Deloitte is a global professional services organization operating through a network of independent member firms under the Deloitte brand. It provides audit, assurance, consulting, tax, cyber, and related advisory capabilities to organizations in more than 150 countries and territories. Deloitte Touche Tohmatsu Limited serves as the coordinating entity for the network, while member firms remain legally separate and independently regulated.
The organization combines broad functional depth with industry specialization and technology-led transformation capabilities. Deloitte works with many of the world’s largest enterprises as well as private businesses, investors, and public sector organizations. Its portfolio spans traditional professional services, managed services, alliance-enabled cloud transformation, and selected proprietary platforms and solutions designed to help clients modernize operations, manage risk, and pursue growth.
Offerings, Capabilities, and Integrations
Deloitte’s capabilities span trust, transformation, and operational execution. Its portfolio covers financial statement audit, broader assurance on financial and non-financial information, tax compliance and advisory, cyber strategy and managed defense, workforce and HR transformation, enterprise technology modernization, engineering, AI and data services, and transaction-related advisory. It also delivers ongoing Operate services that extend beyond project work into managed operations across areas such as cyber, tax, applications, business processes, and data.
Deloitte complements its service lines with a large alliance ecosystem and cloud integration model. Its teams work across major enterprise and cloud platforms including AWS, Google Cloud, Microsoft, Oracle, SAP, Salesforce, ServiceNow, and Workday. That ecosystem supports cloud migration, ERP modernization, AI adoption, data platform transformation, security operations, and industry-specific solution delivery.
Products and Services
- Assurance: Assurance and related advisory services focused on accounting and reporting, controls, and sustainability and emerging assurance, including AI-related assurance.
- Audit: Independent external audit services for financial statements and internal controls, supported by technology-enabled audit methods and global delivery capabilities.
- Cyber: Cybersecurity services spanning cyber strategy, digital trust and privacy, cloud and identity security, threat detection and response, and cyber operations modernization.
- Deloitte Private: Tailored services for private businesses, family enterprises, family offices, private equity firms, and portfolio companies.
- Engineering, AI & Data: Engineering-led services that combine product engineering, AI, data, cloud, and industry solutions to modernize mission-critical systems and accelerate new digital capabilities.
- Enterprise Technology & Performance: Business-led technology strategy and transformation services focused on ERP modernization, finance and supply chain performance, AI-enabled operations, and sustained operational improvement.
- Human Capital: Human capital services covering HR strategy and technology, organization and work transformation, workforce transformation, and Human Capital as a Service offerings.
- Operate: Managed services portfolio that helps clients run core business and technology functions across areas such as cyber, tax, applications, data, and business process operations.
- Strategy & Transactions: Advisory services spanning strategy, M&A, valuation, restructuring, performance improvement, infrastructure and real estate, and transformation execution.
- Tax: Global tax compliance, advisory, and implementation services across direct tax, indirect tax, international tax, M&A tax, and tax technology consulting.
- Managed Extended Detection and Response (MXDR) by Deloitte: A fully managed, modular cybersecurity offering that provides 24/7/365 prevention, detection, response, threat hunting, and remediation across endpoints, identity, OT, and cloud environments.
- Deloitte Ascend™: An AI-infused delivery platform that helps orchestrate and execute work with greater efficiency, transparency, and consistency across transformation and delivery engagements.
- Digital Reality Enterprise Asset Management™ (DREAM): A cloud-based solution built with AWS that centralizes visual and spatial data to support spatial intelligence, digital twin, augmented reality, and industrial metaverse use cases.
- AI Advantage for CFOs: An AI-powered analytics and insights platform for finance teams that uses intelligent agents and automation to improve planning, analysis, and decision support.
- TrueServe for Government: A public sector solution with pre-built capabilities for contact center transformation, case and workflow automation, constituent engagement, self-service portals, and real-time operational insight.
Target Customers
Deloitte primarily serves large and complex organizations that need multidisciplinary support across finance, risk, technology, workforce, and transactions. Its client base includes many of the world’s largest enterprises, including a significant share of the Fortune Global 500, as well as organizations pursuing large-scale transformation, regulatory change, cyber resilience, and cloud modernization.
Deloitte also targets the private company ecosystem through Deloitte Private, serving family enterprises, family offices, emerging growth companies, private equity firms, and portfolio companies. Beyond commercial clients, it works with government and public services organizations and maintains industry coverage across consumer, energy and industrials, financial services, life sciences and health care, and technology, media, and telecommunications.
Cloud Integrations and Marketplace
- AWS Marketplace: Deloitte has a verified AWS Marketplace presence with listed offerings including cloud managed services, managed cybersecurity services, public sector solutions such as TrueServe for Government, and other AWS-aligned solution and advisory offerings.
- Google Cloud Marketplace: Deloitte has a verified Google Cloud Marketplace presence, including the availability of Managed Extended Detection and Response (MXDR) by Deloitte, alongside broader Google Cloud transformation and managed services capabilities.
- Microsoft Azure: Deloitte provides Azure-related integration and managed services through its Microsoft Technology Services practice, including Azure cloud managed services, analytics and AI, hybrid cloud, application modernization, and Microsoft business application transformation.
Key People
- Joseph B. Ucuzoglu: Global Chief Executive Officer
- Anna Marks: Chair of the Deloitte Global Board of Directors
- Stacy Janiak: Deputy Chief Executive Officer
- Donna Ward: Deloitte Global Chief Operating Officer
- Elizabeth Faber: Deloitte Global Chief People & Purpose Officer
- Lara Abrash: Chair, Deloitte US
- Jason Girzadas: Chief Executive Officer, Deloitte US
- David Hill: Chief Executive Officer, Deloitte Asia Pacific
Key Facts
- Headquarters: London, England, United Kingdom
- Employees: Over 470,000
- Annual Revenue: US$70.5B
- Parent Company: Deloitte Touche Tohmatsu Limited (DTTL)
- Subsidiaries: None
- Publicly Listed: No — private organization/network; Deloitte Touche Tohmatsu Limited (DTTL) is a UK private company limited by guarantee.
Analyst Recognitions
- Gartner: 2026 Gartner Magic Quadrant for Digital Technology and Business Consulting Services — Leader, positioned furthest on Completeness of Vision..
- Forrester: 2022 The Forrester Wave: Cybersecurity Incident Response Services, Q1 2022 — Leader, positioned furthest in strategy..
- IDC: 2025 IDC MarketScape: Worldwide Artificial Intelligence Services Vendor Assessment — Leader..
- Everest Group: 2026 Everest Group Private Equity (PE) Services PEAK Matrix Assessment — Leader and Star Performer..
