defend (MDR), Clarity Extend (Enhanced Detection and Response), Clarity Protect (Advanced Detection and Response), Clarity OT (Managed OT Detection & Response), and Clarity Data & AI.

Products and services

• Clarity Defend Managed detection and response service providing 24/7 monitoring, detection, and response, 365 days a year, to defend enterprise Microsoft and multi-cloud environments from attack. Targeted at organizations needing foundational continuous SOC coverage.
• Clarity Extend Enhanced detection and response service that extends managed security coverage beyond the Microsoft Cloud environment to third-party technologies across the entire IT ecosystem, for organizations seeking unified cross-platform detection.
• Clarity Protect Advanced detection and response service that proactively detects and stops threats, reduces cyber risk, and strengthens security posture across Microsoft and AI environments, intended for organizations that need threat-led defense beyond standard MDR.
• Clarity Protect: CTEM Continuous Threat Exposure Management (CTEM) service that provides proactive threat detection and ongoing exposure reduction to lower the organization's attack surface.
• Clarity Data & AI Service that helps organizations understand, protect, and govern data, reduces exposure to insider threats and AI-related risks, and builds a secure foundation for responsible AI adoption.
• Clarity OT Managed Operational Technology Detection and Response service for industrial control systems and OT environments, addressing the security needs of manufacturing and critical infrastructure operators.
• Phishing Protection Managed protection service defending enterprise users from phishing attacks.
• Incident Response Services Suite of incident response services covering incident response preparedness, incident response retainer, emergency MDR, and brand and credential monitoring for organizations needing rapid response to active security incidents.
• Incident Response Retainer Pre-arranged retainer guaranteeing priority access to incident response capabilities during active security incidents.
• Emergency MDR Emergency managed detection and response service providing surge support during active security incidents for organizations without an established SOC relationship.
• Incident Response Preparedness Service helping organizations develop, document, and test incident response plans and playbooks in advance of security incidents.
• AI Readiness Advisory service that prepares organizations to adopt AI securely by assessing AI-related risks, defining governance frameworks, and enabling responsible AI deployment.
• Cloud Security Advisory and implementation service securing Microsoft Cloud and adjacent cloud platforms, including architecture review, configuration hardening, and cloud security posture management.
• Cyber Resilience Assessment Assessment service that evaluates an organization's ability to prevent, withstand, and recover from cyber attacks, producing a resilience posture report.
• Identity Security Advisory Advisory service focused on hardening identity and access management controls across Microsoft identity platforms, addressing credential theft and privilege escalation risks.
• Offensive Security Offensive security testing service including penetration testing, red team exercises, and adversary simulation against enterprise Microsoft environments.
• Operational Technology Security Advisory service helping organizations secure operational technology and industrial control system environments, including assessment, segmentation, and monitoring guidance.
• Security Maturity Assessments Assessment service that benchmarks an organization's security program maturity against industry frameworks and produces a prioritized improvement roadmap.
• Technical Advisory: Security Design and Optimisation Technical advisory service focused on designing, implementing, and optimizing Microsoft security architectures and operational processes.
• Cyber Security Leadership Services Advisory service providing executive-level cybersecurity leadership, including fractional CISO support, security strategy development, and board-level security guidance.

Quantifiable outcome

• Organizations achieve stronger defense through threat-led security services

Segments8 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• MicrosoftcoreTechnology or IntegrationMicrosoft-first security provider with deep integration into Microsoft security stack including Security Copilot, Defender XDR, Defender for IoT, and Purview. Solutions Partner for Security with multiple Microsoft awards including Partner of the Year and Impact Award. Member of Microsoft Intelligent Security Association (MISA).

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• BlueVoyant: Globally distributed MSSP with a strong Microsoft security focus offering MDR, threat intelligence, and supply chain defense. Most directly comparable peer given similar Microsoft-first positioning, managed services model, and enterprise customer profile.
• Arctic Wolf: MDR and security operations provider delivering 24/7 managed detection and response via a subscription model. Comparable in recurring managed services delivery and enterprise/SMB cross-vertical reach.
• Expel: Pure-play MDR/transparency-focused managed detection and response provider with similar subscription-based service tiers. Closely comparable in service delivery model and target mid-market/enterprise buyer.
• eSentire: Managed detection and response and security operations center provider serving mid-market and enterprise customers across multiple verticals. Closely comparable size, geographic scope, and 24/7 SOC-as-a-service model.
• ReliaQuest: MSSP offering security operations across hybrid and multi-cloud environments with emphasis on detection, investigation, and response. Comparable in recurring managed services and enterprise-focused delivery.
• WithSecure: European-headquartered cybersecurity company offering managed detection and response and security operations services. Comparable in MSSP business model and Microsoft-aligned enterprise security delivery.

Broad incumbents

• Optiv: Large-scale cybersecurity solutions integrator and MSSP with deep Microsoft partnership and broad enterprise portfolio. Broader incumbent with overlapping managed security offerings but wider scope than Quorum's Microsoft-first niche.
• Secureworks: Established MSSP offering managed detection, response, and security operations at global scale. Comparable in core MDR/SOC service delivery but operates as a much larger incumbent with broader vendor coverage.
• Trustwave: Global MSSP and MDR provider with managed security services, threat intelligence, and incident response. Comparable recurring managed services and enterprise client base, though with broader vendor and service breadth.
• CrowdStrike: Endpoint and extended detection and response platform vendor that has expanded into MDR services (Falcon Complete). Overlaps with Quorum in EDR/XDR-led managed security but operates as a much larger incumbent with proprietary technology.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/difenda_
• LinkedInlinkedin.com/company/difenda

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Difenda