T&D Holdings (T&D Holdings; Japanese: T&D ホールディングス) a well-known Japanese holding company, is a subsidiary of Taiyo Life, Daido Life and T& T&D Holdings is the holding company of three life insurance companies, including Taiyo Life, Daido Life and T&D Financial Life, established in 2004 and headquartered in Tokyo. t&D Holdings was ranked 473rd in the Global Business 2000 in 2014.