The Global Benzisothiazolinone Market was valued at USD 26.00 Million in 2025 and is projected to reach USD 35.82 Million by 2034, growing at a Compound Annual Growth Rate (CAGR) of 4.5% during the forecast period (2024–2034). This growth is driven by robust demand from the paints and coatings industry, expanding applications in home care products, and the critical need for effective microbial control in water-based systems worldwide.

As industries increasingly shift towards water-based formulations to meet environmental regulations, the demand for high-performance preservatives like Benzisothiazolinone (BIT) is surging. The market is characterized by innovation in high-purity grades and synergistic blends to meet stringent safety standards. In this blog, we profile the Top 10 Companies in the Benzisothiazolinone Industry—a mix of established chemical giants and specialized manufacturers shaping the future of industrial preservation.

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🔟 1. Arxada AG

Headquarters: Basel, Switzerland
Key Offering: High-purity BIT, Customized Biocide Blends, Technical Support

Arxada is a global leader in specialty chemicals, with a strong foothold in the preservation sector. Following its formation from the merger of Lonza’s materials protection business and Troy Corporation, Arxada possesses a comprehensive portfolio of biocides, including advanced Benzisothiazolinone solutions. The company serves a diverse range of industries, from paints and coatings to personal care, with a focus on innovative and sustainable preservation technologies.

Innovation and Sustainability Initiatives:

• Development of next-generation, environmentally compatible BIT formulations

• Investment in R&D for enhanced efficacy and reduced environmental impact

• Strategic focus on meeting global regulatory standards like the EU BPR

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Benzisothiazolinone Market – View in Detailed Research Report

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9️⃣ 2. Lanxess AG

Headquarters: Cologne, Germany
Key Offering: Preventol BIT Series, Aqueous BIT Solutions, Technical Grade BIT

Lanxess is a powerhouse in specialty chemicals, renowned for its high-quality biocides under the Preventol brand. The company offers a range of Benzisothiazolinone products known for their reliability and effectiveness in preventing microbial degradation. With a strong global presence and significant production capacity, Lanxess is a key supplier to the construction, adhesive, and cleaning product industries.

Innovation and Sustainability Initiatives:

• Continuous improvement of BIT manufacturing processes for higher purity and yield

• Commitment to sustainable chemistry and responsible product stewardship

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8️⃣ 3. Troy Corporation

Headquarters: Florham Park, New Jersey, USA
Key Offering: Troysan BIT, Polyphase BIT, Multi-functional Preservative Systems

Troy Corporation, now part of Arxada, has a long-standing reputation as a leading provider of antimicrobial solutions. The company’s expertise in formulating BIT-based preservatives for challenging applications makes it a preferred partner for manufacturers requiring robust in-can protection. Troy’s products are critical for extending the shelf life of water-based paints, industrial fluids, and metalworking coolants.

Innovation and Sustainability Initiatives:

• Pioneering synergistic preservative systems that leverage BIT’s strengths

• Focus on developing solutions that help customers comply with VOC regulations

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7️⃣ 4. IRO Group Inc.

Headquarters: Shanghai, China
Key Offering: BIT 98%, BIT 99%, BIT 20% Aqueous Solution

IRO Group is a major Chinese manufacturer of fine chemicals and intermediates, including Benzisothiazolinone. The company leverages China’s robust chemical production infrastructure to supply both domestic and international markets. IRO Group is known for its cost-effective production and ability to scale, making it a significant player in the global BIT supply chain, particularly for the Asian market.

Innovation and Sustainability Initiatives:

• Expansion of production capacity to meet growing global demand

• Investment in quality control systems to ensure product consistency

Download FREE Sample Report:
Benzisothiazolinone Market – View in Detailed Research Report

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6️⃣ 5. Clariant AG

Headquarters: Muttenz, Switzerland
Key Offering: Biocide Additives, BIT-based Preservation Packages

Clariant is a focused and innovative specialty chemical company with a strong portfolio of additives for various industries. While offering a range of preservation solutions, its expertise in providing tailored additive packages that include effective biocides like BIT is highly valued. Clariant serves customers in plastics, coatings, and personal care with an emphasis on sustainability and performance.

Innovation and Sustainability Initiatives:

• Development of ECO-friendly additive solutions incorporating high-efficacy preservatives

• Integration of BIT into holistic sustainability-focused product offerings

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5️⃣ 6. Dalian Tianwei Chemical Co., Ltd.

Headquarters: Dalian, China
Key Offering: Technical Grade BIT, BIT 20% Liquid

Dalian Tianwei Chemical is a specialized manufacturer of chemical intermediates and biocides, with a significant focus on isothiazolinone chemistry. The company is a key producer of Benzisothiazolinone in the Asia-Pacific region, supplying local paint, coating, and detergent manufacturers. Its strategic location in a major chemical industrial zone provides advantages in logistics and raw material sourcing.

Innovation and Sustainability Initiatives:

• Optimization of production for competitive pricing in regional markets

• Adherence to international quality standards to expand global footprint

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4️⃣ 7. Shanghai Richchemical Co., Ltd.

Headquarters: Shanghai, China
Key Offering: BIT Powder, BIT Solution, Custom Blends

Shanghai Richchemical is a prominent supplier of fine chemicals and pharmaceutical intermediates, including preservatives. The company has established itself as a reliable source of Benzisothiazolinone for various industrial applications. Its strong distribution network across China and into international markets makes it an important link in the global supply chain for BIT.

Innovation and Sustainability Initiatives:

• Focus on supplying consistent quality BIT to meet diverse application needs

• Building partnerships with formulators in emerging markets

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3️⃣ 8. BASF SE

Headquarters: Ludwigshafen, Germany
Key Offering: Broad Biocide Portfolio, including BIT-containing systems

As one of the world’s largest chemical producers, BASF offers a wide range of products for industrial preservation. While its portfolio is diverse, the company’s deep expertise in chemistry and formulation allows it to provide effective solutions that may incorporate Benzisothiazolinone where appropriate. BASF’s global scale and technical support capabilities make it a significant influencer in the biocides market.

Innovation and Sustainability Initiatives:

• Pursuit of sustainable biocidal solutions through advanced R&D

• Commitment to product safety and regulatory compliance worldwide

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2️⃣ 9. Thor Group Ltd.

Headquarters: Manchester, United Kingdom
Key Offering: BIT-based Preservatives for Paints, Acticide BIT

Thor Group specializes in biocides and antimicrobial additives, with a strong presence in the European market. The company’s Acticide range includes BIT-based products designed for effective preservation in water-based systems. Thor’s focus on the paints, coatings, and construction industries aligns perfectly with the primary applications for Benzisothiazolinone.

Innovation and Sustainability Initiatives:

• Development of tailored preservative solutions for specific customer challenges

• Active engagement with regulatory bodies to ensure compliance

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1️⃣ 10. Dow Chemical Company

Headquarters: Midland, Michigan, USA
Key Offering: Specialty Biocides, Integrated Preservation Solutions

Dow is a global materials science leader with a significant presence in industrial biotechnology and specialty chemicals. The company’s extensive research capabilities and formulation expertise allow it to offer advanced preservation systems. While not a primary BIT producer, Dow’s influence in downstream markets and its ability to provide comprehensive solutions that may include BIT solidify its position in the competitive landscape.

Innovation and Sustainability Initiatives:

• Investment in sustainable chemistry and green product innovation

• Development of integrated solutions that optimize preservative efficacy and safety

Get Full Report Here:
Benzisothiazolinone Market – View in Detailed Research Report

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🌍 Outlook: The Future of Benzisothiazolinone Is Smarter and Safer

The Benzisothiazolinone market is navigating a period of strategic evolution. While demand for effective preservation continues to grow, the industry is investing heavily in safer formulations, regulatory compliance, and high-purity product development to meet the dual challenges of performance and safety.

📈 Key Trends Shaping the Market:

• Rising demand for high-purity BIT (99%) in sensitive applications

• Increased regulatory scrutiny and harmonization of biocide regulations globally

• Growth in synergistic blends that enhance efficacy while reducing concentration levels

• Expansion in emerging markets driven by industrialization and urbanization

Get Full Report Here:
Benzisothiazolinone Market – View in Detailed Research Report

The companies listed above are not only supplying essential preservation—they’re driving the innovation and safety standards that will define the future of industrial biocides.