Quorum Cyber acquires Ontinue

● STRATEGIC | CYBERSECURITY · Security Operations

SEPTEMBER 17, 2026

Quorum Cyber (Eterna) acquires Ontinue (EQT)

TARGET

AI-powered MXDR platform using its ION agentic-AI engine to detect, investigate and respond to cyber threats across Microsoft environments for enterprises, NGOs and institutions in Europe and the US.

Ownership	PE-backed · EQT (prior owner)
Headcount	~218 FTEs
Headquarters	Zurich, Switzerland; Redwood City, California
Leadership	Moritz Mann, CEO
Sell-side advisor	Raymond James

ACQUIRER

Quorum Cyber

Microsoft-first managed cybersecurity services provider offering MXDR, incident response, and professional security services

Ownership	PE-backed · Eterna Growth Partners
Headcount	341 FTEs
Headquarters	Edinburgh, Scotland
Leadership	Kevin Hanes, Chief Executive Officer
Buy-side advisor	—

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Quorum Cyber -> Ontinue  (2026-09-18)
add_on | Cybersecurity | announced
Target: AI-powered MXDR platform using its ION agentic-AI engine to detect, investigate and respond to cyber threats across Microsoft environments for enterprises, NGOs and institutions in Europe and the US.
Website: ontinue.com | Buyer site: quorumcyber.com
HQ: Zurich, Switzerland; Redwood City, California | Ownership: pe-backed | Seller: EQT | Buyer sponsor: Eterna Growth Partners | Buyer ownership: pe-backed
Advisors - Sell-side: Raymond James
Source: Thematic - https://thematichq.com/software/d/quorum-cyber-ontinue.html

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