Three people are the protagonists in our history and who have named our firm. Everything began in Scotland. In 1845, William Welch Deloitte opened the first office of the company, naming it after himself, as was the custom at the time. That same year, the company is incorporated into the Royal Charter of the Society of Accountants of Edinburgh. Forty-eight years later, in 1893, W.W. Deloitte travels to America and merges with the firm Haskins & Sells.
Meanwhile, in 1883, fellow Scotsman George Touche sets up shop in London, and later decides to open offices in the United States where he merges with J.B. Niven & Co. It is there that he learns of the Deloitte firm, with whom he ends up opening a firm in Java.
In 1990, the third in joining W.W. Deloitte and G. Touche is Nobuzo Tohmatsu, who in 1968 founded Tohmatsu & Co. After the merger of Deloitte Haskins & Sells with Touche Ross and Tohmatsu & Co. the western and eastern cultures merge.