Two of the world's largest travel management companies have become one. American Express Global Business Travel last Thursday completed its 410 million British pound takeover of Hogg Robinson Group to create a TMC that handles a combined $36 billion in annual transaction value. The mega of all megas now has mega integration work ahead. Integration of the two organizations, their people and their technology has begun in earnest. "The real work starts now," Amex GBT CEO Doug Anderson said in an interview. "We've done a lot of planning, but planning is a desktop exercise." Get the full story at Travel Weekly