Techno Ryowa Ltd. engages in the design and installation of thermal and air conditioning equipment for factories and office buildings. It operates through the following divisions: Industrial Facility-related, General Building-related, Equipment Improvement, After Maintenance, Cold and Heating Equipment, and Others. The Industrial Facility-related division provides cleaning systems for manufacturing facilities. The General Building-related division handles the construction of urban and living spaces for people such as office buildings and medical facilities. The Equipment Improvement division offers function restoration of deteriorating equipment and renewal of air conditioning systems. The After Maintenance division provides after maintenance services for equipment systems of facilities. The Cold and Heating Equipment division handles sales of air conditioners through its subsidiaries. The Others segment includes operation of related facilities and manufacture and sales of related equipment for the divisions mentioned above. The company was founded by Hachiro Chikashige on December 23, 1949 and is headquartered in Tokyo, Japan.