22nd June 2013: Tower Transit formed, following the acquisition of Atlas Road, Lea Interchange and Westbourne Park garages from First. It was formed by the company Transit Systems, which was later purchased by Sealink Travel Group.
September 2021: Sealink and RATP announced that Westbourne Park and RATP Group’s current operations would merge to form RATP Dev London Transit. RATP holds 87.5% of the shares, and Sealink holds 12.5%.
11th December 2021: Westbourne Park transferred over to RATP Dev London Transit.