RKB Mainichi Holdings Corporation engages in the radio and television broadcasting business in Japan. It operates through the Broadcasting Business, System-Related Business, Real Estate Business, and Other Business segments. The company is involved in the planning, production, and performance of various events, such as music and sports; and sale of television and radio programs. It also develops, maintains, and sells system software; and offers cloud security services. In addition, the company engages in the real estate rental and parking lot management; and other businesses. RKB Mainichi Holdings Corporation was founded in 1951 and is headquartered in Fukuoka City, Japan.