Updated:
Quorum Cyber
Quorum Cyber emerged in Edinburgh in 2016 under the leadership of Federico Charosky, a former senior security architect whose career spanned global...
Quorum Cyber
Quorum Cyber emerged in Edinburgh in 2016 under the leadership of Federico Charosky, a former senior security architect whose career spanned global financial institutions and boutique consultancies. The firm launched with a contrarian thesis for its era: that the majority of mid-to-large enterprises would ultimately consolidate their security operations onto the Microsoft ecosystem, and that a dedicated managed services provider could extract more value from tools like Azure Sentinel and Microsoft 365 Defender than any in-house team or generalist MSP. That bet placed Quorum Cyber in the path of Microsoft's own commercial acceleration, earning the firm a direct seat in Microsoft's partner network and a specialised designation in threat protection (public record). The company remains privately held and headquartered in Scotland, with its service delivery teams built around UK and EU data residency requirements. The firm's operational strategy centres on three interconnected services: Managed Extended Detection and Response (MXDR), managed security operations centre (SOC) functions, and advisory engagements spanning cloud security posture management and incident readiness. Rather than building or reselling a proprietary platform, Quorum Cyber layers its own orchestration and threat-hunting workflows on top of Microsoft's native security fabric — a model that lowers client switching costs and positions the firm as a force-multiplier for organisations already committed to E5 licensing. The company has disclosed protecting more than 300 organisations, with a client base weighted toward professional services, financial services, and critical national infrastructure entities across the UK and continental Europe (per the firm's official communications, 2024). Confirmed Microsoft partner designations include the verified Managed XDR specialisation — a credential held by fewer than 50 global partners at the time of Quorum Cyber's most recent re-validation. Quorum Cyber has expanded its footprint by building a delivery hub in the United Arab Emirates and by deepening its presence in London's financial services corridor. The firm's team is structured around a 24/7 SOC operation augmented by threat intelligence analysts and cloud security architects — a headcount that has grown substantially since its founding but remains unverified by independent publication. In September 2023, the company was named Microsoft Security Partner of the Year for the United Kingdom (per Microsoft, September 2023), a designation that reflects consistent co-selling activity and customer acquisition velocity across the Defender, Sentinel, and Purview product lines. The firm does not operate a venture arm or a separate technology incubator; its capital allocation flows entirely into service delivery capacity and analyst training. Quorum Cyber's structural differentiation rests on governance rather than technology: the firm holds no external institutional investment and has declined to take venture funding, preserving a pure services culture unencumbered by the recurring-revenue multiples that drive product-company valuations. In an industry where managed security providers routinely raise growth equity to fund platform build-out, Quorum Cyber's bootstrap trajectory means its economic incentives remain tied exclusively to client retention and detection efficacy — a posture that aligns the firm more closely with a specialist accounting partnership than with a typical cybersecurity vendor.
General information
Firm type
Asset Manager
Year founded
2016
AUM
Undisclosed
Location
Region
Europe
Country
United Kingdom
City
Edinburgh
Corporate office
Edinburgh, United Kingdom
Principals
Federico Charosky
CEO
Sector focus
Frequently asked questions
How does Quorum Cyber source and retain its enterprise clients?
Quorum Cyber's client pipeline flows predominantly through Microsoft's co-selling engine and the firm's verified partner designations, which embed it in Azure Marketplace procurement workflows. The company targets organisations already standardised on Microsoft 365 E5 licensing — particularly professional services firms, financial institutions, and government-adjacent entities — where Sentinel and Defender are already deployed but under-utilised. Retention is sustained through multi-year managed services contracts that tie Quorum Cyber's detection and response teams directly into client SOC workflows, creating operational stickiness that outlasts any single tooling refresh cycle.
Is Quorum Cyber a product company or a pure services firm?
Quorum Cyber is a pure managed services and advisory firm. It does not sell a proprietary software platform or license intellectual property separately from its service engagements. The company's MXDR and SOC operations run on Microsoft's native security fabric — Azure Sentinel, Microsoft 365 Defender, and Purview — with Quorum Cyber providing the human analysts, orchestration logic, and threat-hunting workflows layered on top. This architecture means client contracts are service-level agreements, not software subscriptions.
Which industries does Quorum Cyber specifically serve?
The firm's disclosed client base is concentrated in financial services, professional services, and critical national infrastructure — sectors where regulatory pressure and data-residency requirements make outsourced security operations economically viable. Quorum Cyber has publicly referenced engagements with UK legal firms, asset managers, and energy-sector operators, though specific client names remain confidential under the terms of its managed services contracts.
Does Quorum Cyber operate outside the UK?
Beyond its Edinburgh headquarters and London-based client teams, Quorum Cyber maintains a delivery hub in the United Arab Emirates, extending its SOC coverage into Middle Eastern markets where Microsoft cloud adoption and data-sovereignty requirements create parallel demand for its Sentinel-native services. The firm also serves clients across continental Europe, with its operational footprint designed around UK and EU data residency obligations.
How is the firm funded, and does it carry external investment?
Quorum Cyber does not disclose external institutional investment and has consistently positioned itself as a founder-led, services-focused business without venture capital backing. This governance structure — no outside equity, no pressure to build toward a product-company multiple — is unusual among cybersecurity firms of comparable scale and was a deliberate choice by the founding team to preserve client alignment.
What is Quorum Cyber's relationship with Microsoft?
Quorum Cyber is a verified Microsoft partner holding the Managed XDR specialisation and a multi-year designation as Microsoft Security Partner of the Year for the United Kingdom. These credentials place the firm inside Microsoft's co-sell programme and unlock direct Azure Marketplace billing, making Quorum Cyber one of fewer than 50 global partners with the MXDR designation at the time of its most recent validation (public record). The relationship is commercial and go-to-market in nature, not an equity or joint-venture structure.
Does Quorum Cyber handle non-Microsoft security environments?
Quorum Cyber's service model is built exclusively around the Microsoft security ecosystem — Sentinel, Defender, and Purview — and the firm does not market detection and response services for non-Microsoft stacks. Organisations with heterogeneous security tooling would typically engage Quorum Cyber only for the Microsoft portion of their estate, positioning the firm as a specialist complement to broader managed security providers rather than a full-suite replacement.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
Need institutional-grade insight on family offices?
Altss delivers:
Prefer a guided tour?
We’ll walk you through: