January 1, 1997 (Heisei 9)
Founded Ryū Komuten in Ishigaki Nishi, Beppu
June 14, 2000 (Heisei 12)
Reorganized to Limited Company Ryū Komuten
January 30, 2002 (Heisei 14)
Submitted application for construction industry license
February 22, 2002 (Heisei 14)
Obtained Oita Prefectural Governor's License (No. 11798)
November 30, 2003 (Heisei 15)
Headquarters relocated to Fujimi-cho, Beppu
February 4, 2004 (Heisei 16)
Opened Oita Yard in Kanayazaka, Oita City
June 27, 2007 (Heisei 19)
Changed company name to Ryutech Corporation.
July 12, 2021 (Reiwa 3)
Opened Fukuoka Sales Office in Hakata-ku, Yoshizuka
May 22, 2024 (Reiwa 6)
Certified as a Youth Employment Support Company
October 23, 2024 (Reiwa 6)
Opened Okinawa Sales Office in Naha City
February 7, 2025 (Reiwa 7)
Renewed certification as Oita Childcare Support Group (Work-Childcare Support Company)
March 12, 2025 (Reiwa 7)
Certified as a Healthy Management Excellent Corporation 2025 (Small and Medium-sized Corporation Division)