OpenDoor Inc. provides Web services through the Internet in Japan. The company operates Travelko, a travel comparison site; TRAVELKO, a multi-language travel comparison site; and GALLERY JAPAN, a Japanese traditional art crafts site. It is also involved in the development and provision of online systems for the internet and mobile phones; and planning and operation of software development and content delivery. The company was incorporated in 1997 and is headquartered in Tokyo, Japan.