Ontinue
Ontinue provides managed detection and response services for Microsoft security customers.
- Categories
- Managed detection and response, Managed security services, Incident response, Security consulting and vCISO
- Based in
- Redwood City, United States
- Ownership
- Owned by Quorum Cyber since 2026
About Ontinue
Ontinue provides managed detection and response services, focusing on Microsoft security tools. It sells to organisations that use Microsoft Defender and Sentinel, including those in financial services, healthcare, manufacturing, retail, and NGOs. The service aims to resolve most incidents without customer involvement. The company operates a 24/7 Cyber Defense Center and uses an AI-first platform that combines automation with human expertise. It offers tailored escalation paths and risk-based guidance to help customers improve their security posture. Ontinue also helps optimise Microsoft investments by reducing ingestion costs and consolidating legacy tools.
Products
- Ontinue IONAn AI-powered managed extended detection and response platform for Microsoft security customers.
- ION Cyber Defense CenterA global security operation that combines experts, data scientists, and automation engineers for round-the-clock protection.
Ownership and deals
- Quorum Cyber acquired OntinueReport on Quorum Cyber buying Ontinue (opens in a new tab)
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.