Keiichi Tedzuka

D. A. Consortium, Inc. engages in online media transaction related business. It purchases and sells advertising space; and provides diversified advertising service and content marketing. The company was founded on December 2, 1996 and is headquartered in Tokyo, Japan.

Torchlight, Inc. provides social media advertising services. It operates through its advertising platform, Sherpa, which promotes brands in the Japanese market. The firm also offers Gigya, a customer identity management platform. The company is headquartered in Tokyo, Japan.

Iponweb Japan KK provides infrastructure level solutions for the programmatic advertising ecosystem. Iponweb Japan KK is based in Tokyo, Japan. The Japanese company specializes in programmatic and real-time advertising technology and infrastructure, utilizing AI, data, and engineering.