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WOTA

Decentralizing water infrastructure using water re-circulation

Photo of Ryo Yamada

Ryo Yamada

Co-founder & VP, Incubation at WOTA

More about Ryo »
Employees 51–100
Headquarters Tokyo, Japan
WOTA is developing small-scale decentralized water reuse systems and autonomous control systems for water treatment. Their first product, WOTA BOX, launched in November 2019 as a portable water reclamation treatment plant that can recycle and reuse more than 98% of domestic wastewater. In a device that is only 0.25 cubic meters in size, it enables continuous water use in situations where there is no water supply (such as when water is cut off due to a disaster). Their second product, WOSH, is a water circulation hand washing machine that can be installed where there is no running water. It also has the function to sterilize the surface of smartphones by over 99.9%, contributing to public space hygiene. The company also offers WOTA PLANT, a cloud-based data management service focused on collecting, analyzing, and coordinating data for water treatment plants, digitizing, and "smartening" existing "dumb" facilities.

Notable Achievements

  • WOTA’s Core AI Technology reduces operation management time by 50% and achieves lower costs than water utility rates in Northern Europe ($10
  • Selected as an Earthshot Prize Finalist for 2021 in the "Build a Waste-Free World" category.
  • WOTA BOX has so far provided disaster relief for 13 municipalities, 20 evacuation centers, and 20,000 people.

Currently Operating in One Region

Press Mentions

February 21, 2023

Japan Sends Water-recycling Shower Set to Turkey

Read on The Japan News »

March 1, 2024

Revolutionary technology could help prevent nearly 40% of the world from experiencing ‘water stress’ by 2050 — here’s how

Read on The Cool Down »

December 14, 2023

A&B tests WOTA Box, first portable water reuse system from Japan; home use test on the cards

Read on Antigua Observer Newspaper »

October 24, 2023

Tokyo start up aims to provide alternative water infrastructure

Read more »

September 1, 2023

Startup aims to recycle domestic wastewater | NHK WORLD-JAPAN News

Read on NHK WORLD »

Work at WOTA

Posted June 13, 2023

フルスタックエンジニア

Nihonbashi, Chuo City, Tokyo 103-0027, Japan

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Posted May 26, 2023

企画(統計・人間工学バックグラウンドの事業設計者)

Nihonbashi, Chuo City, Tokyo 103-0027, Japan

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Posted May 19, 2023

世界の水問題を解決するフィールドエンジニア

Nihonbashi, Chuo City, Tokyo 103-0027, Japan

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Posted March 6, 2023

電気・電子設計者

Nihonbashi, Chuo City, Tokyo 103-0027, Japan

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Posted March 6, 2023

機械設計者

Nihonbashi, Chuo City, Tokyo 103-0027, Japan

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Posted February 14, 2023

水処理エンジニア

Nihonbashi, Chuo City, Tokyo 103-0027, Japan

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