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Deloitte ranked No. 1 in Security Services by revenue in the 2024 Gartner® Market Share: Security Services, Worldwide, 2023 report

NEW YORK, NY, USA, 6 August 2024 — Deloitte is ranked No.1 in the inaugural Gartner® Market Share: Security Services, Worldwide, 2023 report. This report has expanded to cover Security Consulting Services (TCT), Security Professional Services (SPS) and Managed Security Services (MSS).

Emily Mossburg, Deloitte Global Cyber leader, says, “We believe that this ongoing acknowledgement underscores the strength of Deloitte’s security services in helping our clients transform their business. With an eye on organisational resilience, Deloitte continues to build solutions that advance cyber and security approaches.”

According to the Gartner Security Services 2023 market share report, Gartner estimates that the overall Security services market to be at $65.5 billion with a growth of 13.6% in 2023. As per the report, Deloitte has the largest market share with 16.7% of the Security services market globally. In the Security Consulting market, a sub-segment of the Security services, Deloitte has a market share of 30.7% globally and increasing its market share from last year’s 29.6%. Deloitte has the 2nd largest Market share this year in the Security Professional Services sub-segment and has the 3rd largest Market Share in the Managed Security Services sub-segment.


Heather Stockton, Deloitte Global Consulting Services, Technology & Transformation leader, says, “Our ongoing expansion of capabilities is designed to assist clients in addressing their unique business requirements and the swiftly evolving challenges they encounter. Our comprehensive services—including advisory, implementation and operations—combined with our global reach, equip clients to operate securely in today’s environment while building for the future."

Notable highlights of Deloitte’s Cyber investments from the past year include:


  • Significant investment in managed security services offerings through the launch of CyberSphere, a vendor-neutral integrated cybersecurity platform
  • Acquisitions to drive geographic scaling such as Paraflare in Australia and Webrage in Japan
  • Launch of ConvergeSECURITY with AWS, which  empowers enterprises to accelerate their Cloud Transformation efforts
  • Expansion of the Women in cyber campaign in collaboration with The Female Quotient to spotlight the imperative of greater diversity in the cyber industry, now in its third year

With more than 35,000 security services professionals worldwide, Deloitte advises, implements and operates a full range of services and solutions with capabilities across strategy and transformation, cloud, detect and respond, identity, infrastructure security, Data and privacy, application security and emerging technologies. Visit www.deloitte.com/cyber for more information.

Gartner Market Share Analysis: Security Services, Worldwide, 2023, By Matte Milone, Travis Lee, Luis Castillo, Charanpal Bhogal, Shailendra Upadhyay, 26 July 2024


Gartner, Market Share: Security Services, Worldwide, 2023, By Shailendra Upadhyay, Rahul Yadav, Akshita Joshi, Matte Milone, Travis Lee, 22 May 2024

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