Deloitte

Extracted Attributes

• Founder

  William Welch Deloitte

• Revenue

  US$67.2 billion (FY 2024)

• Industry

  Professional Services, Accounting, Consulting

• Headquarters

  London, England, United Kingdom (Note: Wikidata lists New York City for specific operations)

• Founding Date

  1845-01-01

• Employee Count

  470,000 employees globally (FY 2024)

• Legal Structure

  UK Private Company Limited by Guarantee (network of independent member firms)

• Geographic Reach

  Operating in over 150 countries

• US Private Organization Rank

  4th largest privately owned organization in the United States (2023)

Timeline

• William Welch Deloitte founds the accounting firm in London, England. (Source: Wikipedia)

  1845-01-01

• Deloitte expands operations into the United States. (Source: Wikipedia)

  1890-01-01

• Deloitte merges with Haskins & Sells to create Deloitte Haskins & Sells. (Source: Wikipedia)

  1952-01-01

• Deloitte Haskins & Sells merges with Touche Ross in the United States to establish Deloitte & Touche. (Source: Wikipedia)

  1989-01-01

• The international firm is officially renamed Deloitte Touche Tohmatsu. (Source: Wikipedia)

  1993-01-01

• Deloitte merges with Arthur Andersen practices in the UK, Europe, and the Americas. (Source: Wikipedia)

  2002-01-01

• Deloitte adopts the 'Always One Step Ahead' (AOSA) brand positioning framework. (Source: Web Search)

  2008-01-01

• Deloitte participates as an official sponsor of the 2012 Summer Olympics in London. (Source: Wikipedia)

  2012-07-27

• Deloitte acquires the strategy consulting firm Monitor Group. (Source: Wikipedia)

  2013-01-01

• Deloitte suffers a major cyberattack compromising employee data and confidential client information. (Source: Wikipedia)

  2017-01-01

• Deloitte is recognized as the fourth-largest privately owned company in the United States. (Source: Wikipedia)

  2023-01-01

• Deloitte achieves record aggregate global revenues of US$67.2 billion across its member network. (Source: Wikipedia)

  2024-01-01

Deloitte

Deloitte is a British multinational professional services network based in London, England. It is the largest professional services network in the world by revenue and number of employees, and is one of the Big Four accounting firms, along with EY, KPMG, and PwC. The Deloitte network is composed of member firms of Deloitte Touche Tohmatsu Limited ( də-LOYT TOOSH TOH-maht-soo), a private company limited by guarantee incorporated in England and Wales. The firm was founded by the accountant William Welch Deloitte in London, England in 1845 and expanded into the United States in 1890. It merged with Haskins & Sells to form Deloitte Haskins & Sells in 1952 and with Touche Ross in the US to form Deloitte & Touche in 1989. In 1993, the international firm was renamed Deloitte Touché Tohmatsu, later abbreviated to Deloitte. In 2002, Arthur Andersen's practice in the UK as well as several of that firm's practices in Europe and North and South America agreed to merge with Deloitte. Subsequent acquisitions have included Monitor Group, a large strategy consulting business, in 2013. Deloitte provides audit, consulting, financial advisory, risk, tax, and legal services with approximately 470,000 employees globally, and operates in over 150 countries. In FY 2024, the network earned revenues of US$67.2 billion in aggregate. The firm has sponsored a number of activities and events, including the 2012 Summer Olympics. The firm suffered a major cyberattack in 2017, causing a breach in client confidentiality and publicizing a significant amount of employee information. Deloitte has also been subject to litigation regarding several of its audits. In 2023, Deloitte was the fourth-largest privately owned organization in the United States, and has been continuously ranked on Fortune magazine's list of the 100 Best Companies to Work For.

Web Search Results

• Deloitte

  Deloitte is a multinational professional services network based in London, England. It is the largest professional services network in the world by revenue and number of employees, and is one of the Big Four accounting firms, along with EY, KPMG, and PwC. The Deloitte network is composed of member firms of Deloitte Touche Tohmatsu Limited (/dəˈlɔɪt ˈtuːʃ toʊˈmɑːtsuː/ də-LOYT TOOSH TOH-maht-soo), a private company limited by guarantee incorporated in England and Wales. [...] The firm was founded by the accountant William Welch Deloitte in London, England in 1845 and expanded into the United States in 1890. It merged with Haskins & Sells to form Deloitte Haskins & Sells in 1952 and with Touche Ross in the US to form Deloitte & Touche in 1989. In 1993, the international firm was renamed Deloitte Touché Tohmatsu, later abbreviated to Deloitte. In 2002, Arthur Andersen's practice in the UK as well as several of that firm's practices in Europe and North and South America agreed to merge with Deloitte. Subsequent acquisitions have included Monitor Group, a large strategy consulting business, in 2013. [...] According to the company website, Deloitte now refers to the brand under which independent firms throughout the world collaborate to provide audit, consulting, financial advisory, risk management, and tax services to selected clients. In 2008, Deloitte adopted its new "Always One Step Ahead" (AOSA) brand positioning platform to support the existing Deloitte vision: "To be the Standard of Excellence". AOSA represents the global organization's value proposition and is never used as a tagline. The recent launch of the Green Dot ad campaign also aligns with Deloitte's brand strategy and positioning framework.

• Deloitte | LinkedIn

  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. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited (“DTTL”), its global network of member firms, and their related entities. DTTL (also referred to as “Deloitte Global”) and each of its member firms are legally separate and independent entities. DTTL does not provide services to clients. Please see www.deloitte.com/about to learn more. The content on this page contains general information only, and none of [...] on this page contains general information only, and none of Deloitte Touche Tohmatsu Limited, its member firms, or their related entities (collectively the “Deloitte Network”) is, by means of this publication, rendering professional advice or services. Before making any decision or taking any action that may affect your finances or your business, you should consult a qualified professional adviser. No entity in the Deloitte Network shall be responsible for any loss whatsoever sustained by any person who relies on content from this page. [...] ## Posts ## Media - Images: - Logo: Company Logo ## Additional Additional jobs info: Deloitte (23,745 open jobs). Analyst (694,057 open jobs). Engineer (555,845 open jobs). Intern (71,196 open jobs). Manager (1,880,925 open jobs). Associate (1,091,945 open jobs). Developer (258,935 open jobs). Project Manager (253,048 open jobs). Accountant (91,739 open jobs). Consultant (760,907 open jobs). Specialist (768,666 open jobs). Human Resources Specialist (34,340 open jobs). Assistant (711,811 open jobs). Executive (690,514 open jobs). Scientist (48,969 open jobs). Graduate (361,130 open jobs). Software Engineer (300,699 open jobs). Data Analyst (329,009 open jobs). Recruiter (243,016 open jobs). Director (1,220,357 open jobs)

• Our services | Deloitte US

  © 2026. See Terms of Use for more information. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee ("DTTL"), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as "Deloitte Global") does not provide services to clients. In the United States, Deloitte refers to one or more of the US member firms of DTTL, their related entities that operate using the "Deloitte" name in the United States and their respective affiliates. Certain services may not be available to attest clients under the rules and regulations of public accounting. Please see www.deloitte.com/about to learn more about our global network of member firms. [...] © 2026. See Terms of Use for more information. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee ("DTTL"), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as "Deloitte Global") does not provide services to clients. In the United States, Deloitte refers to one or more of the US member firms of DTTL, their related entities that operate using the "Deloitte" name in the United States and their respective affiliates. Certain services may not be available to attest clients under the rules and regulations of public accounting. Please see www.deloitte.com/about to learn more about our global network of member firms. [...] ### Customer ### Cyber Deloitte uniquely understands your business and cybersecurity challenges and opportunities. Our powerful solutions simplify complexity, accelerate innovation, and supercharge transformation. This enables you to operate with resilience, grow with confidence and secure success for your organization. ### Deloitte Private ### Direct Tax ### Enterprise Performance ### Finance Transformation ### Global Employer Services ### Human Capital ### Indirect Tax ### Legal Business Services ### Operate US ### Regulatory, Risk & Forensic ### Strategy & Transactions ### Tax Transformation Consulting ### 2026 Global Tax Policy Survey #### The rising tide of tax complexity

• Consulting Services for Industries | Deloitte US

  © 2026. See Terms of Use for more information. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee ("DTTL"), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as "Deloitte Global") does not provide services to clients. In the United States, Deloitte refers to one or more of the US member firms of DTTL, their related entities that operate using the "Deloitte" name in the United States and their respective affiliates. Certain services may not be available to attest clients under the rules and regulations of public accounting. Please see www.deloitte.com/about to learn more about our global network of member firms. [...] © 2026. See Terms of Use for more information. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited, a UK private company limited by guarantee ("DTTL"), its network of member firms, and their related entities. DTTL and each of its member firms are legally separate and independent entities. DTTL (also referred to as "Deloitte Global") does not provide services to clients. In the United States, Deloitte refers to one or more of the US member firms of DTTL, their related entities that operate using the "Deloitte" name in the United States and their respective affiliates. Certain services may not be available to attest clients under the rules and regulations of public accounting. Please see www.deloitte.com/about to learn more about our global network of member firms. [...] Deloitte logo return to homepage Deloitte logo return to homepage ### Blockchain & Digital Assets Service ### Blockchain & Digital Assets Service ### Blockchain & Digital Assets Service ### Blockchain & Digital Assets Service Select your location No results found If we have selected the wrong experience for you, please change it above. # Consulting services for industries ## Providing practical perspectives and solutions At Deloitte, we partner with you to tackle today’s challenges and uncover tomorrow’s opportunities. Our consultants combine deep industry experience with innovative thinking, technology, and alliances to translate insights into actionable strategies. We blend strategy, analysis, operations, and technology to help shape your industry’s future.

• Our services | Deloitte Global

  © 2026. For information, contact Deloitte Global. Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited (“DTTL”), its global network of member firms, and their related entities (collectively, the “Deloitte organization”). DTTL (also referred to as “Deloitte Global”) and each of its member firms and related entities are legally separate and independent entities, which cannot obligate or bind each other in respect of third parties. DTTL and each DTTL member firm and related entity is liable only for its own acts and omissions, and not those of each other. DTTL does not provide services to clients. Please see www.deloitte.com/about to learn more. © 2026. For information, contact Deloitte Global. [...] #### About Deloitte #### Careers ##### Follow us Deloitte refers to one or more of Deloitte Touche Tohmatsu Limited (“DTTL”), its global network of member firms, and their related entities (collectively, the “Deloitte organization”). DTTL (also referred to as “Deloitte Global”) and each of its member firms and related entities are legally separate and independent entities, which cannot obligate or bind each other in respect of third parties. DTTL and each DTTL member firm and related entity is liable only for its own acts and omissions, and not those of each other. DTTL does not provide services to clients. Please see www.deloitte.com/about to learn more. © 2026. For information, contact Deloitte Global. [...] ### Assurance ### Audit ### Business Process Solutions Customized solutions in operational finance, HR & payroll, and tax compliance operations. We leverage our experienced professionals, innovative technologies and global methodologies to resource our clients' needs. ### Customer ### Cyber Deloitte uniquely understands your business and cybersecurity challenges and opportunities. Our powerful solutions simplify complexity, accelerate innovation, and supercharge transformation. This enables you to operate with resilience, grow with confidence and secure success for your organization. ### Deloitte Private ### Engineering, AI & Data ### Enterprise Technology & Performance ### Finance Transformation ### Global Employer Services ### Human Capital ### Legal

• Founder

  William Welch Deloitte

• Employees

  334,800

• Instance Of

  Q7248095

• Headquarters

  New York City

• Inception Date

  1/1/1845