Quorum Cyber Agreed to Acquire Ontinue
The Microsoft-focused security firms plan to merge operations to scale managed detection and response services globally.
Updated on Sept. 29, 2026 in Cybersecurity
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Quorum Cyber has announced an agreement to acquire fellow Microsoft security provider Ontinue. Both companies will continue to operate independently until the acquisition officially closes.
Why it matters
The merger aims to integrate AI tools into security operations to better manage growing alert volumes at machine speed across international markets. It significantly expands the footprint of the combined entity in North America, the UK, and the DACH region.
Ontinue holds a five-time Microsoft Gold Partner status, while Quorum Cyber was named Microsoft Security MSSP of the Year for 2025. The companies intend to combine Quorum Cyber's incident response services with Ontinue's managed extended detection and response platform.
The players
Quorum Cyber
An Edinburgh-based cybersecurity provider specializing in incident response and Microsoft security services.
Ontinue
A cybersecurity firm providing managed extended detection and response services with a history of Microsoft Gold Partnership.
Eterna Growth Partners
A private investment firm serving as the current majority stakeholder in Quorum Cyber.
The details
The acquisition combines Quorum Cyber's professional incident response services with Ontinue's managed extended detection and response (MXDR) — a security approach that automatically collects and correlates data across email, endpoints, servers, and cloud workloads. By integrating these capabilities, the firms aim to utilize AI tools to process security alerts at machine speed. Eterna Growth Partners will maintain its position as the majority investor in the combined organization.
Timeline
2025: Quorum Cyber named Microsoft Security MSSP of the Year.
September 29, 2026: Announcement of the acquisition agreement.
The Tech Race
This acquisition reflects a wider industry trend of consolidating managed security service providers (MSSPs) within the Microsoft ecosystem to capture greater market share. The merger positions the combined entity to compete by offering a broader geographic reach and deeper integration of AI-driven security tools.
For current customers of both firms, operations will remain unchanged until the transaction clears the required regulatory approvals. Following the closing, clients can expect expanded service availability across North America, the UK, and the DACH region.
The takeaway
The merger highlights the increasing reliance on AI-driven platforms to handle high volumes of security threats in real-time. Watch for future updates on the transaction's closing date and the formal integration timeline of the combined service offerings.
Further reading
For more context on how market consolidation is shaping security operations, explore our Cybersecurity section.
Source note: This article includes information reported by ChannelLife Australia.
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