The Global AGM Battery Separator Market was valued at USD 1.25 Billion in 2024 and is projected to reach USD 2.18 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 6.7% during the forecast period (2024–2032). This growth is primarily driven by the exponential rise in automotive start-stop systems, the global push for renewable energy storage, and the increasing demand for reliable backup power solutions across telecommunications and industrial sectors.

As the world accelerates its transition toward efficient and maintenance-free energy storage, the critical role of AGM (Absorbent Glass Mat) battery separators comes into sharp focus. These specialized components are the unsung heroes within valve-regulated lead-acid batteries, ensuring safety, longevity, and peak performance. In this blog, we profile the Top 10 Companies in the AGM Battery Separator Industry—a mix of established material science giants and innovative specialists shaping the future of battery technology.

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🔟 1. Hollingsworth & Vose Company

Headquarters: East Walpole, Massachusetts, USA
Key Offering: High-performance glass microfiber separators, advanced synthetic blends

Hollingsworth & Vose (H&V) is a globally recognized leader in advanced filtration and battery separator materials. With a rich history of innovation, the company produces a comprehensive portfolio of AGM separators known for their exceptional uniformity, porosity, and electrolyte retention. Their materials are critical in applications ranging from automotive batteries to large-scale energy storage systems, where reliability is paramount.

Innovation Initiatives:

• Development of ultra-thin, high-porosity separators for increased energy density

• Strategic R&D partnerships with leading global battery manufacturers

• Commitment to sustainable manufacturing processes and material recycling

Download FREE Sample Report: AGM Battery Separator Market – View in Detailed Research Report

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9️⃣ 2. Nippon Sheet Glass Co., Ltd. (NSG)

Headquarters: Tokyo, Japan
Key Offering: 100% glass microfiber separators, specialty glass mats

As a major global glass manufacturer, Nippon Sheet Glass brings extensive material science expertise to the AGM separator market. The company leverages its proprietary glass composition and fiberization technologies to produce separators with superior acid wettability and mechanical strength. NSG’s products are widely used by automotive OEMs in Asia and Europe, particularly for start-stop and enhanced flooded battery (EFB) applications.

Innovation Initiatives:

• Continuous improvement in fiber diameter consistency for optimal performance

• Expansion of production capacity to meet growing Asian market demand

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8️⃣ 3. B&F Technology Ltd.

Headquarters: Runcorn, United Kingdom
Key Offering: Custom-engineered AGM separators, hybrid fiber solutions

B&F Technology specializes in the development and manufacture of high-performance battery separator materials. The company is known for its technical expertise and ability to produce custom separator solutions tailored to specific customer requirements. Their products serve a diverse range of applications, including automotive, telecommunications, and renewable energy storage.

Innovation Initiatives:

• Focus on hybrid separator technologies combining glass and synthetic fibers

• Joint ventures in key growth markets to localize production

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7️⃣ 4. Microporous LLC

Headquarters: Pulaski, Tennessee, USA
Key Offering: Microporous membranes, AGM separators for deep-cycle applications

Microporous LLC is a leading manufacturer of battery separator materials, with a strong focus on the North American market. The company’s AGM separators are renowned for their durability and performance in deep-cycle applications, making them ideal for renewable energy storage and motive power uses such as forklifts and golf carts.

Innovation Initiatives:

• Development of separators with enhanced puncture resistance for extended battery life

• Investment in advanced manufacturing technologies to improve product consistency

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6️⃣ 5. Zaisheng Technology

Headquarters: Shanghai, China
Key Offering: Cost-effective AGM separators, high-volume production

Zaisheng Technology is a major player in the Asian AGM separator market, benefiting from China’s position as the world’s largest battery manufacturer. The company excels in high-volume production of reliable separators that meet the demanding requirements of the automotive and industrial battery sectors. Their competitive pricing and scalable manufacturing make them a key supplier for cost-sensitive applications.

Innovation Initiatives:

• Rapid scaling of production capacity to serve growing domestic and export markets

• Development of new separator grades for extreme temperature performance

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5️⃣ 6. Bernard Dumas

Headquarters: Lyon, France
Key Offering: Specialty AGM separators, European market focus

Bernard Dumas is a well-established European manufacturer of battery separator materials, with a strong presence in the automotive and industrial sectors. The company’s expertise lies in producing high-quality separators that meet the stringent requirements of European battery manufacturers, particularly for start-stop and premium automotive applications.

Innovation Initiatives:

• Focus on sustainability through eco-friendly manufacturing processes

• Development of separators optimized for high-rate discharge applications

Download FREE Sample Report: AGM Battery Separator Market – View in Detailed Research Report

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4️⃣ 7. Globe Composite Solutions

Headquarters: Stoughton, Massachusetts, USA
Key Offering: Engineered composite materials, custom AGM solutions

Globe Composite Solutions is a manufacturer of engineered composite materials, including specialized AGM battery separators. The company’s strength lies in its ability to develop custom solutions for specific performance requirements, serving niche markets and specialized applications where off-the-shelf products may not suffice.

Innovation Initiatives:

• Collaboration with battery manufacturers to solve specific design challenges

• Development of separators with unique performance characteristics for specialty batteries

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3️⃣ 8. Johns Manville

Headquarters: Denver, Colorado, USA
Key Offering: Industrial insulation materials, glass fiber-based separators

As a Berkshire Hathaway company, Johns Manville brings substantial resources and manufacturing expertise to the AGM separator market. The company’s background in glass fiber production provides a strong foundation for manufacturing high-quality separators, particularly for industrial and heavy-duty applications where reliability is critical.

Innovation Initiatives:

• Leveraging parent company resources for R&D and capacity expansion

• Focus on separators for large-format batteries used in energy storage

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2️⃣ 9. Lydall Performance Materials

Headquarters: Manchester, Connecticut, USA
Key Offering: Technical specialty materials, advanced filtration media

Lydall Performance Materials, now part of Unifrax, specializes in high-performance specialty materials including battery separators. The company’s expertise in precision engineering and material science enables them to produce separators with tightly controlled properties for demanding applications in the automotive and energy sectors.

Innovation Initiatives:

• Integration of advanced nanofiber technologies into separator designs

• Development of multi-layer separator structures for enhanced performance

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1️⃣ 10. Daramic, LLC (a part of Polypore International, LP)

Headquarters: Charlotte, North Carolina, USA
Key Offering: Microporous polyethylene and AGM separators

Daracic is a global leader in battery separator technology, with a comprehensive product portfolio that includes high-performance AGM separators. The company’s strong technological foundation and global manufacturing footprint make it a key supplier to major battery producers worldwide, particularly in the automotive and industrial sectors.

Innovation Initiatives:

• Continuous improvement of separator properties for higher battery efficiency

• Global expansion of manufacturing capabilities to serve emerging markets

Get Full Report Here: AGM Battery Separator Market – View in Detailed Research Report

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🔋 Outlook: The Future of AGM Battery Separators Is Smarter and More Efficient

The AGM battery separator market is undergoing a significant transformation. While traditional applications continue to drive volume, the industry is investing heavily in advanced material science, manufacturing technologies, and sustainable production methods to meet the evolving demands of next-generation energy storage.

📈 Key Trends Shaping the Market:

• Rise of start-stop vehicle technology demanding higher-performance separators

• Exponential growth in renewable energy storage creating new application avenues

• Development of thinner, more efficient separators for increased energy density

• Growing emphasis on sustainability and recyclability in separator production

Get Full Report Here: AGM Battery Separator Market – View in Detailed Research Report

The companies listed above are not only supplying essential components for today’s batteries—they’re enabling the energy storage revolution that will power a more efficient and sustainable future.