Tomoyuki Yokoyama

Kizuna Corp. engages in the development and sale of security-related systems. It operates through the following business segments: Real Estate and Information Technology (IT) System Consulting. The Real Estate segment involves real estate planning, development, sales, and leasing operations. The IT System Consulting segment plans and develops software server applications, and provides security system consulting services. The company was founded on July 28,1988 and is headquartered in Tokyo, Japan.

Part of Office Support KK, JA Investments KK is an alternative investment manager. The private company is based in Tokyo, Japan.

Eco Techno Services Corp. provides renewal energy related electric works. The firm also provides renewal energy related after-sales maintenance, renewal energy related civil engineering, surveys, measurements, tests, and inspections. The company was founded on November 1, 2016 and is headquartered in Tokyo, Japan.

UNI ROOT KK engages in solar power generation, wind power generation, snow melting, fogging and real estate businesses. The company was founded on June 18, 2002 and is headquartered in Osaka, Japan.

JAG Seabell Co. Ltd. engages in renewable energy business. The firm offers consulting, designing and drawing, manufacture and sales in technology transfer. The company was founded in March 2004 and is headquartered in Tokyo, Japan.

Sakazume Housing KK engages in the housing development, renovations and construction business. It also provides cutting, woodworks and wood processing. The company was founded in October 1963 and is headquartered in Agano, Japan.

JAG Green Investment Ltd. provides investment services. The private company is based in Tokyo, Japan.

Founded in 2021, G Three Factory KK is a medical equipment and Japanese consumables sales company. Part of G Three Holdings Corp., the private company is based in Tokyo, Japan.