Design, manufacture, and sale of various equipmentDesign and construction of facilities for water treatment plants, sewage treatment plants, and waste treatment facilitiesRepair workOperation management servicesIndustrial water treatment
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Network
NETWORK
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History
49 EVENTS
Japan Gais and Fuji Electric reach basic agreement on water environment business integration
Japan Gais transfers environmental-related business to its subsidiary, NGK Water Environment Systems Co., Ltd.
Fuji Electric transfers water environment business to its subsidiary, Fuji Electric Water Environment Systems Co., Ltd.
Metawater Inc. is established through the merger of NGK Water Environment Systems and Fuji Electric Water Environment Systems
Established on April 1, 2008
Acquisition of the environmental business of Kurimoto Technos Co., Ltd.
Launch of a new business, Water Business Cloud (WBC), to support water supply and sewerage projects
Operation of the Oomuta-Ariake joint water purification plant (Ariake Purification Plant) as part of the DBO project for updating water treatment facilities between two neighboring municipalities
First delivery of vehicle-mounted ceramic membrane water purification equipment to Africa (Malawi, Kenya, Togo)
Established METAWATER USA, INC. in the United States as the company's first overseas local subsidiary
Business alliance with Suido Kiko Co., Ltd.
Relocated headquarters from Toranomon, Minato-ku, Tokyo to Kanda Sudacho, Chiyoda-ku, Tokyo
Opened a Phnom Penh office in Cambodia
Subscribed to the capital increase of Io Corporation, a subsidiary of Nippon Suiko Co., Ltd.
Business alliance with Kokusai Kogyo Co., Ltd.
Business alliance with PWN Technologies of the Netherlands
Participated in a third-party allotment of shares of Rood Wit Blauw Holding B.V. in the Netherlands, and formed a capital and business alliance
Collaborated with Fujitsu Ltd. to start providing the water and sewer infrastructure management service "Smart FieldService"
Established Hybrid Chemical Co., Ltd., a pharmaceutical business jointly funded with a subsidiary of Tsukishima Kikai Co., Ltd.
Launched the "Onagawa Town Fish Processing Complex Drainage Treatment Facility Development Project" as Japan's first independent profit-and-loss type PFI project in plant operation (Onagawa Town, Miyagi Prefecture)
Started the "Takizawa Water Purification Plant Renewal and Development Project" as a comprehensive waterworks facility development project from intake to tap (Aizuwakamatsu City, Fukushima Prefecture)
Jointly with Fujitsu Ltd., began a demonstration experiment on maintenance and inspection of water purification plants utilizing big data analysis and wearable devices
Established Meta Water Tech Co., Ltd., responsible for the maintenance and management of water and sewer facilities
The "Simultaneous Nitrification Denitrification System," developed through joint research with the Tokyo Metropolitan Sewerage Bureau and Tokyo Metropolitan Sewerage Service Co., Ltd., received the 2014 Nikkei Global Environment Technology Award for Excellence
Listed on the First Section of the Tokyo Stock Exchange
Launched the "Toyokawa Purification Center Sludge Treatment Facility Development and Operation Project," the first in Japan to adopt the RO method for sewerage projects
The world's largest ozone system for water purification is operational in the United States (Wylie Water Treatment Plant, Texas)
Signed an agreement with Yokohama City Waterworks Bureau for the Water Source Eco Project "W-eco·p"
Won the Gold Award in the Water Technology Company of the Year category at the Global Water Award 2015
Started collaboration with NTT Data Corporation in the service field for water and sewer projects
Started broadcasting TBS Radio "Meta Water presents Water Sound Sketch"
First entrusted with the development and operation of a recycling facility using the PFI method (Gotemba City and Oyama Town Wide Administrative Union Waste Reuse Facility)
Fully acquired Aqua-Aerobic Systems, Inc., a U.S. water treatment engineering company
Established an "Equipment Operator Training Center" in anticipation of the advancement of comprehensive and regional water and sewer projects
Established a satellite space "Island" as part of work style reform
Participated in a third-party allotment of shares of Sky Seeker Inc., and formed a capital and business alliance
10th anniversary of establishment
Announced new corporate philosophy "Keep Going. To Continue."
Established Singapore Representative Office
Conducted share buyback and tender offer for treasury shares
Fully acquired U.S. "Wigen Companies, Inc." to expand North American operations
Disposed of treasury shares through third-party allotment and canceled treasury shares
Launched Japan's first concession project in the industrial water supply sector, "Kumamoto Prefecture Ariake and Yatsushiro Industrial Water Supply Operation Project"
Started Japan's first integrated concession project for water, industrial water, and sewage, "Miyagi Prefecture Kamikou Sewage Integrated Public-Private Partnership Operation"
Completed Cambodia's first public sewerage facility in Phnom Penh
Announced purpose "Coexist with the community, protect water and environmental cycles, and support people's lives"
Established Phnom Penh branch in the Kingdom of Cambodia
Acquired all shares of U.S. Schwing Bioset, Inc.
§07
News
39 ARTICLES
Meta Water Signs Water PPP Agreement in Shinyokohama City, Ehime Prefecture
Meta Water Co., Ltd. entered into a business agreement on November 6, 2026, with Shinyokohama City, Ehime Prefecture, through its special purpose vehicle Wells Akagane Co., Ltd., for the "Shinyokohama City Upper Waterworks and Sewage Facility Comprehensive Outsourcing Project." The signing ceremony was held on the same day, attended by the mayor of Shinyokohama City and about 30 other stakeholders. The Water PPP approach aims to outsource the long-term operation, management, and renovation of water supply, industrial water, and sewage projects to private companies, thereby achieving efficient and sustainable facility maintenance and management.
Meta Water Receives Water Cycle ACTIVE Corporate Certification for the Third Consecutive Year
Meta Water Co., Ltd. has been certified as a "Water Cycle ACTIVE" corporate by the Cabinet Secretariat Water Cycle Policy Headquarters Secretariat for the third consecutive year. Key initiatives include forest conservation activities in the Okutama forest and water cycle education and awareness programs for children. The certification was obtained in the "Human Resources Funding" category, and the company has indicated its intention to continue collaborating with local communities to promote the importance of water cycling.
Contract Signed for Construction of Kitamama No.1 Water Reuse Center
MetaWater has entered into a construction contract with the Tokyo Metropolitan Waterworks Bureau for the "Kitamama No.1 Water Reuse Center Reactor Tank Machinery and Equipment Reconstruction Work." The contract date is October 29, 2026, and the contract amount is 1.65 billion yen, tax included. The construction will involve installing and removing equipment such as a spray device, water control door system, and flocculant injection system.
Aqua Design Hayama Co., Ltd. Signs Implementation Contract for Hayama Town Sewage Water PPP
Aqua Design Hayama Co., Ltd. signed an implementation contract on October 30 with Hayama Town for the "Hayama Town Sewage Water PPP (Concession of Treatment Plant and Other Facilities) Project." The contract signing ceremony took place on November 6. Under this project, the company will take on the long-term integrated maintenance, renovation, and operation of sewage facilities such as purification centers and intermediate pumping stations.
Regarding the Resumption of Our Website and Inquiry Function
The system update to address PHP vulnerabilities has been completed, and the official website has been re-released. The inquiry form is currently temporarily suspended due to maintenance. We will resume reception as soon as the work is finished, so please wait a little longer.
Ceremony Held to Mark the Full-Scale Shipment of Sanriku Caviar
The joint venture in which Metawater has invested began full-scale shipments of “Sanriku Caviar: Ofunato’s Dew,” whose first shipment was made in February 2026. On October 10, it held a ceremony to mark the start of full-scale shipments at the Ofunato City Industrial Festival, attended by about 30 people, including stakeholders and guests of honor. The company is engaged in “aquaponics,” a form of circular agriculture that combines land-based sturgeon farming with hydroponic vegetable cultivation.
Meta Water signs contract for electrical equipment works at the left-bank treatment plant of the Sakeon River watershed sewage system
Meta Water Co., Ltd. contracted with the Japan Sewage Works Group for electrical equipment works at the left-bank treatment plant of the Sakeon River watershed sewage system located at 1-1 Nishi-Sakeon, Odawara City, Kanagawa Prefecture, and signed the construction contract on September 18, 2026. The contract amount is 1,600,500,000 yen (tax included), and the construction period is from September 19, 2026 to March 18, 2030. The project will include installation of receiving substation equipment, sludge incineration operation equipment, sludge treatment monitoring and control equipment, and other related facilities.
Organizational Changes and Personnel Transfers Effective October 1
Effective October 1, 2026, a Corporate Strategy Office will be established within the Corporate Planning Headquarters. Hiroyuki Ishizaki, currently General Manager of the Sales Headquarters, will become Deputy General Manager; Katsumi Ito will become Deputy General Manager and General Manager of the South Kanto Sales Department. Kenji Kojima, currently General Manager of the Corporate Planning Headquarters, will move from the head of Sales to lead the Corporate Strategy Office.
Metawater project to build Cambodia’s first sewage treatment plant wins JAPAN Award
The Phnom Penh Sewerage Improvement Project, in which Metawater Co., Ltd. participated, built the first public sewage treatment plant in Phnom Penh, Cambodia, and won the ninth JAPAN Construction International Award organized by the Ministry of Land, Infrastructure, Transport and Tourism. The ceremony was held at Jiji Press Hall on September 3, 2026. The award recognized the company’s proprietary Pre-treated Trickling Filter (PTF) method and sustainable operational framework. It highlights the project’s contribution to improving water quality and addressing wastewater treatment challenges arising from urbanization in Cambodia.
METAWATER Holds Eighth Corporate Training Program for Teachers
METAWATER Co., Ltd. held its eighth private-sector training program for teachers, organized by the Japan Institute for Social and Economic Affairs. Participants toured water supply and sewerage facilities and conducted experiments to learn about the importance of the water cycle and the need to protect it.
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Public records
GOV
National Tax Agency basic information8010401075293
Source: National Tax Agency Corporate Number Publication Site, basic three items
Trade name
メタウォーター株式会社
Trade name (kana)
メタウォーター
Name in English
Corporation type
301
Address
〒101-0041 東京都千代田区神田須田町１丁目２５番地
Postal code
1010041
Prefecture code
13
City code
101
Address outside Japan
Prefecture in English
City in English
Address outside Japan in English
Corporate number assignment date
2015-10-05
Update date
2021-04-12
Change date
2021-04-05
Registry closure date
Reason for registry closure
Successor corporate number
Details of the change
令和３年４月１日鳥取市雲山１５３番地３６鳥電商事株式会社（9270001000492）を合併
Latest record
1
Excluded from search
0
Processing type
71
Correction type
0
Trade name image ID
Address image ID
Sequence number
2341248
METI gBizINFO8010401075293
Source: gBizINFO (Ministry of Economy, Trade and Industry)
