The Go-Ahead Group plc provides road and rail passenger transportation services in the United Kingdom and internationally. It operates through four segments: Regional Bus, London & International Bus, UK Rail, and International Rail. The company offers bus operation services; and rail replacement, sub-leasing of rolling stock, maintenance and cleaning, and other contracted services. It also engages in the rental of excess properties and subleasing of railway infrastructure access. The Go-Ahead Group plc was incorporated in 1987 and is headquartered in London, the United Kingdom.