Booz Allen Hamilton has announced a definitive agreement to acquire Defy Security as a wholly owned subsidiary. Through this strategic move, Booz Allen aims to strengthen its global commercial cybersecurity offerings while expanding its reach across key industries including financial services, healthcare, life sciences, manufacturing, energy, retail, and technology. As cyber threats continue to evolve, enterprises increasingly demand integrated, technology-driven security solutions. Therefore, this acquisition positions Booz Allen to deliver more comprehensive, end-to-end cyber services to both U.S. and international markets.
Notably, Defy Security brings an established customer base, strong vendor partnerships, and specialized sales expertise. Meanwhile, Booz Allen contributes deep industry knowledge and advanced cybersecurity tradecraft developed across commercial and federal sectors. As a result, the combined organization expects to accelerate innovation and scale delivery of cyber products and services. For example, Booz Allen plans to expand adoption of its AI-powered malware analysis platform while maintaining strict compliance, governance, and security standards.
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“Together Booz Allen and Defy Security will unlock new market opportunities, accelerate innovation, and help our customers protect their most critical assets in a fast-paced threat environment.” — Andrew Turner, Head of Global Commercial, Booz Allen
Additionally, the acquisition supports Booz Allen’s ongoing international expansion strategy. In particular, the company expects stronger market penetration in the United Kingdom and European Union. Consequently, a broader global customer base will gain access to advanced cyber defense services and technology solutions.
“This acquisition helps us deliver resilient cybersecurity services and technologies for leading enterprises like never before,” said Andrew Turner, executive vice president and head of Booz Allen’s global commercial business. “Together Booz Allen and Defy Security will unlock new market opportunities, accelerate innovation, and help our customers protect their most critical assets in an increasingly fast-paced threat environment.”
Defy Security operates from its headquarters near Pittsburgh, Pennsylvania, and maintains an additional office in San Ramon, California. The company employs around 100 cybersecurity professionals, including engineers, solution architects, and sales specialists. Because of this skilled workforce, Booz Allen gains immediate access to specialized talent that can support rapid service expansion and product development initiatives.
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“We founded Defy Security to reimagine the way commercial enterprises buy and scale cyber technology,” said Justin Domachowski, founder and CEO of Defy. “Combining Booz Allen’s deep technical qualifications and global reach with our leading cyber solutions and talent opens incredible opportunities to support global customers in new ways. We could not be more excited about the road ahead.”
The transaction is expected to close during the first quarter of Booz Allen’s fiscal year 2027, pending regulatory approvals and standard closing conditions. However, both companies have chosen not to disclose financial terms of the agreement.
Several advisory firms supported the transaction. Booz Allen worked with AGC Partners as its financial M&A advisor, PwC for accounting and tax advisory, King & Spalding for legal advisory, and Oliver Wyman for strategic industry advisory. Meanwhile, Defy Security partnered with J.P. Morgan Securities LLC as financial advisor and Choate, Hall & Stewart LLP for legal support. Additionally, Defy Security receives backing from Sverica Capital, which focuses on scaling lower middle-market technology companies into industry leaders.
Overall, this acquisition reflects continued consolidation in the cybersecurity sector. Moreover, it highlights how enterprises increasingly demand integrated security platforms capable of addressing modern threat complexity across global digital ecosystems.
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