Tatsuo Tsutsumi

Questetra, Inc. develops business process management software. It specializes in the development of process improvement, system development, and communication tools. The firm’s solution enables organizations to develop business process management driven workflow systems through software-as-a-service edition and download edition. Its business activities also include website creation and operation; consulting services and computer software program development; and business investment. The company was founded by Genichi Imamura, Akihiro Hatanaka, Hajime Yahagi, Yoshinori Ehara, and Masato Furukubo on April 1, 2008 and is headquartered in Kyoto, Japan.

Part of A Zero, Inc., Nishiawakura Mori no Gakko KK is a company based in Aida, Japan. The Japanese company's main focus is on cafe management, strawberry picking, wood production, terminal sales, DIY space, and nature experience. Additionally, the company produces a two-layer copper knife with soft iron and copper, which is known for its stability and precision. The company also operates under the Azero group and Kenta Kawaguchi Insurance Co., Ltd. The company was founded in 2009 and was acquired by A Zero, Inc. on April 01, 2023.