U.S. Securities and Exchange Commission. "Report of Investigation by the Special Investigative Committee of the Board of Directors of Worldcom, Inc.," Pages 1-4, 274, and 279. The Big 4 accounting firms table ranks the top four firms in the UK by total UK fee income. Vaidyanathan adds that it seems likely the Big Four and other accountancy firms will continue to evolve the services th... https://jigsawmarketingltd.co.uk/