SERAKU Co., Ltd. engages in the provision of Internet solutions and services. It operates through the following segments: Information Technology (IT) Infrastructure, Web Marketing Communication, Smart Solutions, and Others. The IT Infrastructure segment offers IT infrastructure solutions and on-site services, and human resource cultivation and study support services. The Web Marketing segment provides services in web marketing communications business. The Smart Solutions segment develops smart phone applications; and offers web systems and mobile site formulation. The Others segment includes communication and hardware businesses. It also engages in the rental laboratory business. The company was founded by Tatsumi Miyazaki on December 21, 1987 and is headquartered in Tokyo, Japan.