The Global Fibreglass Market was valued at USD 12.5 Billion in 2024 and is projected to reach USD 22.1 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 6.7% during the forecast period (2025–2032). This growth is being driven by surging construction and infrastructure development, rising demand from the wind energy sector, and the accelerating adoption of lightweight composite materials in the automotive and aerospace industries.

As global industries prioritize sustainability, energy efficiency, and material performance, the spotlight is on the key fibreglass manufacturers who are driving innovation in composite technologies and insulation solutions. In this blog, we profile the Top 10 Companies in the Fibreglass Industry—a mix of established global giants and innovative specialists shaping the future of advanced materials.

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🔟 1. Owens Corning

Headquarters: Toledo, Ohio, USA
Key Offering: Fiberglas™ Insulation, Composites, Roofing Materials

Owens Corning is a global leader in fiberglass and composite materials, serving the building materials and composites markets. The company operates through three segments: Insulation, Composites, and Roofing. Its comprehensive product portfolio includes glass fiber reinforcements for thermoset and thermoplastic applications, alongside a wide range of insulating materials for residential, commercial, and industrial use.

Sustainability Initiatives:

• Targeting 100% of product revenue from products that provide sustainability benefits by 2030

• Committed to achieving carbon neutrality in its operations by 2050

• Investing in circular economy solutions, including glass cullet recycling programs

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9️⃣ 2. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: Glass Wool Insulation, Composite Reinforcements, High-Performance Fabrics

Saint-Gobain is a French multinational corporation and a powerhouse in the building materials and high-performance materials sectors. Its fibreglass division produces a vast array of products, including insulation materials under the ISOVER brand and reinforcement solutions for composites. The company’s global presence and extensive R&D capabilities solidify its position as a key innovator.

Sustainability Initiatives:

• Achieved a 20% reduction in carbon emissions since 2010

• Aims to achieve net-zero carbon emissions by 2050

• Developing low-carbon and bio-sourced insulation products

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8️⃣ 3. China Jushi Co., Ltd.

Headquarters: Tongxiang, Zhejiang, China
Key Offering: Glass Fibers, Roving, Chopped Strand Mats, Fabrics

China Jushi is one of the world’s largest manufacturers of fiberglass products, boasting immense production capacity and a dominant position in the Asian market. The company produces a full range of fiberglass reinforcements used in construction, transportation, wind energy, and electronics, leveraging its significant economies of scale to compete globally.

Sustainability Initiatives:

• Focus on energy efficiency improvements in its large-scale production facilities

• Expanding production capacity with newer, more efficient manufacturing lines

• Investing in technologies to reduce water consumption and waste generation

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7️⃣ 4. Nippon Electric Glass Co., Ltd. (NEG)

Headquarters: Otsu, Shiga, Japan
Key Offering: E-Glass and Specialty Glass Fibers, Glass Substrates

Nippon Electric Glass is a leading Japanese manufacturer specializing in glass and glass-related products. While known for glass substrates for displays, its fibreglass division is a major supplier of high-quality E-glass fibers and advanced specialty glass compositions for demanding applications in electronics, automotive, and telecommunications.

Sustainability Initiatives:

• Developing ultra-thin glass fibers for lightweight, high-performance composites

• Commitment to reducing environmental impact through the NEG EcoVision 2030 plan

• R&D focused on recycling glass waste from production processes

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6️⃣ 5. PPG Industries, Inc.

Headquarters: Pittsburgh, Pennsylvania, USA
Key Offering: Fiberglass Reinforcements, Chopped Strands, Continuous Roving

PPG is a global supplier of paints, coatings, and specialty materials, with a significant presence in the fiberglass reinforcements market. Its fiberglass products are critical for strengthening composite materials used in transportation, infrastructure, and consumer goods, combining PPG’s material science expertise with global supply chain strength.

Sustainability Initiatives:

• Committed to 2030 sustainability goals including reduced GHG emissions and waste

• Developing sustainable solutions for lightweighting in electric vehicles

• Focus on water conservation and sustainable manufacturing practices

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5️⃣ 6. Johns Manville Corp.

Headquarters: Denver, Colorado, USA
Key Offering: Fiberglass Insulation, Mechanical Insulation, Reinforcements

A Berkshire Hathaway company, Johns Manville is a leading manufacturer of insulated building materials and engineered products. The company produces a comprehensive range of fiberglass insulation for residential, commercial, and industrial applications, alongside specialty glass fibers for filtration and reinforcement, known for its quality and technical expertise.

Sustainability Initiatives:

• Strong commitment to product stewardship and sustainable building practices

• Offers products with high recycled content

• Focused on improving energy efficiency across its manufacturing footprint

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4️⃣ 7. Taishan Fiberglass Inc.

Headquarters: Tai’an, Shandong, China
Key Offering: Roving, Chopped Strands, Woven Roving, Mats

As a subsidiary of China National Building Material Group (CNBM), Taishan Fiberglass is one of the major fibreglass producers in China and globally. The company specializes in the production of fiberglass reinforcements, offering a wide product portfolio that caters to the construction, automotive, and wind energy markets with a strong focus on cost-competitive manufacturing.

Sustainability Initiatives:

• Investments in upgrading production technology to enhance energy efficiency

• Expansion strategies aligned with domestic and international green development policies

• Focus on optimizing raw material usage and reducing production waste

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3️⃣ 8. Knauf Insulation

Headquarters: Iphofen, Germany
Key Offering: Glass Mineral Wool Insulation, Technical Insulation

Knauf Insulation is a globally recognized leader in insulation products, with a strong focus on glass mineral wool solutions for buildings and industrial applications. The company is renowned for its ECOBATT and Earthwool products, which emphasize sustainability, ease of installation, and superior thermal and acoustic performance.

Sustainability Initiatives:

• Industry leader in using recycled glass (cullet) as a primary raw material

• Pioneered formaldehyde-free bio-based binders (ECOSE® Technology)

• Committed to achieving carbon neutrality across its operations

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2️⃣ 9. Sisecam Group

Headquarters: Istanbul, Turkey
Key Offering: Glass Fibers, Reinforcement Materials, Chemical Products

Sisecam is a major international industrial group with a significant presence in the glass and chemicals sectors. Its fibreglass operations produce a variety of reinforcement materials used in composites, benefiting from Sisecam’s vertical integration and strong regional presence in Europe, Asia, and Africa.

Sustainability Initiatives:

• Integrated sustainability approach across its glass and chemicals value chain

• Investments in R&D for eco-friendly production processes

• Focus on reducing the carbon footprint of its manufacturing activities

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1️⃣ 10. Chongqing Polycomp International Corp. (CPIC)

Headquarters: Chongqing, China
Key Offering: Fiberglass Roving, Chopped Strands, Fabrics, Specialty Fibers

CPIC is a leading Chinese fiberglass manufacturer with a growing international footprint. The company produces a diversified range of fiberglass products, including standard E-glass and high-performance fibers for applications in wind energy, infrastructure, electronics, and aerospace. CPIC is known for its rapid capacity expansion and technological advancement.

Sustainability Initiatives:

• Active expansion of production capacity for wind energy applications

• Focus on developing advanced fibers for lightweight composite solutions

• Implementation of energy-saving technologies in new production lines

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🌍 Outlook: The Future of Fibreglass is Sustainable and High-Performance

The fibreglass market is undergoing a significant transformation. While traditional applications in construction insulation continue to drive volume, the industry is increasingly focused on sustainable manufacturing, advanced composites for renewable energy, and lightweighting solutions for modern transportation.

📈 Key Trends Shaping the Market:

• Accelerated demand for fibreglass in wind turbine blade manufacturing

• Stringent building energy codes driving innovation in high-performance insulation

• Automotive and aerospace industries adopting fibreglass composites for weight reduction

• Increased R&D investment in recyclable and bio-based fibreglass composites

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

The companies listed above are not only supplying essential materials for global infrastructure and industry—they’re pioneering the next generation of sustainable, high-performance composite solutions.