Top 10 Companies in the Fiberglass Insulation Panels Industry (2026): Market Leaders Powering Sustainable Construction

In Business Insights
February 25, 2026


The Global Fiberglass Insulation Panels Market was valued at USD 10.8 Billion in 2023 and is projected to reach USD 16.2 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.9% during the forecast period (2024–2030). This robust growth is fueled by escalating global demand for energy-efficient building solutions, stringent government regulations on building insulation, and the increasing adoption of green building certifications like LEED and BREEAM.

As the construction industry pivots toward sustainable and energy-conserving practices, the role of high-performance insulation becomes paramount. Fiberglass insulation panels, known for their excellent thermal and acoustic properties, are at the forefront of this transformation. In this blog, we profile the Top 10 Companies in the Fiberglass Insulation Panels Industry—innovators and market leaders shaping the built environment for a more efficient future.


🔟 1. Owens Corning

Headquarters: Toledo, Ohio, USA
Key Offering: PINK® FIBERGLAS™ Insulation, EcoTouch® Technology

Owens Corning is a global leader in building materials and fiberglass composites. Their insulation division is renowned for its PINK® fiberglass batts, rolls, and panels, which are widely used in residential, commercial, and industrial applications. The company’s EcoTouch® technology emphasizes sustainability with bio-based materials and reduced embodied energy.

Sustainability Initiatives:

  • EcoTouch® products made with recycled content and bio-based binder

  • Committed to achieving carbon neutrality by 2050

  • Extensive product recycling programs for construction waste

Download FREE Sample Report: Fiberglass Insulation Panels Market – View in Detailed Research Report


9️⃣ 2. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: ISOVER Glass Wool Insulation, CERTAINTEED Fiberglass Products

Saint-Gobain, through its subsidiary CERTAINTEED in North America and the ISOVER brand globally, is a powerhouse in the insulation market. The company produces a comprehensive range of fiberglass insulation panels and boards designed for thermal and acoustic performance in walls, roofs, and floors.

Sustainability Initiatives:

  • ISOVER’s “Airium” bio-based foam insulation innovation

  • Goal to achieve carbon neutrality by 2050

  • High recycling rates in manufacturing processes


8️⃣ 3. Knauf Insulation

Headquarters: Shelbyville, Indiana, USA (Knauf Insulation GmbH HQ: Iphofen, Germany)
Key Offering: ECOSE® Technology-based fiberglass insulation, Knauf Cavity Wall Boards

Knauf Insulation is a family-owned company known for its innovative ECOSE® Technology, a bio-based binder that reduces embodied energy and creates a safer, formaldehyde-free product. Their fiberglass panels are favored for their ease of handling and superior performance.

Sustainability Initiatives:

  • Pioneering ECOSE® Technology using bio-based materials

  • Products contain up to 80% recycled glass

  • Focus on circular economy principles in manufacturing


7️⃣ 4. Johns Manville

Headquarters: Denver, Colorado, USA
Key Offering: JM Formaldehyde-free™ fiberglass insulation, Spider® blowing wool, Microlite® HD board

A Berkshire Hathaway company, Johns Manville manufactures a broad portfolio of insulation products. Their fiberglass insulation panels are designed for commercial and industrial applications, offering high R-values and fire resistance. The company is a leader in formaldehyde-free technology.

Sustainability Initiatives:

  • Full range of Formaldehyde-free™ fiberglass insulation

  • Significant use of recycled glass cullet in production

  • Investment in energy-efficient manufacturing facilities

Download FREE Sample Report: Fiberglass Insulation Panels Market – View in Detailed Research Report


6️⃣ 5. Rockwool International A/S

Headquarters: Hedehusene, Denmark
Key Offering: ROCKWOOL stone wool insulation panels (Note: While primarily stone wool, they are a key player in the broader insulation panel market and produce some fiberglass products)

Rockwool is a world leader in stone wool insulation, a segment adjacent to and often compared with fiberglass. Their products offer exceptional fire resilience and acoustic performance. The company’s expertise in high-performance insulation makes it a significant influencer in the market.

Sustainability Initiatives:

  • Products are recyclable and made from abundant volcanic rock

  • Contributes to significant CO2 savings over a building’s lifecycle

  • Ambitious sustainability targets outlined in annual reports


5️⃣ 6. URSA Insulation

Headquarters: Madrid, Spain
Key Offering: URSA Glass Wool Insulation Panels, TERRA Mineral Wool, PUREONE Glass Wool

URSA, part of the Xella Group, is a major European manufacturer of glass wool and mineral wool insulation. Their fiberglass panels are engineered for thermal and acoustic applications across various building types, with a strong focus on sustainability and product innovation.

Sustainability Initiatives:

  • High-recycled content in glass wool products

  • Development of bio-soluble fibers for enhanced safety

  • Commitment to reducing the carbon footprint of operations


4️⃣ 7. Kingspan Group

Headquarters: Kingscourt, Ireland
Key Offering: Kooltherm® phenolic insulation boards, insulated panels (Note: Kingspan is a leader in high-performance rigid boards; their portfolio includes complementary products to fiberglass)

Kingspan is a global leader in high-performance insulation and building envelope solutions. While renowned for its rigid foam boards, the company’s influence and market position in the broader insulation panel industry are substantial, driving innovation in energy efficiency.

Sustainability Initiatives:

  • Planet Passionate sustainability program with ambitious 2030 targets

  • Net-zero energy manufacturing

  • Products designed for a circular economy


3️⃣ 8. Guardian Glass (Guardian Industries)

Headquarters: Auburn Hills, Michigan, USA
Key Offering: Guardian Fiberglass Insulation

Guardian Industries, a Koch Industries company, is a major global manufacturer of glass, and its fiberglass insulation division is a significant player in the market. They produce a range of fiberglass insulation products for residential, commercial, and OEM applications.

Sustainability Initiatives:

  • Utilization of recycled glass from manufacturing processes

  • Focus on energy efficiency in building applications

  • Continuous improvement in manufacturing environmental performance


2️⃣ 9. CertainTeed (a Saint-Gobain North America subsidiary)

Headquarters: Malvern, Pennsylvania, USA
Key Offering: CertainTeed Insulation – Fiberglass Batts, Rolls, and Boards, Sustainable Insulation® products

As a standalone brand under Saint-Gobain, CertainTeed is a leading North American manufacturer of building materials. Their fiberglass insulation line is a market staple, known for its quality and reliability. They offer specialized products like sound-proofing and formaldehyde-free options.

Sustainability Initiatives:

  • Sustainable Insulation® products with high recycled content

  • Part of Saint-Gobain’s global net-zero carbon ambition

  • Product transparency through EPDs (Environmental Product Declarations)


1️⃣ 10. Atlas Roofing Corporation

Headquarters: Atlanta, Georgia, USA
Key Offering: Atlas Fiberglass Batt Insulation, Polyiso Rigid Board Insulation

A subsidiary of Atlas Roofing Corporation, this company is a significant supplier of polyiso and fiberglass insulation products in North America. Their products are designed for a wide range of applications, from attic floors to wall cavities, emphasizing energy savings and building code compliance.

Sustainability Initiatives:

  • Manufacturing processes focused on waste reduction

  • Products that contribute to energy conservation in buildings

  • Membership in industry groups promoting sustainable building

Download FREE Sample Report: Fiberglass Insulation Panels Market – View in Detailed Research Report


🏗️ Outlook: The Future of Fiberglass Insulation Panels Is Efficient and Eco-Conscious

The fiberglass insulation panels market is experiencing a paradigm shift driven by stricter energy codes, climate change concerns, and a growing emphasis on occupant health and comfort. While traditional products continue to dominate, the industry is rapidly innovating toward higher R-values, formaldehyde-free compositions, and circular manufacturing principles.

📈 Key Trends Shaping the Market:

  • Rising demand for retrofitting existing building stock for energy efficiency

  • Integration of smart technologies with insulation systems for building performance monitoring

  • Development of thinner, higher-performance panels to maximize interior space

  • Increased use of post-consumer and post-industrial recycled glass

Get Full Report Here: Fiberglass Insulation Panels Market – View in Detailed Research Report

The companies listed above are not only supplying essential building materials—they are enabling a fundamental shift toward sustainable, resilient, and energy-efficient construction worldwide.