Original Engineering Consultants Co., Ltd. provides engineering consultancy services in Japan. The company offers various consulting services, such as prefeasibility study, investigation, planning, detailed design, diagnosis, construction supervision, and relevant services in the fields of water supply, sewerage works, sanitation and solid waste treatment, industrial wastewater, night soil treatment, refusal disposal, stream pollution, and rain overflood control. It also provides wastewater collection systems, wastewater and sludge treatment, waste management, septic tank planning, urban runoff control planning, and water related BOP business coordinating; and feasibility studies, master planning, sewer network planning, integrated urban water management, strategic planning, network modeling, gravity and vacuum sewerage schemes, pump stations, special structures, EPCM services, overflow reduction, project management, and construction supervision services. In addition, the company engages in wastewater and sludge treatment, and waste management services. It also undertakes various projects in Asia, the Pacific Islands, the Middle East, and South America. Original Engineering Consultants Co., Ltd. was incorporated in 1962 and is headquartered in Tokyo, Japan.