SIG Group Co., Ltd. provides system integration, IT infrastructure, and security solutions in Japan. It is involved in planning, drafting, development, and maintenance of information systems; proposal and sales of various packaged software and hardware equipment; design, construction, operation and maintenance of servers, network devices, and software products; and proposal and sales of various security countermeasure solutions. The company was formerly known as Sig Co., Ltd. and changed its name to SIG Group Co., Ltd. in October 2021. SIG Group Co., Ltd. was incorporated in 1991 and is headquartered in Chiyoda, Japan.