Govia Thameslink Railway

Govia Thameslink Railway (GTR) is a British train operating company that operates the TSGN rail franchise. Within the franchise, GTR runs trains under the sub-brands: Thameslink, Great Northern, Southern, and Gatwick Express. GTR is a subsidiary of Govia, which is itself a joint venture between the British Go-Ahead Group (65%) and French company Keolis (35%).