Deloitte Reviews, Ratings & Features 2026 | Gartner Peer Insights

Security consulting firms are advisory and consulting services (see 'Definition: Cybersecurity' ) related to information and IT security design, evaluation and recommendations. These services are procured by various stakeholders in an organization, including boards of directors, CEOs, chief risk officers (CROs), chief information security officers (CISOs), chief information officers (CIOs), and other business and IT leaders for the purpose of obtaining and ensuring acceptable risk levels for a specific client organization.

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Security Consulting Services, Worldwide

Deloitte Security Consulting Services

Deloitte

CISO

We have been working with young consultants that do not have the depth of experience to bring a lot of value.

3B - 10B USD

10B - 30B USD

50M - 250M USD

30B + USD

HEAD OF PRODUCT CYBER RESILIENCE

A long standing relationship was the main reason I kept on working with Deloitte Security Consulting Services, because they really and deeply knew the organization already.

KPMG

DXC Technology

Capgemini

Protiviti

Infosys

Deloitte is a multinational entity that incorporates several independent firms on a global scale, each one serving their clients' growth and success areas. The main aim is to provide sound and professional guidance resulting in their clients emerging as the frontrunners of their respective domains. The parent entity, Deloitte Touche Tohmatsu Limited, is the overseer of this vast network of member firms spread worldwide, though each firm retains its legal autonomy. The diversity of the talent housed in Deloitte is channelized to deliver optimal solutions tailored to their clients' specific needs. The onus is put on businesses and individuals to seek professional advice before making decisions affecting their financials. Deloitte's offerings are general and do not serve as professional advice targeted for unique cases. Their ultimate goal is to utilize the wealth of knowledge at disposal for the betterment of their clients and the collective society, resulting in a robust organization.

Deloitte drives progress. Our firms around the world help clients become leaders wherever they choose to compete. Deloitte invests in outstanding people of diverse talents and backgrounds and empowers them to achieve more than they could elsewhere. Our work combines advice with action and integrity. We believe that when our clients and society are stronger, so are we. 

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Favorable Review

A partner, more than a consulting service provider

Critical Review

Other consultancy firms may have more extensive expertise

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