Kelsian Group Limited provides land and marine transport and tourism services in Australia, the United States, Singapore, and the United Kingdom. It operates through Marine & Tourism, Australian Bus, and International Bus segments. The Marine & Tourism segment operates vehicle and passenger ferry services, barging, coach tours and package holidays, lunch, dinner, charter cruises, and accommodation facilities. The Australian Bus segment operates metropolitan public bus services on behalf of governments in Sydney, Melbourne, Perth, Adelaide, and Darwin; regional and remote bus services; and charter bus services in the Northern Territory. The International Bus segment operates metropolitan public bus services on behalf of governments in London, Singapore, and the channels islands; and charter coaches for corporates, local and federal government and education sectors in the United States. In addition, the company provides finance, sales and marketing, information and technology, business development, fleet management, health and safety, and administration and risk management support services. It operates 4,800 buses, 113 vessels, and 24 light rail vehicles, as well as 73 electric buses. The company was formerly known as SeaLink Travel Group Limited and changed its name to Kelsian Group Limited in November 2021. Kelsian Group Limited was founded in 1989 and is headquartered in Adelaide, Australia.