Otomo Logistics Service Co., Ltd. engages in transportation and product management business using trucks specializing in parts distribution for parts manufacturers and assembly manufacturers. It operates through the Transportation and Product Management business segments. The Transportation segment uses large trucks and OLS shared milk run that tour areas where industrial parts manufacturers, construction machinery, and industrial machinery are concentrated every day, and provides transportation services nationwide. The Product Management segment handles intermediate process between parts manufacturers and assembly manufacturers, and perform general warehousing operations related to parts distribution. The company was founded by Isamu Tomono on July 29, 1963 and is headquartered in Tokyo, Japan.