Top 10 Companies in the Dechlorination Chemicals Industry (2025): Market Leaders Driving Sustainable Water Treatment

In Business Insights
December 05, 2025

The Global Dechlorination Chemicals Market was valued at USD 1.87 Billion in 2023 and is projected to reach USD 2.65 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 4.8% during the forecast period (2024–2030). This expansion is driven by stringent environmental regulations governing wastewater discharge, escalating global water scarcity, and the increasing adoption of advanced water treatment technologies across municipal and industrial sectors.

As industries and municipalities worldwide intensify their focus on environmental stewardship and regulatory compliance, the role of effective dechlorination has become paramount. In this analysis, we profile the Top 10 Companies in the Dechlorination Chemicals Industry—specialty chemical producers, water treatment giants, and technology innovators shaping the future of water safety and sustainability.

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🔟 1. Veolia Water Technologies

Headquarters: Paris, France
Key Offering: Sulfite-based Dechlorination Chemicals, Activated Carbon Systems, Integrated Dechlorination Solutions

Veolia Water Technologies is a global leader in water and wastewater treatment solutions, providing comprehensive dechlorination systems for municipal and industrial clients. Their expertise spans chemical dosing technologies, advanced oxidation processes, and turnkey dechlorination plants.

Sustainability Initiatives:

  • Development of energy-efficient dechlorination processes

  • Integration of digital monitoring for optimized chemical usage

  • Commitment to circular economy principles in water management


9️⃣ 2. American Water Chemicals Inc.

Headquarters: Oldsmar, Florida, USA
Key Offering: Sodium Bisulfite, Sodium Metabisulfite, Custom Dechlorination Blends

American Water Chemicals specializes in high-purity dechlorination chemicals for power plants, refineries, and membrane protection systems. Their products are engineered to prevent biofouling and extend the lifespan of critical water treatment infrastructure.

Innovation Focus:

  • Proprietary antiscalant and dechlorination formulations

  • R&D in membrane-compatible dechlorination agents


8️⃣ 3. Guardian Chemicals

Headquarters: Brampton, Ontario, Canada
Key Offering: Guardian Chlorine Removal Products, Specialty Sulfites, Dechlorination Tablets

Guardian Chemicals provides a diverse portfolio of dechlorination products tailored for various applications, including swimming pools, industrial water systems, and food processing facilities. Their tablet and liquid formulations offer precise chlorine neutralization.

Market Strengths:

  • Strong distribution network across North America

  • Custom formulations for specific industry requirements


7️⃣ 4. Feedwater Ltd

Headquarters: Manchester, United Kingdom
Key Offering: Sodium Sulfite, Dechlorination Dosing Systems, Water Treatment Chemicals

Feedwater Ltd is a UK-based specialist in water treatment chemicals and engineering services. They supply high-quality dechlorination chemicals to the power generation, pharmaceutical, and food and beverage industries, complemented by technical support and system design.

Technical Capabilities:

  • On-site water analysis and treatment audits

  • Automated dosing system design and implementation

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6️⃣ 5. Osmonix (a Marmon Water/Berkshire Hathaway Company)

Headquarters: Addison, Illinois, USA
Key Offering: Activated Carbon Filters, Dechlorination Media, Whole House Water Systems

Osmonix specializes in activated carbon filtration systems that effectively remove chlorine and chloramines from water supplies. As part of Marmon Water, they leverage extensive R&D capabilities to deliver residential, commercial, and industrial dechlorination solutions.

Technology Leadership:

  • Advanced coconut shell activated carbon media

  • High-capacity catalytic carbon for chloramine removal


5️⃣ 6. Ferguson Enterprises

Headquarters: Newport News, Virginia, USA
Key Offering: Distribution of Dechlorination Chemicals, Water Treatment Equipment, Technical Services

Ferguson Enterprises is North America’s leading distributor of plumbing and waterworks supplies, including a comprehensive range of dechlorination chemicals from multiple manufacturers. Their value lies in logistics expertise and local market knowledge.

Distribution Excellence:

  • Extensive branch network across the United States

  • Technical support and chemical handling training


4️⃣ 7. Norwalk Wastewater Equipment Company

Headquarters: Norwalk, Ohio, USA
Key Offering: Sulfur Dioxide Dechlorination Systems, Chemical Feed Systems, Wastewater Treatment Solutions

Norwalk Wastewater Equipment Company designs and manufactures specialized dechlorination systems, particularly sulfur dioxide-based solutions for municipal wastewater treatment plants. Their engineered systems ensure compliance with stringent discharge limits.

Engineering Expertise:

  • Turnkey sulfur dioxide dechlorination installations

  • Safety-focused system design for hazardous chemicals


3️⃣ 8. BASF SE

Headquarters: Ludwigshafen, Germany
Key Offering: Sodium Bisulfite Solutions, Catalyst Protection Chemicals, Comprehensive Water Solutions

BASF, a global chemical giant, produces high-purity sodium bisulfite and other reducing agents used for dechlorination in various industrial processes. Their chemicals are critical for protecting catalysts in petroleum refining and ensuring water quality in multiple applications.

Global Reach:

  • Production facilities across North America, Europe, and Asia

  • Integration with broader water treatment chemical portfolios


2️⃣ 9. Chemtrade Logistics

Headquarters: Toronto, Canada
Key Offering: Sodium Bisulfite, Sodium Hydrosulfite, Regenerated Caustic Solutions

Chemtrade Logistics is a leading supplier of sulfuric acid and sodium-based chemicals, including sodium bisulfite for dechlorination applications. They serve diverse markets, including pulp and paper, water treatment, and environmental services.

Production Capacity:

  • Multiple sodium bisulfite production facilities

  • Strategic positioning near key industrial corridors


1️⃣ 10. Hawkins, Inc.

Headquarters: Roseville, Minnesota, USA
Key Offering: Water Treatment Chemicals, Dechlorination Agents, Industrial Chemicals

Hawkins, Inc. is a specialty chemical company that formulates, blends, and distributes dechlorination chemicals across the United States. Their customer-centric approach includes technical services and customized chemical solutions for specific water treatment challenges.

Customer Focus:

  • Blending capabilities for customized formulations

  • Rigorous quality control and safety standards

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🌍 Outlook: The Future of Dechlorination Is Smarter and More Sustainable

The dechlorination chemicals market is undergoing a significant transformation. While traditional sulfite-based chemicals continue to dominate, the industry is advancing toward more efficient application methods, reduced chemical consumption, and integrated treatment systems.

📈 Key Trends Shaping the Market:

  • Increasing regulatory pressure on chlorine discharge limits worldwide

  • Growing adoption of automated dosing and monitoring systems

  • Rising demand for chloramine removal technologies in municipal water systems

  • Expansion of membrane-based water treatment driving need for chlorine protection

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Dechlorination Chemicals Market – View in Detailed Research Report

The companies profiled above are not only supplying essential chemicals—they’re enabling environmental compliance and protecting critical water infrastructure across the globe.