Original Engineering Consultants Co., Ltd. operates as an engineering consultancy firm in Japan. The company operates through Construction Consulting and Information Processing Services segments. It offers consulting services for public works projects, such as surveys, planning, detailed design, and construction supervision for water supply and sewerage systems. The company also provides wastewater collection systems, wastewater and sludge treatment, waste management, septic tank planning, urban runoff control planning, and water related BOP business coordinating services. In addition, it offers software development and IT engineering services. The company 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 Shibuya, Japan.