Multinational professional services network founded in 1845
Deloitte Touche Tohmatsu Limited ( də-LOYT TOOSH toh-MAHT-soo), commonly referred to as Deloitte, is a multinational professional services network based in London, England. Deloitte is the largest professional services network by revenue and number of employees in the world and is one of the Big Four accounting firms, along with EY, KPMG, and PwC. The firm was founded by William Welch Deloitte in London, England in 1845 and expanded into the United States in 1890.
https://en.wikipedia.org/wiki/Deloitte