Deloitte Extends Lead in Global Security Services with 19% Revenue Growth
Event summary
- Deloitte ranked No. 1 in security services revenue for the third consecutive year, per Gartner's 2025 report.
- Security services revenue grew 19.1% in 2025, up from 17% in 2024.
- Global security services market expanded 11.5% to $84.4 billion in 2025.
- Deloitte captured 18.1% of the global security services market share in 2025.
The big picture
Deloitte's continued dominance in security services reflects broader industry trends toward AI-driven environments and complex digital ecosystems. The firm's multidisciplinary approach, combining cyber, technology, and risk capabilities, positions it as a key player in helping clients navigate modern transformation agendas. With the global security services market growing at 11.5%, Deloitte's ability to scale its offerings will be critical in maintaining its leadership position.
What we're watching
- AI Integration
- How Deloitte's AI-enabled cyber capabilities will impact its competitive positioning.
- Market Expansion
- Whether Deloitte can sustain its growth pace amid increasing competition in the security services sector.
- Regulatory Compliance
- The role of evolving governance demands in shaping future investments in cybersecurity services.
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