InterAqua 2026 – Tokyo, Japan

• December 16, 2026
  Event date:
• December 18, 2026
  Event end:

What to expect

InterAqua is Japan’s largest water business exhibition and one of the largest specialized water business exhibitions in Japan that supports sustainable corporate activities. It is International Water Solution Exhibition, unique exhibition for water industry, showcasing materials, components, and apparatus which are indispensable in process of water reuse, industrial cleaning, drainage, and recycle use for water and its energy saving and cost reduction.

Expect 18th Water Solutions Exhibition with focus on sustainable business practices, cutting-edge technologies in water treatment, and comprehensive solutions for industry. The exhibition is part of Energy Innovation Comprehensive Exhibition and includes special exhibition titled Water Treatment Solutions for Industry, where you can see technologies and products related to solving water treatment challenges in factories and facilities, recovering and reusing water resources, and environmental measures.

The event brings together world’s leading players in water treatment industry, diverse range of professionals and experts from water treatment industry, and offers unique opportunity to explore latest developments in water solutions, from materials and plant equipment to contr. Special highlight is PFAS Countermeasures Technology Consortium Pavilion, addressing urgent issue of PFAS in water quality, aiming to commercialize decomposition and environmental remediation technologies.

You can expect exhibits on industrial water infrastructure, energy-generation and energy-saving technologies that utilize wastewater, large-flow water disinfection systems with UV-C LEDs, MABR technology for enhanced wastewater treatment, and comprehensive measures to address PFAS contamination in groundwater and rivers.

Event dates

Event Dates: December 16–18, 2026

Venue: Tokyo Big Sight, West Halls 1 and 2, also listed as West South Hall and Conference Tower, South Exhibition Halls 2 and 4, 3-11-1 Ariake, Koto-ku, Tokyo 135-0063, Japan

Hours: 10:00-17:00, Exhibition held

Official Site: https://www.interaqua.jp/, English https://en.www.interaqua.jp/

Contact: TEL 03-5657-0757, FAX 03-5657-0645, E-mail interaqua@jtbcom.co.jp

InterAqua 18th Water Solutions Exhibition will be held Wednesday, December 16 to Friday, December 18, 2026, with additional January edition of InterAqua 2026 17th Comprehensive Water Solutions Exhibition held January 28 to 30 at Tokyo Big Sight South Halls 2 and 4.

Visiting this event? Don’t miss out on these amazing activities and local experiences while you’re here.

Venue & exhibition site

Primary Venue: Tokyo Big Sight, West Halls 1 and 2, West South Hall and Conference Tower, South Exhibition Halls 2 and 4, 3-11-1 Ariake, Koto-ku, Tokyo 135-0063, Japan. Tokyo Grand Vision Tokyo International Exhibition Center is alternative name.

The venue offers large exhibition floors, conference tower for seminars, and special pavilions for PFAS countermeasures and water treatment solutions for industry.

Facilities: Exhibition halls with booths such as 2S-S17 for Stanley Electric UV-C LED system, conference rooms for presentations on PFAS removal using newly developed hollow fiber NF membrane, and wastewater treatment blowers contributing to energy saving.

Co-located Events: Part of Energy Innovation Comprehensive Exhibition, with ENEX Thermal Solutions showcasing heat-related technologies and other energy and environment exhibitions.

Organizer: JTB Communication Design Inc., with support from Japan water industry associations.

Full industry programme

The programme is designed as comprehensive water solutions exhibition supporting sustainable corporate activities.

Main Exhibition: InterAqua 18th Water Solutions Exhibition, 18th International Water Solution Exhibition, 17th Comprehensive Water Solutions Exhibition depending on edition, showcasing materials, components, and apparatus indispensable in water reuse, industrial cleaning, drainage, recycle use, energy saving and cost reduction.

Special Exhibition: Water Treatment Solutions for Industry, where you can see technologies and products related to solving water treatment challenges in factories and facilities, recovering and reusing water resources, environmental measures.

PFAS Pavilion: PFAS Countermeasures Technology Consortium Pavilion, special exhibit focusing on urgent issue of PFAS in water quality, aiming to commercialize decomposition and environmental remediation technologies, offering insights into latest PFAS countermeasure trends for 2026. Includes sessions on removal of trace contaminants including PFAS using newly developed hollow fiber NF membrane.

Conference Programme: Sessions on comprehensive measures to address PFAS contamination in groundwater and rivers, latest solutions for industrial water infrastructure, energy-generation and energy-saving technologies that utilize wastewater, wastewater treatment blowers contributing to energy saving, maintenance saving and low noise, new IoT-connected technology cloud monitoring and machine learning support stable operation of wastewater treatment plants.

Special Features: Large-flow water disinfection system with UV-C LEDs at 265 nm, MABR model showcase for enhanced wastewater treatment, and energy innovation exhibits.

Featured companies & exhibitors

InterAqua brings together world’s leading players in water treatment industry.

Major Exhibitors:
Stanley Electric Co., Ltd.: Exhibiting new product large-flow water disinfection system equipped with UV-C LEDs at 265 nm enabling efficient inactivation, water flow rate 10L per min to 10 cubic meters per hour or more, booth 2S-S17.
Kowa Company: Exhibiting at InterAqua 17th Comprehensive Water Solutions Exhibition, showcasing Water Treatment Solutions for Industry, technologies for solving water treatment challenges in factories and facilities, recovering and reusing water resources.
Nihon Suido Consultants Co., Ltd.: Introducing comprehensive measures to address PFAS contamination in groundwater and rivers, latest solutions for industrial water infrastructure including energy-generation and energy-saving technologies that utilize wastewater, venue South Exhibition Halls 2 and 4.
Sekisui Chemical: Paving way for enhanced wastewater treatment with MABR technology, showcasing actual MABR model as part of participation.
Youtec: Participating in InterAqua 2026 exhibition, integrated water solutions.
Other Exhibitors: Companies showcasing materials, components, apparatus for water reuse, industrial cleaning, drainage, recycle use.

International Exhibitors: Companies from Asia and Europe participating in 18th edition, with 16th edition being unique exhibition for water industry.

Research Institutions: PFAS Countermeasures Technology Consortium and other research groups.

Industry sectors & technologies

InterAqua covers wide range of water-related sectors.

Core Sectors:
Water Treatment Solutions: Water treatment solutions for industry, solving water treatment challenges in factories and facilities.
Water Reuse and Recovery: Recovering and reusing water resources, water reuse, recycle use.
Industrial Cleaning: Industrial cleaning technologies and apparatus.
Drainage and Wastewater: Drainage, wastewater treatment, enhanced wastewater treatment with MABR technology.
PFAS Countermeasures: PFAS contamination in groundwater and rivers, PFAS removal using hollow fiber NF membrane, PFAS decomposition and environmental remediation.
Energy Generation: Energy-generation and energy-saving technologies that utilize wastewater, energy saving and cost reduction.
Disinfection: Large-flow water disinfection system with UV-C LEDs at 265 nm, efficient inactivation.
IoT and Monitoring: Cloud monitoring and machine learning support stable operation of wastewater treatment plants, IoT-connected technology.

Emerging Technologies: MABR technology, UV-C LED system, hollow fiber NF membrane, wastewater treatment blowers with energy saving, maintenance saving and low noise.

Products, machinery & innovations

Products on display span water industry.

Machinery: Large-flow water disinfection system running water reactor that uses 265 nm UV-C LEDs, water flow rate 10L per min to 10 cubic meters per hour or more, wastewater treatment blowers, MABR model for enhanced wastewater treatment.

Materials: Materials, components, and apparatus indispensable in process of water reuse, industrial cleaning, drainage, recycle use, hollow fiber NF membrane for removal of trace contaminants including PFAS.

Innovations: Energy-generation and energy-saving technologies that utilize wastewater, comprehensive measures to address PFAS contamination, IoT-connected technology for wastewater treatment plants, cloud monitoring and machine learning.

Solutions: Water Treatment Solutions for Industry, sustainable corporate activities support, environmental measures.

Special Exhibits: PFAS Countermeasures Technology Consortium Pavilion showcasing latest trends in PFAS countermeasures in water quality 2026.

Demonstrations & technical presentations

Demonstrations and technical presentations are core part of InterAqua.

Technical Presentations: Sessions on removal of trace contaminants including PFAS using newly developed hollow fiber NF membrane at 11:55 to 12:25, wastewater treatment blowers contributing to energy saving, maintenance saving and low noise, new IoT-connected technology cloud monitoring and machine learning at 13:35 to 14:05.

Live Demonstrations: Exhibitors showcase actual MABR model, UV-C LED system running water reactor, and water treatment solutions for industry.

PFAS Pavilion Demonstrations: PFAS Countermeasures Technology Consortium pavilion demonstrating decomposition and environmental remediation technologies.

Business Matching: Exhibition is one of largest specialized water business exhibitions in Japan that supports sustainable corporate activities, providing platform for business matching.

Conference Tower Sessions: Conference tower hosts seminars on industrial water infrastructure and PFAS countermeasures.

Ticket types & registration

General Admission: Free with advance online registration via official website https://www.interaqua.jp/ and https://en.www.interaqua.jp/. Registration via organizer website.

Visitor Pre-Registration: Online pre-registration via official site, with entry to exhibition and special pavilions.

Exhibitor Registration: Exhibitor application via organizer JTB Communication Design Inc., contact TEL 03-5657-0757, FAX 03-5657-0645, E-mail interaqua@jtbcom.co.jp.

Business Matching: Business matching registration for companies seeking water treatment solutions for industry.

Special Pavilion Access: Access to PFAS Countermeasures Technology Consortium Pavilion and Water Treatment Solutions for Industry special exhibition included with general admission.

Online Guidebook: Exhibitor list available via online guidebook with booth numbers such as 2S-S17.

All pricing for visitors is free with registration, exhibitor pricing on request.

Estimated Pricing from Previous Editions: Visitor free, exhibitor package $2,000 USD to $4,500 USD depending on booth size, based on similar water exhibitions.

Trade visitor & professional access

Professional Focus: One of largest specialized water business exhibitions in Japan that supports sustainable corporate activities, unique exhibition for water industry.

Audience: Trade public, professionals and experts from water treatment industry, world’s leading players in water treatment industry.

Business Platform: Unique opportunity to explore latest developments in water solutions, from materials and plant equipment to contr, and showcase materials, components, apparatus indispensable in water reuse, industrial cleaning, drainage, recycle use.

International Access: International Water Solution Exhibition with international exhibitors, English website available.

Trade Categories: Water treatment, industrial cleaning, drainage, recycle, energy saving, cost reduction, PFAS countermeasures.

Exhibition halls & floor plan

Hall Layout: Tokyo Big Sight West Halls 1 and 2, West South Hall and Conference Tower, South Exhibition Halls 2 and 4, 3-11-1 Ariake, Koto-ku, Tokyo 135-0063, Japan.

Zoning:
Water Treatment Solutions Zone: Water Treatment Solutions for Industry special exhibition.
PFAS Pavilion Zone: PFAS Countermeasures Technology Consortium Pavilion, PFAS Pavilion for latest trends in water quality PFAS countermeasures.
Disinfection Zone: UV-C LED system and MABR technology.
Energy Innovation Zone: Energy-generation and energy-saving technologies that utilize wastewater, part of Energy Innovation Comprehensive Exhibition.

Booth Examples: Booth No. 2S-S17 for Stanley Electric, South Halls 2 and 4 for Nihon Suido Consultants and Kowa.

Floor Plan Access: Available via official website https://www.interaqua.jp/ and English https://en.www.interaqua.jp/ with exhibitor list and booth numbers.

Business meetings & networking

InterAqua offers business matching for professional visitors.

Business Matching: Exhibition supports sustainable corporate activities, providing platform for business matching between water treatment solution providers and factories and facilities seeking solutions.

Special Exhibition Networking: Water Treatment Solutions for Industry allows direct meetings with companies solving water treatment challenges in factories and facilities.

PFAS Consortium Networking: PFAS Countermeasures Technology Consortium Pavilion enables networking on decomposition and environmental remediation technologies commercialization.

International Networking: International Water Solution Exhibition with international exhibitors creates cross-border business opportunities.

Conference Networking: Conference tower sessions facilitate networking among professionals discussing PFAS contamination and industrial water infrastructure.

Event rules & visitor information

Admission: Free with advance online registration via official website, business card may be required for on-site registration.

Hours: 10:00 to 17:00 daily, exhibition held at Tokyo Big Sight West South Hall and Conference Tower.

Conduct: Follow organizer JTB Communication Design Inc. rules, no unauthorized commercial activities, respect exhibitor booths.

Language: Japanese is primary, with English support at many booths and English website https://en.www.interaqua.jp/.

Photography: Photography allowed in most areas, but some booths may restrict due to prototype confidentiality.

Safety: Follow Tokyo Big Sight safety rules.

Children: Business-focused event, children not recommended, but open to students and researchers with supervision.

How to get there

Tokyo Big Sight is located in Ariake, Koto-ku, Tokyo.

By Train: Yurikamome Line to Tokyo Big Sight Station or Kokusai Tenjijo Station, then short walk to Tokyo Big Sight. Rinkai Line to Kokusai Tenjijo Station, then walk.

By Bus: Toei Bus and highway buses from Tokyo Station, Shinjuku, and Yokohama to Tokyo Big Sight.

By Car: Via Bayshore Route to Ariake Interchange, then to Tokyo Big Sight parking. Parking at Tokyo Big Sight limited and expensive.

By Air: Haneda Airport to Tokyo Big Sight via monorail and Yurikamome, or limousine bus. Narita Airport via Narita Express and Yurikamome or airport limousine bus.

Shuttle: Free shuttle buses from nearby stations to Tokyo Big Sight during large exhibitions.

Public transport & parking

Public Transport:
Yurikamome Line: Most convenient, direct to Tokyo Big Sight Station, 5 minute walk to West Halls 1 and 2.
Rinkai Line: To Kokusai Tenjijo Station, 7 minute walk to venue.
Bus: Local buses from Toyosu, Shimbashi, and Tokyo Station to Tokyo Big Sight.

Parking:
Tokyo Big Sight Parking: Large parking lots available, but expensive and crowded during InterAqua. Rate approximately $10.00 USD to $15.00 USD per day.
Nearby Parking: Ariake area parking with shuttle, and nearby commercial facilities parking.

Recommendation: Public transport is recommended due to traffic congestion during InterAqua and concurrent energy exhibitions.

Accessibility: Barrier-free access via Yurikamome and Rinkai Line elevators and Tokyo Big Sight accessible entrances.

Accommodation areas

Ariake and Odaiba Area: Best for proximity to venue. Hotels such as Tokyo Bay Ariake Washington Hotel, Grand Nikko Tokyo Daiba, and Hotel Sunroute Ariake offer rates $100.00 USD to $200.00 USD per night. Walking distance or one station to Tokyo Big Sight.

Toyosu and Shimbashi Area: Hotels such as Mitsui Garden Hotel Toyosu and Royal Park Hotel Shiodome offer $90.00 USD to $160.00 USD per night, 15 minutes by Yurikamome to venue.

Tokyo Station and Marunouchi Area: For those combining with Tokyo business, hotels in Marunouchi, Ginza, and Nihonbashi offer $120.00 USD to $300.00 USD per night, 30 minutes by train to Tokyo Big Sight.

Shinjuku and Shibuya Area: Hotels for those preferring central Tokyo nightlife, rates $110.00 USD to $250.00 USD per night, 40 minutes by train.

Narita and Haneda Airport Area: For overseas exhibitors arriving via airports, hotels near airports offer $80.00 USD to $150.00 USD per night with limousine bus to Tokyo Big Sight.

Early booking essential as event attracts many international visitors.

Accessibility

Organizers aim for inclusive access.

Venue Access: Tokyo Big Sight has barrier-free entrances, accessible restrooms, elevators, and priority viewing areas.

Transport Access: Tokyo Big Sight Station and Kokusai Tenjijo Station have elevators and accessible routes to venue. Shuttle buses include accessible vehicles.

Exhibition Access: Exhibition halls West Halls 1 and 2 and South Halls 2 and 4 have accessible aisles.

Communication: Japanese and English signage, plus pictograms, throughout venue. Information desk staffed with English-speaking volunteers.

Service Animals: Service dogs permitted in outdoor areas and exhibition halls with prior notification.

Previous year’s highlights

Recent editions show strong focus on PFAS and sustainable water solutions.

InterAqua 2025 was held January 29 to 31 at Tokyo Big Sight, 3-11-1 Ariake, Koto-ku, Tokyo, Japan, described as unique event that brings together world’s leading players in water treatment industry, offering unique opportunity to explore latest developments in water solutions, from materials and plant equipment to contr. InterAqua 2025 featured international water solution exhibition with diverse professionals and experts.

InterAqua 2026 January edition, 17th Comprehensive Water Solutions Exhibition, was held January 28 to 30 at Tokyo Big Sight South Halls 2 and 4, with exhibitors such as Stanley Electric planning to exhibit new product large-flow water disinfection system with UV-C LEDs at 265 nm, Kowa showcasing Water Treatment Solutions for Industry, Nihon Suido Consultants introducing comprehensive measures to address PFAS contamination, and Sekisui Chemical showcasing MABR model. Exhibition was part of Energy Innovation Comprehensive Exhibition.

The 18th edition scheduled for December 16 to 18 2026 will include PFAS Countermeasures Technology Consortium Pavilion addressing urgent issue of PFAS in water quality, with aim of commercializing decomposition and environmental remediation technologies, and special exhibition titled Water Treatment Solutions for Industry.

Official tickets & registration

All registration must be via official channels.

Official Website: https://www.interaqua.jp/ and https://en.www.interaqua.jp/ – Provides exhibition information, registration, program schedules, and exhibitor profiles.

Contact: TEL 03-5657-0757, FAX 03-5657-0645, E-mail interaqua@jtbcom.co.jp, organizer JTB Communication Design Inc.

Registration Portal: Online pre-registration via official website, free admission.

Exhibitor Application: Apply via official site or contact email for booth in West Halls 1 and 2 or South Halls 2 and 4.

Important: Pre-registration required for all attendees. Business card recommended for on-site registration. Exhibition held at Tokyo Big Sight West South Hall and Conference Tower.

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