Top 10 Companies in the Eco-Friendly Insulation Market (2025): Market Leaders Building a Sustainable Future

In Business Insights
December 10, 2025


The Global Eco-Friendly Insulation Market was valued at USD 30.25 Billion in 2024 and is projected to reach USD 52.18 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 9.5% during the forecast period (2024–2030). This robust growth is fueled by stringent global building energy codes, rising consumer demand for green buildings, and supportive government incentives for sustainable construction materials.

As the construction industry accelerates its journey toward net-zero emissions and circular economy principles, material innovation is paramount. In this blog, we profile the Top 10 Companies in the Eco-Friendly Insulation Industry—a diverse group of established manufacturers and specialized innovators who are redefining thermal efficiency with a lower environmental footprint.


🔟 1. Kingspan Group

Headquarters: Kingscourt, Ireland
Key Offering: Insulated panels, rigid boards, and facade systems with high recycled content

Kingspan Group is a global leader in high-performance insulation and building envelope solutions. Their Planet Passionate sustainability strategy drives innovation in product lifecycles, with a strong focus on circularity, carbon reduction, and utilizing renewable energy in manufacturing.

Sustainability Initiatives:

  • Target to achieve net-zero carbon manufacturing by 2030
  • Up to 60% recycled content in core insulation products
  • Investment in bio-based and Cradle to Cradle Certified™ materials

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


9️⃣ 2. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: Glass wool, rock wool, and cellulose insulation solutions

Saint-Gobain, through its brand ISOVER, is a powerhouse in sustainable insulation, offering a wide portfolio of products with high recycled content. The company is committed to designing products that reduce the carbon footprint of buildings throughout their entire lifecycle.

Sustainability Initiatives:

  • Ambition to achieve net-zero carbon by 2050
  • Development of innovative glass wool with up to 80% recycled glass
  • Global initiatives for eco-design and water recycling in manufacturing

8️⃣ 3. Rockwool International

Headquarters: Hedehusene, Denmark
Key Offering: Stone wool insulation for residential, commercial, and industrial applications

Rockwool International manufactures stone wool insulation from volcanic rock, a highly abundant and natural material. Their products are renowned for fire resistance, acoustic performance, and durability, contributing to long-term energy savings in buildings.

Sustainability Initiatives:

  • Commitment to a 1.5°C science-based target for carbon reduction
  • Products are fully recyclable and contain recycled content
  • Focus on enhancing the energy efficiency of existing building stock

7️⃣ 4. Knauf Insulation

Headquarters: Iphofen, Germany
Key Offering: Glass mineral wool, rock mineral wool, and EPS insulation

Knauf Insulation is a family-owned company with a strong environmental ethos. Their ECOSE® Technology is a bio-based binder that replaces traditional formaldehyde-based binders, resulting in a softer, low-dust product with reduced embodied energy.

Sustainability Initiatives:

  • Pioneering ECOSE® Technology, derived from rapidly renewable bio-based materials
  • Ambition to be a circular and carbon-neutral company
  • High recycling rates in their manufacturing processes across Europe and North America

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


6️⃣ 5. Johns Manville

Headquarters: Denver, Colorado, USA
Key Offering: Fiberglass, foam, and reflective insulation products

A Berkshire Hathaway company, Johns Manville is a leading manufacturer of premium building products. Their Formaldehyde-free™ fiberglass insulation is a key product in the eco-friendly segment, addressing indoor air quality concerns while providing excellent thermal performance.

Sustainability Initiatives:

  • Comprehensive product line with no added formaldehyde
  • Significant use of recycled glass cullet in fiberglass production
  • Corporate commitment to reducing greenhouse gas emissions and waste

5️⃣ 6. DuPont

Headquarters: Wilmington, Delaware, USA
Key Offering: Styrofoam™ brand extruded polystyrene (XPS), non halogenated flame retardants

DuPont offers high-performance insulation solutions, including Styrofoam™ XPS, which provides long-term R-value and moisture resistance. The company focuses on developing products that help builders meet stringent energy codes with reduced environmental impact.

Sustainability Initiatives:

  • Development of next-generation, low global warming potential (GWP) blowing agents
  • Commitment to sustainable innovation goals, including circular economy principles
  • Products designed for durability to minimize replacement and waste over a building’s life

4️⃣ 7. GreenFiber

Headquarters: Charlotte, North Carolina, USA
Key Offering: Cellulose insulation made from recycled paper

GreenFiber is a specialist in cellulose insulation, a prime example of a circular economy product. Their insulation is primarily made from up to 85% recycled paper, diverting significant waste from landfills and reducing the need for virgin materials.

Sustainability Initiatives:

  • COOL® cellulose insulation is made predominantly from recycled newspaper
  • Natural insect and fire resistance without the need for chemical additives
  • Focus on providing a carbon-storing insulation solution for residential attics and walls

3️⃣ 8. URSA

Headquarters: Madrid, Spain
Key Offering: Glass mineral wool and PIR (Polyisocyanurate) insulation boards

URSA, part of the Xella Group, is a major European insulation manufacturer. The company’s sustainability strategy is centered on producing materials that save vastly more energy over their lifetime than is consumed in their production, a concept known as embodied carbon payback.

Sustainability Initiatives:

  • High-performance insulation products with a significant proportion of recycled glass
  • Focus on PIR foam insulation with improved environmental profiles
  • Commitment to the European Green Deal objectives for building renovation

2️⃣ 9. BASF

Headquarters: Ludwigshafen, Germany
Key Offering: Neopor® graphite-enhanced EPS (Expanded Polystyrene)

BASF’s Neopor® is an innovative EPS insulation that contains graphite particles, reflecting radiant heat and providing superior insulating performance with less material thickness. This efficiency translates to material savings and a lower environmental footprint per unit of performance.

Sustainability Initiatives:

  • Neopor® enables slimmer wall constructions with equivalent R-values, saving resources
  • Ongoing R&D into bio-based and circular raw materials for insulation
  • Corporate climate neutrality targets driving product innovation

1️⃣ 10. Insulmax

Headquarters: Atlanta, Georgia, USA
Key Offering: Loose-fill cellulose insulation for blow-in applications

Insulmax is a key player in the cellulose insulation niche in North America. They specialize in providing blow-in insulation made from recycled paper fibers, offering an effective solution for retrofitting existing homes and improving energy efficiency.

Sustainability Initiatives:

  • Manufacturing process utilizes a high percentage of post-consumer recycled paper
  • Products contribute to significant energy savings and carbon emission reductions in buildings
  • Focus on the residential retrofit market, which is critical for overall carbon reduction goals

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


🌍 Outlook: The Future of Insulation Is High-Performance and Circular

The eco-friendly insulation market is at a pivotal moment. Driven by the urgent need to decarbonize the built environment, the industry is rapidly evolving beyond traditional materials to embrace bio-based solutions, advanced recycling, and carbon-storing products.

📈 Key Trends Shaping the Market:

  • Accelerated adoption of building codes mandating higher R-values and lower embodied carbon
  • Rising consumer and corporate demand for healthier indoor environments and sustainable materials
  • Innovation in bio-based insulation materials like hemp, mycelium, and wool
  • Growth in the building renovation sector as a major driver for retrofit insulation solutions

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

The companies leading this market are not just selling insulation—they are providing essential solutions for constructing energy-efficient, comfortable, and truly sustainable buildings for the future.