Top 10 Water Treatment Companies in India
Introduction
Water scarcity is a pressing concern in India, with nearly 40% of the population facing water stress. As urbanization and industrial activities rise, the need for effective water treatment has become vital. Companies that offer robust water purification and wastewater treatment systems play a crucial role in addressing this challenge. This blog explores the top 10 water treatment companies in India that are driving change through advanced technologies and sustainable practices.
Table of Contents
-
Thermax Limited
-
VA Tech Wabag
-
Ion Exchange India Ltd
-
Triveni Engineering & Industries Ltd
-
Larsen & Toubro (L&T) – Water & Effluent Treatment
-
SFC Environmental Technologies Pvt. Ltd
-
Doshion Veolia Water Solutions
-
UEM India Pvt. Ltd
-
Toshiba Water Solutions
-
Aquatech Systems Asia Pvt. Ltd
-
Conclusion
-
FAQs
1. Thermax Limited
Thermax is a pioneer in energy and environment solutions. Headquartered in Pune, it has played a significant role in industrial water treatment and zero liquid discharge (ZLD) solutions. Thermax designs and installs water treatment plants for both municipal and industrial clients.
Key Services: Effluent treatment, sewage treatment, desalination, ZLD
Strength: Strong R&D and turnkey project execution
2. VA Tech Wabag
VA Tech Wabag is one of India’s leading pure-play water technology companies. It specializes in designing, building, and operating water and wastewater treatment plants across municipal and industrial sectors.
Key Services: Wastewater recycling, desalination, drinking water treatment
Strength: Global presence and strong government project portfolio
3. Ion Exchange India Ltd
Ion Exchange has been at the forefront of water and environmental management for over five decades. Known for innovation, the company offers everything from residential water purifiers to industrial treatment plants.
Key Services: Water purification, wastewater treatment, RO systems
Strength: Wide product range and in-house manufacturing
4. Triveni Engineering & Industries Ltd
Through its Water Business Group, Triveni Engineering has contributed to water infrastructure projects across India. It has vast experience in building large water treatment and wastewater management systems.
Key Services: Drinking water supply schemes, effluent treatment plants
Strength: Government contracts and EPC capabilities
5. L&T Water & Effluent Treatment (WET)
Larsen & Toubro, one of India’s largest engineering firms, has a specialized water treatment division. The WET division handles turnkey water infrastructure projects for urban and rural India.
Key Services: Wastewater treatment, irrigation, stormwater management
Strength: Large-scale implementation and project execution
6. SFC Environmental Technologies Pvt. Ltd
SFC is a global environmental technology company known for introducing the C-Tech Sequencing Batch Reactor (SBR) process to India. It focuses on energy-efficient and compact sewage treatment solutions.
Key Services: SBR wastewater treatment, reuse systems
Strength: Proven SBR technology and modular plant design
7. Doshion Veolia Water Solutions
A joint venture between Doshion Ltd and Veolia Water, this company provides advanced environmental solutions for industries. It delivers both engineering and maintenance services for water treatment facilities.
Key Services: Industrial process water treatment, ZLD, membrane systems
Strength: Collaboration with global technology leaders
8. UEM India Pvt. Ltd
Now part of Toshiba Group, UEM India has extensive experience in delivering water and wastewater treatment projects for municipal and industrial clients across the country.
Key Services: Industrial effluent treatment, water reuse, packaged plants
Strength: End-to-end solutions and global technology access
9. Toshiba Water Solutions
Toshiba Water Solutions provides comprehensive water and wastewater treatment services, especially for municipal corporations and large industrial zones.
Key Services: Water purification, sewage treatment, O&M services
Strength: Global expertise with localized execution
10. Aquatech Systems Asia Pvt. Ltd
Aquatech is recognized for its expertise in zero liquid discharge and water recycling technologies. It serves multiple industries including pharma, power, textile, and refineries.
Key Services: Water recycling, ZLD, membrane filtration systems
Strength: Strong focus on sustainability and innovation
Conclusion
India’s water treatment sector is evolving rapidly, driven by urgent needs and growing environmental awareness. The companies listed above are not only market leaders but also pioneers in bringing next-generation technologies to the water sector. Whether you're seeking municipal-scale solutions or industrial applications, these firms offer reliable, sustainable, and innovative options.
FAQs
Q1. What are water treatment companies responsible for?
Water treatment companies handle the purification, filtration, and management of water for safe human consumption, industrial use, and environmental sustainability.
Q2. Which is the best water treatment company in India?
There is no single best company—it depends on your need. For industrial solutions, Thermax and Ion Exchange are top choices, while VA Tech Wabag is strong in municipal projects.
Q3. Do these companies offer solutions for RO systems and household purification?
Some, like Ion Exchange and Thermax, provide residential and industrial RO systems, while others focus mainly on municipal and commercial sectors.
Q4. How can I choose the right water treatment company for my industry?
Evaluate the company’s past projects, certifications, technology offerings, and after-sales support. Also, check if they offer turnkey project services.
Also Read - Top Water Treatment Companies in India 2025 Guide
