Quorum Cyber
Quorum Cyber is a Microsoft-first cybersecurity services provider founded in 2016 in Edinburgh, delivering managed detection and response, incident response, and advisory services through its Clarity platform to enterprises and public sector organizations across North America, the UK, Europe, and the Middle East.
- Company typePrivate
- Founded2016
- HeadquartersEdinburgh, United Kingdom
- Headcount251–500
- GTM typeB2B
- OfferingServices
What Quorum Cyber does
Quorum Cyber is a privately held, Edinburgh-headquartered cybersecurity services provider founded in 2016 that operates an exclusively Microsoft-first delivery model. The company delivers managed detection and response, incident response, and professional services through its Clarity platform, which integrates natively with Microsoft Sentinel, Defender XDR, Microsoft Purview, Microsoft Entra, Defender for Cloud, and Defender for IoT, and provides customers with a unified portal for real-time visibility and incident management. Its managed services portfolio spans Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT, and Phishing Protection, supplemented by incident response retainers, emergency MDR, offensive security, identity security advisory, cloud security, AI readiness, and vCISO leadership services. It holds all four Microsoft Security specializations, is a MISA member, and was named Microsoft Security MSSP of the Year 2025.
The company serves enterprise and public sector customers across financial services, higher education, housing associations, public sector, professional services, private equity, manufacturing, and retail and hospitality, with named logos including Hastings Direct, Greggs, Domino's, Frasers Group, Forest River, University of Cumbria, Queen Mary University of London, and the City of Westminster. It operates offices in Edinburgh, Denver, Tampa, Goodyear, and Oakville, and serves customers across North America, the UK, Europe, and the Middle East. The business model combines recurring subscription managed services (per-user and per-site pricing), incident response retainers, and project-based professional services.
Quorum Cyber is backed by private equity firms Charlesbank Capital Partners and Livingbridge, which supported the acquisitions of Difenda (September 2024) and Kivu Consulting (January 2025) to expand North American presence and incident response capability. The company employs 251-500 staff, claims 1,000+ combined years of Microsoft and cybersecurity experience, and is NCSC and CREST certified for incident response and offensive security. It was named a Gartner Representative Vendor for MDR Services and has won multiple industry awards in 2025-2026 including the Globee Best Cybersecurity Service Provider of the Year and ScotlandIS Digital Technology Business of the Year.
Quorum Cyber firmographics
Firmographics- Name
- Quorum Cyber
- Legal name
- Quorum Cyber
- Website
- https://quorumcyber.com
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- Quorum Cyber is a Microsoft-first cybersecurity services provider founded in 2016 in Edinburgh, delivering managed detection and response, incident response, and advisory services through its Clarity platform to enterprises and public sector organizations across North America, the UK, Europe, and the Middle East.
- Ownership category
- akta.pro rank
Quorum Cyber industry classification
Industry- Product category
- Managed Cybersecurity Services
- NAICS
- Computer Systems Design and Related Services (5415), 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), Cloud Security Managed Services (CSPM/CWPP/CNAPP) (BPAEADAF), Cloud Workload Protection Platforms (CWPP) (HDADADAC), Cloud Network Security (Microsegmentation, Cloud Firewall) (HDADADAH)
Keywords
Where Quorum Cyber is headquartered
LocationHeadquarters
- HQ city
- Edinburgh
- HQ country
- United Kingdom
- HQ region
- Europe
Offices5 records
Markets served
Quorum Cyber business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Managed Security Services: Recurring subscription-based managed detection and response services delivered through Clarity platform. Services include Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT, and Phishing Protection. Revenue generated through annual or multi-year subscription contracts with per-user or site-based pricing.
- Professional Services: Advisory and implementation services including AI Readiness, Cloud Security, Cyber Resilience Assessment, Identity Security Advisory, Offensive Security, Operational Technology Security, Security Maturity Assessments, Technical Advisory, and Microsoft Integration Services. Typically project-based engagements.
- Incident Response Services: Digital forensics and incident response team services including emergency MDR, incident response retainer, ransomware negotiation, threat containment and recovery. Can be retainer-based (ongoing access) or engagement-based (specific incident response).
- Incident Response Retainer: Ongoing retainer providing 24/7/365 protection, accelerated response times, strategic insight, and tactical support for cyber incidents. Customers pay for guaranteed access to IR team when needed.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Per seat | Annual | Scalable per-user subscription for Phishing Protection |
| Subscription | Annual | Site-based pricing for OT security services |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
Quorum Cyber product offering
Product offeringCore offering
Quorum Cyber provides 24/7 managed cybersecurity services built on Microsoft Security technologies, delivered through its proprietary Clarity platform. The offering includes managed detection and response (Clarity Defend, Extend, Protect, OT), incident response (DFIR, retainers, emergency MDR), and professional services (AI readiness, offensive security, identity advisory, cloud security). All services are threat-led and targeted at enterprise and public sector organizations.
Product overview
Quorum Cyber is a Microsoft-first cybersecurity services provider offering a unified platform called Clarity that underpins their managed security services portfolio. The Clarity platform serves as the central hub connecting multiple specialized services including Clarity Defend (managed detection and response), Clarity Extend (enhanced detection and response for multi-cloud), Clarity Protect (advanced threat prevention), Clarity Data & AI (data and AI security), and Clarity OT (OT/ICS security). Beyond the Clarity managed services suite, the company provides professional services including Incident Response (DFIR, preparedness, retainers, emergency MDR), AI Readiness assessments, Cloud Security, Offensive Security, Identity Security Advisory, and specialized Microsoft integration services (Security Copilot, Defender XDR, Defender for IoT, Microsoft Purview). The company also offers Phishing Protection and Brand and Credential Monitoring as distinct security services. All services are delivered with a threat-led approach, leveraging Microsoft's security technology stack and the Clarity customer portal for real-time visibility and incident management.
Differentiator
Problem solved
Functional benefit
Brands
- Clarity: Quorum Cyber's customer platform and managed security services brand, including Clarity Defend (Managed Detection and Response), Clarity Extend (Enhanced Detection and Response), Clarity Protect (Advanced Detection and Response), and Clarity Data & AI services.
Products and services
- Clarity Defend - Managed Detection and Response
- Clarity Extend - Enhanced Detection and Response
- Clarity Protect - Advanced Detection and Response
- Clarity Data & AI
- Clarity OT - Managed OT Detection and Response
- Phishing Protection
- Continuous Threat Exposure Management (CTEM)
- Incident Response Services (DFIR)
- Incident Response Retainer
- Emergency MDR
- Incident Response Preparedness
- Brand and Credential Monitoring
- AI Readiness Services
- Cloud Security Services
- Cyber Resilience Assessment
- Cyber Security Leadership Services
- Identity Security Advisory
- Offensive Security
- Operational Technology Security Advisory
- Security Maturity Assessments
- Technical Advisory - Security Design and Optimisation
- Microsoft Security Copilot Services
- Microsoft Defender XDR Services
- Microsoft Defender for IoT Services
- Microsoft Purview Services
Quantifiable outcome
- 32% decrease in cyber insurance premiums
- +1 more outcomes
Companies that use Quorum Cyber
Customer profileNamed customers31 records
Segments8 records
Ideal customer profiles8 records
Quorum Cyber technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration14 records
AI capability9 records
Feature8 records
Quorum Cyber partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- Kivu ConsultingcoreCybersecurity consulting firm acquired in January 2025 to expand Quorum Cyber's cybersecurity capabilities. Transaction supported by Charlesbank and Livingbridge investment.
- DifendacoreCanadian-based Microsoft Security Managed Services company acquired in September 2024 to expand Quorum Cyber's North American presence. Difenda was a Microsoft Solutions Partner for Security with customer base across various industries in North America.
- MicrosoftcoreSolutions Partner for Security with all four Microsoft Security specializations. Member of Microsoft Intelligent Security Association (MISA). Collaborates with Microsoft DART on critical security incidents. Co-develops and co-sells Microsoft security solutions including Sentinel, Defender XDR, Purview, and Defender for IoT.
Scale indicators8 records
Recent moves7 records
Expansion highlights6 records
Quorum Cyber competitors and assessment
Company assessmentDirect peers
- eSentire: Pure-play MDR / MSSP offering 24/7 SOC services across multiple technology stacks. Direct competitor to Quorum Cyber's Clarity Defend and Clarity Extend services for mid-market and enterprise customers.
- Trustwave: Global MDR / MSSP with strong incident response, managed detection, and database security offerings. Comparable to Quorum Cyber's breadth of managed services plus SpiderLabs-led IR expertise.
- Arctic Wolf: Leading MDR provider delivering managed detection, response, and security operations as a subscription service. Comparable to Quorum Cyber in service model, customer profile (mid-market to enterprise), and recurring revenue economics.
- Optiv Security: Large MSSP providing managed security services, advisory, and integration across multiple vendor stacks. Comparable to Quorum Cyber's blend of managed services, advisory, and Microsoft integration professional services.
- WithSecure (formerly F-Secure): European-headquartered cybersecurity firm offering managed detection, response, and consulting services. Comparable to Quorum Cyber's managed services plus advisory and incident response mix, with similar EMEA enterprise focus.
- ReliaQuest: Enterprise-focused MDR provider built on a proprietary platform (GreyMatter) integrating multiple SIEM and EDR tools. Highly comparable to Quorum Cyber's Clarity platform approach of unifying security operations across multi-vendor environments.
- Kudelski Security: Switzerland-based MSSP offering MDR, incident response, and cyber advisory across Europe and the US. Comparable to Quorum Cyber's transatlantic managed services and cybersecurity consulting model.
- BAE Systems Applied Intelligence: Global managed security services provider with strong presence in financial services and government. Comparable to Quorum Cyber's enterprise-grade MDR, incident response, and regulated-industry focus.
Broad incumbents
- Sophos (Managed Security Services): Established cybersecurity vendor expanding into MDR/SOC services via Sophos MDR. Overlaps with Quorum Cyber's 24/7 managed detection capabilities but competes from a broader product portfolio.
Regional players
- NCC Group: UK-headquartered cybersecurity services firm with strong incident response, MDR, and assurance offerings. Closest UK-headquartered peer to Quorum Cyber, competing for the same enterprise and public sector engagements.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Quorum Cyber social profiles
Digital presenceQuorum Cyber compliance and trust
Trust signalCompliance8 records
Quorum Cyber financial estimates
Financial estimateRevenue estimate
Valuation estimate
Quorum Cyber leadership team
Management profileNumber of profiles
Profiles4 records
Quorum Cyber subsidiaries and ownership
Company hierarchySubsidiaries2 records
Quorum Cyber funding detail
Funding detailFunding overview
Funding rounds2 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Quorum Cyber M&A and investment
M&A and investmentM&A3 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Quorum Cyber
What does Quorum Cyber do?
Quorum Cyber provides 24/7 managed cybersecurity services built on Microsoft Security technologies, delivered through its proprietary Clarity platform. The offering includes managed detection and response (Clarity Defend, Extend, Protect, OT), incident response (DFIR, retainers, emergency MDR), and professional services (AI readiness, offensive security, identity advisory, cloud security). All services are threat-led and targeted at enterprise and public sector organizations.
Is Quorum Cyber a public or private company?
Quorum Cyber is a private company. It is classified as private equity controlled and is currently operating.
When was Quorum Cyber founded?
Quorum Cyber was founded in 2016. It employs 251 to 500 people.
Where is Quorum Cyber based?
Quorum Cyber is headquartered in Edinburgh, United Kingdom, in the Europe region.
How does Quorum Cyber make money?
Four revenue lines are on record. Managed Security Services are the primary driver. The others are professional Services, incident Response Services and incident Response Retainer.
Who are Quorum Cyber's main competitors?
Direct peers on record are eSentire, Trustwave, Arctic Wolf, Optiv Security, WithSecure (formerly F-Secure), ReliaQuest, Kudelski Security and BAE Systems Applied Intelligence. Sophos (Managed Security Services) is listed as a broad incumbent. NCC Group is listed as a regional player.
Does Quorum Cyber have an API?
No public API is recorded for Quorum Cyber.
What industry is Quorum Cyber in?
Quorum Cyber's product category is Managed Cybersecurity Services. Its primary akta.pro industry code is BPAEADAB, Security Operations Center (SOC) as a Service, with a secondary code of BPAEADAH, Endpoint Security Managed Services (EDR/XDR). Its NAICS code is 5415 and its SIC code is 7370.