Govia is a joint venture between the Go-Ahead Group (65%) and Keolis (35%), two substantial and successful transport companies in their own right. Govia has extensive experience running complex and challenging rail operations, managing significant change programmes, and it has introduced more new train fleets in the UK than any other operator.

Govia currently runs three major rail franchises, Southern, Southeastern and London Midland, and has recently been awarded the new Thameslink, Southern and Great Northern (TSGN) franchise, which will be the UK's largest rail franchise. Govia is already the UK’s busiest rail operator, currently providing 28.7 per cent of all passenger journeys.

Established in 1987, The Go-Ahead Group has its roots in the North East where it was formed following de-regulation of the bus industry. Ten years later, with rail privatisation, the company entered into partnership with Keolis and began running the Thameslink franchise as Govia. It has run Southern since 2001, Southeastern since 2006 and London Midland since 2007. Go-Ahead has a turnover of £2.6 billion and some 23,500 employees.

Keolis is one of Europe's leading public transport operators, established in 15 countries on four continents employing 55,000 people worldwide. The group offers a full range of transport solutions around the world to meet the needs of local authorities and passengers. The company has a turnover of £4 billion.