On 11 February 2021, the Board of Directors of Île-de-France Mobilités, the public transport authority for the Paris Île-de-France region, awarded Keolis the operation and maintenance of two bus networks in the Yvelines department.
Pierre Gosset joins Keolis Group as Executive Director of the Industrial Division from 1 March 2021 and becomes a member of the group's Executive Committee in this capacity
On 31 January 2021, Keolis Downer, Keolis’ Australian subsidiary, began operating and maintaining Adelaide’s commuter rail network in the State of South Australia for a period of eight years
On 29 January 2021, Keolis was awarded a five-year contract by Loudoun County to operate and maintain a bus network in Loudoun County, Virginia, starting 1 April 2021.