Welcome to Go-Ahead London. What is Go-Ahead London? Go-Ahead London is the trading name used collectively for the London bus operations of the Go-Ahead Group. The name first appeared in August 2008, before which the company had traded under separate names and brands. It is the largest bus operator in London, operating a total of 115 bus routes under contract to Transport for London We are not affiliated with the real Go-Ahead London group.