Basic Information

Company nameORGANO CORPORATION
Address of head office1-2-8 Shinsuna, Koto-ku, Tokyo 136-8631
Map (PDF)
RepresentativePresident Masayuki Yamada
Fiscal year endMarch 31 (once a year)
FoundationMay 1, 1946
Capital8,225,499,312 yen
Number of employeesEmployees Consolidated: 2,660 Non-consolidated: 1,227 (As of March 31, 2026)
Business Description
Comprehensive Water Treatment Engineering Company
Manufacturing, sales, and maintenance of various water and wastewater treatment systems utilizing ion exchange resins, separation membranes, activated carbon, etc.; provision of water treatment outsourcing services; and sales of various water treatment chemicals and food processing materials.
Net salesConsolidated net sales: ¥163.2 billion
LocationsLocations (Offices and Affiliates)
OfficersOfficers

ISO Certifications

TypeDate of Registration, ApprovalDetails
ISO9001 (2015)
  • Plant Division
    January 15, 1996
  • Functional Products Department
    April 26, 1997
–
ISO9001 (2015)
  • Functional Products Department
    April 26, 1997
–
  • Tsukuba Factory
    March 9, 1996
  • [Scope of certification]
    CLEAN-UP (REFINING) AND REGENERATION OF ION EXCHANGE RESIN.
ISO14001 (2015)
  • Tsukuba Factory
    May 16, 1998
  • [Scope of certification]
    CLEAN-UP (REFINING), REGENERATION OF ION EXCHANGE RESIN, AND CLEANING OF REVERSE OSMOSIS AND ULTRA-FILTRATION MEMBRANES FOR WATER TREATMENT.
ISO/IEC17025 (2017)
  • R&D Center
    December 14, 2012
  • [Accreditation Category (Targets for Testing)]
    Chemical Products and Water (ultrapure water, raw water, and pharmaceutical production water)
  • [Testing Technology]
    ICP-MS TOC

Registration

TypeDate of Registration, ApprovalDetails
Construction License No.: (Toku-7) No. 3892 by Minister of Land, Infrastructure, Transport and TourismApril 17, 2025General Civil Engineering, General Building, Scaffolding, Earthwork and Concrete, Electrical, Plumbing, Tile, Brick and Block, Steel Structure, Machine and Equipment Installation, Telecommunications, Well Drilling, Water and Sewerage Facilities, Sanitation Facilities
1st-Class Authorized Architect’s Office Registration: Tokyo Governor Registration No. 60361September 15, 2025–
Registration for Construction Consulting Registration with the Minister of Transport, Ken-04 No. 10890February 28, 2022[Registered divisions] Waterworks and Industrial Water Facilities Division Sewage Treatment Division
Telecommunications Business Notification Registration No.:
A-30-16695		October 19, 2018–
Accredited Measurement Business Registration Number: Kanagawa Prefecture No. 173March 15, 2005–
Secondhand Dealer License–
  • ※
    Obtained at head office, Hokkaido Branch, Tohoku Branch, Chubu Branch, Kansai Branch, Chugoku Branch, Kyushu Branch