Since its inception in Edinburgh in 2016, Quorum Cyber has flourished into an international cyber security leader with a team spanning the UK, Canada, the US, and the Middle East. Today, over 350 team members provide a comprehensive range of managed and professional cyber security and data security services protecting hundreds of private, public, and not-for-profit customers around the globe.
In 2024, the company achieved several major milestones on its mission to creating a safer digital world, where good people win against cybercriminals.
Acquisition of Difenda
In September, Quorum Cyber announced arguably the most notable news in its eight-year history: the acquisition of Difenda, a Canada-headquartered, full-stack Microsoft Security managed services company. This strategic move underscores Quorum Cyber’s growth momentum and strengthens its global position as a leader of Microsoft Security services. Customers now have access to an unrivalled range of end-to-end cyber security services delivered by an international team of over 330 highly qualified experts.

In another major milestone, Charlesbank, a US-based private equity firm with an outstanding track record, injected fresh investment into Quorum Cyber in June. This partnership propels Quorum Cyber’s drive to elevate existing services while offering exciting and innovative new services to its global customer base.
With the backing of its investors, from December 31st, 2023, to December 31st, 2024, Quorum Cyber increased its revenue run rate from £21.6 million to £31.3 million and its recurring customer numbers from 101 to 156, rises of 45% and 54% respectively.
Revamping managed security services – and launching new ones
In the second half of 2024, Quorum Cyber revamped its range of managed services to help defend organisations of any size in any sector – wherever they are on their cyber security journey. Titled Clarity Defend, Clarity Extend, Clarity Protect, and Clarity Data, our range of managed security services help to safeguard organisations from the ever-evolving threat landscape.
Quorum Cyber also released a Cyber Resilience Assessment to give customers a deep understanding of their current cyber security posture and exposure to risk. As a threat-led cyber security leader, it also recruited a dedicated Threat Hunting team to proactively hunt cyber threats to stop threat actors in their tracks.
New awards and accolades
In March, Microsoft announced that Quorum Cyber was a double-award finalist for its Security MSSP of the Year and Security Customer Champion awards in the Microsoft Security Excellence Awards. This was the second year running that Quorum Cyber made the final round for two Microsoft Excellence Awards, having reached the final of Security Services Innovator and Security Changemaker in 2023.
Further boosting its credentials with Microsoft, in November it was awarded the Microsoft Information Protection and Governance specialization, which validates it as a leading partner for data security and Microsoft Purview related services. Quorum Cyber now holds three Microsoft Security specialisations: Threat Protection, Cloud Security, and Information Protection and Governance.
And earlier in the year, Quorum Cyber was proud to announce its new status as a Microsoft FastTrack-ready partner. This designation made it a premier provider of security solutions, offering unmatched expertise in the deployment and management of Microsoft security technologies.
In October, MSSP Alert, a leading online resource focused on managed security services providers (MSSPs) and the broader cyber security ecosystem, placed Quorum Cyber in its annual MSSP league table. Quorum Cyber rose nine places from 2023 and almost 100 places since 2022. Recent acquisition, Difenda, was also included in the league table.
Closing out the year, Quorum Cyber was named a national winner of the British Private Equity and Venture Capital Association’s Vision Awards, a testament to the company’s exceptional growth performance. The judges commended its competitiveness, innovation, and environment, social, and governance (ESG) principles.
Recognised and respected services
Another huge win for Quorum Cyber in 2024 was Gartner naming it in its 2024 Market Guide for Managed Detection and Response. The guide provides in-depth studies, best practices, and trend analysis to improve business performance. As one of only two named UK vendors, Gartner recognised Quorum Cyber as being:
- Consistently visible to Gartner clients
- Variable in size and distribution as to reflect the buying population
- Having a clear end-user and outcome-focused offering distinct from pure technology-driven offerings.
This was a huge testament to Quorum Cyber’s position in the managed detection and response (MDR) market.
In March, Quorum Cyber brought together 90 of its closest customers from a wide range of sectors together with representatives from Microsoft in Edinburgh for Quorum Cyber Summit. With the theme, ‘Navigating the Future of Cyber Security Together’, the Summit enabled cyber security professionals to learn from Quorum Cyber’s experts, network, and share ideas and solutions with peers, and hear the latest developments from Microsoft.

Intelligence breakthroughs and fresh thought leadership
In terms of content and threat intelligence research, Quorum Cyber was on fire this year, releasing new papers and thought leadership which garnered broad international coverage.
At the start of the year, the company launched its second annual Threat Intelligence Outlook report to provide a strategic overview of developing cyber threats, where they originate from, why, and how they are likely to surface and manifest throughout the calendar year. The report was widely received as a valuable source of key insights into geopolitics and its link to cybercriminals and cyber-attacks, and for its useful sector-specific threat intelligence for organisations worldwide. The Threat Intelligence Outlook 2024 will be followed in January by the Quorum Cyber Global Cyber Risk Outlook Report 2025.
In the summer, Quorum Cyber discovered a new malware variant, dubbed SharpRhino. This cyber intelligence breakthrough into a criminal gang’s tactics and techniques attracted a lot of publicity in the international cyber security community. News of the discovery of a new remote access trojan (RAT) used by notorious cybercrime group Hunters International to breach corporate networks was publicised on over 25 cyber security and intelligence websites in North America and the UK.
The company launched its whitepaper, Transforming Security Spending: A Forward-Looking Guide for CISOs, looking at the myriad challenges that Chief Information Security Officers (CISOs) face today and offers a better way for them to manage budgets while strengthening their organisation’s cyber security and cyber resilience.
It also published a follow-up whitepaper, Mastering Cost Management and Reduction: A Guide for Chief Information Security Officers in Higher Education, which considers practical cost management tactics tailored to leaders in Higher Education.
Ready to help you win 2025
After a trailblazing 2024, the work doesn’t stop there. As an award-winning Microsoft Solutions Partner for Security – equipped with over 300 cyber security professionals in Europe and North America – Quorum Cyber has the expertise, experience, scale, and reach to defend and protect any organisation in any sector before, during, and after any kind of cyber incident anywhere in the world.
Contact us to discuss how we can help you win in 2025.
















