in 2004. Sega Holdings Co., Ltd. was established in 2015; Sega Corporation was renamed to Sega Games Co., Ltd., and its arcade division was split into Sega Interactive. In 2020, Sega Games and Sega Interactive merged to become Sega Corporation.

Sega's international branches, Sega of America and Sega Europe, are headquartered in Irvine, California, and London. Its development studios include its internal research and development divisions (which