The Global Eco-Friendly Insulation Market was valued at USD 42.5 Billion in 2024 and is projected to reach USD 65.8 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 7.2% during the forecast period (2024–2030). This robust growth is fueled by stringent global building energy codes, rising consumer demand for green buildings, and substantial government incentives promoting energy efficiency and carbon footprint reduction in residential and commercial construction.

As the construction industry accelerates its transition toward net-zero carbon emissions, the focus has intensified on material science innovators developing sustainable insulation solutions. In this blog, we profile the Top 10 Companies in the Eco-Friendly Insulation Industry—a dynamic mix of established materials giants and specialized green-tech firms shaping the future of building envelopes.

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🔟 1. Kingspan Group

Headquarters: Kingscourt, Ireland
Key Offering: High-performance insulation boards, panels, and systems

Kingspan Group is a global leader in high-performance insulation and building envelope solutions. The company’s Planet Passionate sustainability strategy is deeply integrated into its product development, focusing on circular economy principles and drastically reducing the embodied carbon of its insulation products.

Sustainability Initiatives:

• Aiming for net-zero carbon manufacturing by 2030

• Investing in bio-based and recycled content for insulation cores

• Targeting 1 billion liters of water recycled and a 50% reduction in CO2e intensity from primary supply chain partners

Download FREE Sample Report: Eco-Friendly Insulation Market – View in Detailed Research Report

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9️⃣ 2. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: Glass wool, rock wool, and sustainable insulation systems

Saint-Gobain, a historic leader in building materials, has heavily invested in its sustainable insulation portfolio. Its products, like glass wool made with up to 80% recycled glass, are central to its goal of achieving carbon neutrality. The company’s multi-material approach provides comprehensive solutions for various climate zones and building types.

Sustainability Initiatives:

• Commitment to reach net-zero carbon by 2050

• Development of the “INSULATION MADE OF biosourced AND recycled MATERIALS” range

• Active participation in circular construction projects across Europe and North America

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8️⃣ 3. Rockwool International

Headquarters: Hedehusene, Denmark
Key Offering: Stone wool insulation products

Rockwool International specializes in stone wool insulation, a material known for its fire resistance, acoustic properties, and durability. Made predominantly from basaltic rock and recycled content, their products offer a long-lasting, non-combustible insulation solution that contributes to both energy efficiency and building safety.

Sustainability Initiatives:

• Ambitious 2030 goals to positively impact 500 million people and become a circular and carbon-neutral company

• Utilization of significant recycled content in its manufacturing process

• Focus on product longevity and end-of-life recyclability

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7️⃣ 4. Knauf Insulation

Headquarters: Shelbyville, Indiana, USA (EMEA Headquarters: Visé, Belgium)
Key Offering: Glass mineral wool, rock mineral wool, EPS insulation

Knauf Insulation is a family-owned company with a strong environmental ethos. Its ECOSE® Technology is a bio-based binder that replaces traditional formaldehyde-based binders, resulting in a natural brown color and reduced embodied energy. This innovation is a cornerstone of their eco-friendly product line.

Sustainability Initiatives:

• Pioneer of ECOSE® Technology, a bio-based binder with low embodied energy

• Commitment to sending zero waste to landfill from its manufacturing sites

• Products contain high levels of recycled materials, primarily glass cullet

Download FREE Sample Report: Eco-Friendly Insulation Market – View in Detailed Research Report

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6️⃣ 5. Johns Manville (a Berkshire Hathaway company)

Headquarters: Denver, Colorado, USA
Key Offering: Fiberglass insulation, foam boards, and building membranes

Johns Manville is a leading manufacturer of insulation, roofing, and building products. The company emphasizes sustainable manufacturing practices and has developed a range of fiberglass insulation products with high recycled content. Their commitment to product stewardship extends throughout the product lifecycle.

Sustainability Initiatives:

• Significant investment in air quality control and emission reduction technologies

• Development of formaldehyde-free fiberglass insulation products

• Active pursuit of third-party environmental certifications for its products and facilities

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5️⃣ 6. DuPont

Headquarters: Wilmington, Delaware, USA
Key Offering: Styrofoam™ brand extruded polystyrene (XPS), high-performance foams

DuPont offers a range of insulation solutions, including its well-known Styrofoam™ brand. The company focuses on innovation to improve the thermal performance and environmental profile of its foam products, with ongoing research into next-generation blowing agents and recycled content integration.

Sustainability Initiatives:

• Corporate sustainability goals aligned with the UN Sustainable Development Goals

• Research into low-global-warming-potential (GWP) blowing agents for foam insulation

• Initiatives to enhance the recyclability and circularity of its insulation products

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4️⃣ 7. BASF

Headquarters: Ludwigshafen, Germany
Key Offering: Neopor® (graphite-enhanced EPS), Elastopor® foam systems

BASF, a global chemical giant, produces innovative foam insulation materials like Neopor®, which contains graphite particles to significantly improve thermal efficiency with less material. Their solutions are tailored for high-performance building standards like Passive House, contributing to drastic reductions in heating and cooling energy demand.

Sustainability Initiatives:

• Committed to achieving net-zero CO2 emissions by 2050

• Development of insulation materials that enable “nearly energy-autonomous” buildings

• Focus on material efficiency, allowing for thinner insulation layers with superior performance

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3️⃣ 8. URSA Insulation (part of the Xella Group)

Headquarters: Madrid, Spain
Key Offering: Glass mineral wool, PIR panels

URSA is a major European insulation manufacturer with a strong focus on sustainability. Its products are known for high recycled content and are designed for easy installation and excellent thermal and acoustic performance. The company is actively involved in advancing circular economy models within the construction sector.

Sustainability Initiatives:

• Innovation in producing glass wool with up to 85% recycled glass

• Implementation of energy-efficient manufacturing processes

• Product take-back and recycling pilot programs to close the material loop

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2️⃣ 9. GreenFiber (a CABKA company)

Headquarters: Charlotte, North Carolina, USA
Key Offering: Blown-in cellulose insulation (made from recycled paper)

GreenFiber is a leading producer of cellulose insulation, a classic eco-friendly material made primarily from recycled newspaper. This blown-in or spray-applied insulation is particularly effective for retrofitting existing buildings and achieving high levels of thermal performance and air sealing in walls and attics.

Sustainability Initiatives:

• Diverts millions of tons of paper from landfills annually

• Products are made from up to 85% recycled content

• Naturally non-toxic and treated with safe fire retardants like borates

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1️⃣ 10. HempFlax / Hempitecture (Representing the Natural Fiber Segment)

Headquarters: HempFlax (Netherlands), Hempitecture (USA)
Key Offering: Hemp wool, batts, and blown-in insulation

This spot is held by pioneering companies in the natural fiber insulation space. Hemp-based insulation is a rapidly growing segment due to its carbon-negative lifecycle, excellent moisture buffering capabilities, and renewability. Companies like HempFlax in Europe and Hempitecture in North America are commercializing these bio-based solutions for a new era of building.

Sustainability Initiatives:

• Utilizes rapidly renewable agricultural products (hemp) that sequester carbon during growth

• Creates healthy indoor air quality with vapor-permeable materials

• Fully biodegradable and compostable at end of life

Get Full Report Here: Eco-Friendly Insulation Market – View in Detailed Research Report

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🌍 Outlook: The Future of Insulation Is Natural, Smart, and Circular

The eco-friendly insulation market is undergoing a profound transformation. While established materials like fiberglass and mineral wool dominate volume, the industry is rapidly innovating with bio-based materials, advanced recycling technologies, and smart insulation systems that adapt to environmental conditions.

📈 Key Trends Shaping the Market:

• Explosive growth in hemp, cork, mycelium, and other bio-based insulation materials

• Stricter building codes (e.g., Passive House, Net-Zero Ready) mandating higher R-values and lower embodied carbon

• Manufacturers increasing the use of post-consumer and post-industrial recycled content

• Development of “smart” insulation with phase-change materials (PCMs) for dynamic thermal management

Get Full Report Here: Eco-Friendly Insulation Market – View in Detailed Research Report

The companies leading this sector are not just selling insulation—they are providing the critical components for a low-carbon, energy-resilient, and healthier built environment.