Deloitte
To make an impact that matters for clients, people, and society.
At a Glance
- Global 500 corporations
- Government agencies
- Private enterprises
- Non-profit organizations
AI Tools by Deloitte
(1)
Deloitte Cyber Attack Surface Management (ASM)
Managed Cyber Attack Surface Service
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Latest News
Deloitte reports FY2025 revenue of $70.5 billion
Release of 2026 Gen Z and Millennial Survey
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Deloitte to modernize job titles amid AI shift
Products & Services
Independent audit of financial statements and other assurance services.
Strategy, operations, technology, and human capital consulting services.
Compliance, advisory, and global legal services.
M&A, forensic, restructuring, and valuation services.
Market Position
Largest professional services network in the world by revenue and headcount, competing primarily with PwC, EY, and KPMG (The Big Four).
Leadership
Founders
William Welch Deloitte
Founded the firm in 1845 in London. He was the first person to be appointed as an independent auditor of a public company (Great Western Railway).
George Touche
Established his own firm in London in 1898. A pioneer of the modern accounting profession, he expanded the firm into North America.
Admiral Nobuzo Tohmatsu
An admiral and accountant who formed Tohmatsu, Awoki & Co. in 1968 in Japan. His firm merged into the global network in 1989.
Executive Team
Joe Ucuzoglu
Deloitte Global CEO
Joined Deloitte in 1997. Previously served as CEO of Deloitte US (2019-2022). Also served as Senior Advisor to the Chief Accountant at the U.S. Securities and Exchange Commission (SEC).
Anna Marks
Deloitte Global Chair
Has spent over 20 years as an audit partner. Held leadership roles in Deloitte North & South Europe and Deloitte UK before becoming Global Chair.
Board of Directors
Founding Story
William Welch Deloitte started the firm in 1845 in London, envisioning a profession built on integrity and independence. He became the first person to serve as an independent auditor for a public company, setting the foundation for the modern accounting and auditing profession.
Business Model
Revenue Model
Fee-for-service professional services (Audit, Consulting, Advisory). Some proprietary platforms and tools (e.g., Deloitte Catalyst) use subscription-based models.
Pricing Tiers
Most services are priced based on project scope, complexity, and professional hours.
Access to proprietary data sets, insights, and software tools.
Target Markets
- Global 500 corporations
- Government agencies
- Private enterprises
- Non-profit organizations
- Corporate financial auditing
- Digital transformation strategy
- Regulatory compliance
- Mergers and acquisitions
- Cybersecurity risk management
- Various Fortune 500 companies
- Global financial institutions
- Public sector entities