Besterra Co., Ltd. is a Japanese company engaged in plant demolition and related services. Its operations include dismantling plant facilities, 3D laser scanning measurement, design and consulting, and worker dispatch and employment placement. The company also develops and sells demolition robots, including the "Ringo Star" cutting robot for dismantling large spherical storage tanks, and jointly develops inspection robots for crane rails. It offers decarbonization solutions such as the apple peeling method and windmill toppling method, and conducts research and development of new construction methods and software for drawing reading and estimation, along with software training and business consulting. Besterra serves industrial clients, plant operators, and construction companies in Japan. Founded in 1974, it is headquartered in Tokyo, Japan.