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In another sign of growing consolidation in the industrial cybersecurity marketplace, Nozomi Networks has announced it will be acquired by Mitsubishi Electric. Nozomi Networks, founded in Europe in 2013 by researchers focused on industrial/OT control systems security, is best known for its primary product, Guardian—a behavior-based asset inventory and anomalous message detection solution that leverages passive and active scanning, behavioral analytics, and signature methods.
Nozomi will become a wholly owned subsidiary operating independently of Mitsubishi Electric, so the acquisition is not expected to affect the company’s many existing agreements. According to press sources, the deal is valued at around $1 billion, although no official figure is disclosed in the press release. The acquisition has the potential to significantly expand Nozomi’s reach and presence in the market.
From the Press Release
Nozomi Networks, the global leader in OT, IoT, and CPS security, and Mitsubishi Electric Corporation today announced they have signed a definitive agreement whereby Mitsubishi Electric will acquire Nozomi Networks. Upon close, Nozomi Networks will be a wholly owned subsidiary, operating independently of Mitsubishi Electric. This acquisition accelerates Nozomi’s industrial cybersecurity innovation while maintaining the company’s heterogeneous approach to supporting customers and partners.
Mitsubishi Electric participated in Nozomi’s $100M Series E funding round, announced in March 2024, and the two companies have since collaborated on innovation and go-to-market efforts. This history laid the foundation for the transaction.
The acquisition brings Mitsubishi Electric a strong and growing AI-powered, cloud-first cybersecurity software business with an award-winning track record of scalable innovation. Nozomi’s world-class leadership and engineering teams, as well as its record of financial success, will strengthen Mitsubishi Electric’s ability to deliver advanced solutions to customers worldwide.
With more than 100 years of global industrial OT and IoT experience, Mitsubishi Electric will support Nozomi’s continued cybersecurity innovation and strong business growth while enabling both companies to accelerate digital transformation for critical infrastructure and industrial organizations worldwide.
The companies share a vision around leveraging data and context from OT/IoT environments, paired with robust artificial intelligence, to deliver more effective cyber defenses and material operational improvements for customers. Both also share a strong commitment to customer success, a partner-first business model, and a corporate culture that values and supports employees.
The acquisition is expected to close in the fourth calendar quarter of 2025. Upon close, Nozomi will maintain its headquarters in San Francisco, California, and research and development in Mendrisio, Switzerland.