• Barry Salzberg, CEO
  • Stephen Almond, Chairman

Deloitte Touche Tohmatsu Limited ( DTTL ), known under the brand name Deloitte [ dilɔ ͜ ɪt ], is next to PricewaterhouseCoopers (PwC ), Ernst & Young, KPMG and one of the Big Four firms in the accounting and consulting industry. Worldwide measured by revenue and is Deloitte the largest professional service firm with a network of member firms in more than 150 countries. The company is active in the fields of auditing, tax, consulting and corporate finance. In the 2013 financial year, Deloitte has achieved a turnover of 32.4 billion U.S. dollars, with 203,000 employees. The headquarters of the global organization located in New York City in the United States. Deloitte Germany is headquartered in Dusseldorf.

Foundation and History

The first office was founded in 1845 in London by William Welch Deloitte. As early as 1890 was the expansion in the United States. George Touche founded his company in 1899 in London. In 1975, the Tohmatsu founded in Tokyo in 1968 Awoki & Co. (Japanese等 松·青木 监 查 法人, Tomatsu Aoki Kansa Hojin ) was integrated into the company founded by George Touche. 1990, founded respectively by Deloitte and Touche companies merged to form Deloitte & Touche, 1993, the name of the international network of Deloitte Touche Tohmatsu Limited was established. The name Deloitte is the longest continuously used company name of the auditing profession worldwide.

As only one of the Big Four Deloitte separated after the Enron scandal not of its affiliated consulting firm.


DTTL is a limited liability company under UK law ( private company limited by guarantee ). She herself does not provide consulting services to clients, but only the global member firms of DTTL. The Deloitte national companies, such as Deloitte Germany, are part of the global network of separate and independent companies. Each member firm provides its own services in a particular geographic area and is subject to local legal laws and professional regulations.


Deloitte competes with the world's other major tax advisors and auditors, KPMG, PricewaterhouseCoopers and Ernst & Young.

In the field of business consulting in some areas, the major strategy consulting firms McKinsey, Boston Consulting Group and Bain & Company are among the competitors in other areas more technically - oriented discussions such as Accenture or Bearing Point.

On the basis of the worldwide turnover Deloitte PricewaterhouseCoopers before the largest of the Big Four audit firms in Germany, however, significantly lower than the other three of the Big Four.

Some large customers

  • Apple
  • Boeing
  • Gap
  • Microsoft
  • Pepsi
  • Procter & Gamble
  • Royal Bank of Scotland
  • Starbucks
  • Vodafone