Our association was established in 1972 with the permission of the Prime Minister's Office (currently the Ministry of Internal Affairs and Communications) for the purpose of contributing to the healthy development and growth of public interest corporations, and thereby contributing to the promotion of public welfare. Our goal is to "contribute to improving and developing the role of the non-profit sector in society by promoting and supporting autonomous and creative public interest activities by organizations that undertake public interest activities."

Aqua Dive Kohoro is a diving shop in Amami Oshima that provides full support for diving in Amami Oshima with small group classes.

Advertising agency KOHO Media Co., Ltd. (formerly Windcross Co., Ltd.) helps clients with their public relations efforts with a wide range of proposals, including DTP, websites, and information papers.

KOHORO is a store selling tableware and household items. At our stores in Futako Tamagawa, Tokyo and Yodoyabashi, Osaka, we mainly introduce tableware by contemporary artists. We stock a wide range of Japanese pottery, glassware, woodwork, lacquerware, and traditional crafts.

Kohosha Co., Ltd. is a general advertising agency located in Naka-ku, Nagoya, specializing in magazines. They handle about 150 magazines, including "Otona no Nagoya," "Rurubu," "Mapple," and "Jiyuujin." They also handle and produce newspaper and web advertisements, and commercials.

KO Housing specializes in brick houses, building brick houses that are earthquake-resistant, durable, and fire-resistant. If you are looking for a brick house in Aomori or Hirosaki, please contact KO Housing.

Koraen is a yakiniku and shabu-shabu restaurant that does not use any frozen meat.

This is a community site for Koryo High School graduates.

Ko-Sai is a leading company in the manufacture of jewelry and jewelry parts. By combining artisanal techniques with cutting-edge machining, we create products that consider our users, business partners, employees, future generations, and the global environment. As a JASDAQ-listed company based in Yamanashi Prefecture, we will contribute to the peace and development of Japan and the world.

Kosei Central Hospital in Meguro Ward has long played the role of a regional core hospital rooted in the area centered around Ebisu Station. We provide comprehensive treatment, including logistical support for home care, perinatal care, cancer treatment, and rehabilitation, and we will continue to provide detailed medical care that will satisfy and satisfy our customers.