Dentsu Group, Inc. engages in the advertising and communication-related solution services. It operates through the following business segments: Domestic, Overseas, and Others. The Domestic segment offers marketing design, creative sphere, digital and social media content, communication design, promotions, data solutions, and social solutions. It also offers consulting services, software products, comprehensive network services, real estate management and sale, and non-life insurance agencies. The Overseas segment provides advertising and marketing services. The Others segment includes building leasing management, real estate sales and brokerage and non-life insurance agency. The company was founded by Hoshiro Mitsunaga on July 1, 1901 and is headquartered in Tokyo, Japan.