Hiyoshi India Ecological Services Private Limited Hiyoshi India Ecological Services Private Limited was established in 2011 and it is a subsidiary company of Hiyoshi Corporation, Japan a company founded in 1955 with the sole purpose of serving to the global environment. Hiyoshi India laboratory has been accredited in accordance with ISO/IEC 17025:2017 in the disciplines of Chemical Testing by NABL (National Accreditation Board for Testing and Calibration Laboratories) We are into environmental services provider such as water and wastewater analysis at our NABL accredited laboratory. Water and wastewater treatment projects, revamping of the existing treatment plant, consulting, monthly operation and maintenance of diverse range of STP, WTP, RO, NANO, UF, DM and ETP of various industries, residential apartments, star hotels, academic institutions, IT parks, shopping mall, hospitals, and many others.