TOKAI Holdings Corporation is engaged in the energy, residential real estate other businesses. Gas and Petroleum segment engages in sale of liquefied petroleum gas, liquefied natural gas, high-pressure gas and oil products; supply of city gas; sales of related products; construction of related facilities and equipment; as well as security business. Building and Real Estate segment constructs houses and engages in development and sale of real estate, sales of construction materials and equipment and others. CATV segment engages in broadcasting, Internet connection by CATV network business. Information and Telecommunications segment engages in computer software development, information processing, Internet connection, communication equipment sales and agency business. Aqua segment engages in manufacture and sale of drinking water. Others business engages in wedding, ship repairing, insurance and nursing care business.