Maruyama Mfg Co., Inc. engages in the manufacture and sale of agricultural and forestry spraying machines, outdoor power equipment, environmental sanitation machines, firefighting equipment, and industrial high-pressure pumps. It operates through the following segments: Agriculture and Forest Machinery, Industrial Machinery, Other Machinery, and Real Estate Leasing and Others. The Agriculture and Forest Machinery segment includes sprayers, spreaders, brush cutters, chainsaws, hedges, and others. The Industrial Machinery segment manufactures and sells high-pressure pumps, high-pressure washers, and cleaning equipment. The Other Machinery segment produces fire extinguishers, disaster prevention-related equipment, and environmental sanitation machinery. The Real Estate Leasing and Others segment includes real estate leasing and electricity selling business. The company was founded in 1895 and is headquartered in Tokyo, Japan.