The Global Blow-in Cellulose Insulation Market was valued at USD 792.4 Million in 2024 and is projected to reach USD 1.14 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 4.7% during the forecast period (2025–2032). This sustained growth is fueled by the global push for energy-efficient construction, rising demand for sustainable building materials, and stringent government regulations promoting green building standards.

As the construction industry pivots toward eco-friendly and high-performance insulation solutions, cellulose insulation has emerged as a leading choice due to its superior thermal performance, sound absorption qualities, and high recycled content. In this blog, we profile the Top 10 Companies in the Blow-in Cellulose Insulation Industry—a dynamic mix of established manufacturers, sustainability pioneers, and innovative material specialists shaping the future of building envelopes.

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🔟 1. Greenfiber LLC

Headquarters: Charlotte, North Carolina, USA
Key Offering: Cocoon™ Blow-in Cellulose Insulation

Greenfiber is a dominant force in the North American cellulose insulation market, holding an estimated 30% revenue share. The company manufactures insulation products primarily from recycled newspaper, processing over 1.5 billion pounds of paper annually. Their Cocoon™ product line is widely available through major home improvement retailers and professional distributors across the continent.

Sustainability Initiatives:

• Manufactures products containing 85% or higher recycled content

• Diverts significant volumes of paper waste from landfills annually

• Committed to carbon-neutral manufacturing operations by 2030

Download FREE Sample Report: Blow-in Cellulose Insulation Market – View in Detailed Research Report

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9️⃣ 2. GUTEX Holzfaserplattenwerk H. Henselmann GmbH & Co. KG

Headquarters: Ühlingen-Birkendorf, Germany
Key Offering: GUTEX Thermofibre Blown Insulation

GUTEX is a leading European manufacturer of wood fiber insulation products, including specialized blow-in cellulose insulation for walls, roofs, and floors. The company utilizes sustainably sourced wood from regional forests and operates with a strong focus on ecological production processes, making it a preferred supplier for Passivhaus and other high-performance building standards.

Sustainability Initiatives:

• Utilizes 100% renewable energy in manufacturing processes

• Products are fully compostable and biodegradable

• Pioneer in Cradle to Cradle Certified® building materials

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8️⃣ 3. International Cellulose Corporation

Headquarters: Houston, Texas, USA
Key Offering: Insul-Safe® 4 Blow-in Insulation

International Cellulose Corporation (ICC) is a major player in the commercial and residential insulation markets, with a particular focus on blow-in cellulose applications. The company’s products are known for their fire-resistant properties, achieving Class 1/A fire ratings through proprietary borate treatments. ICC serves both new construction and retrofit markets across North America.

Sustainability Initiatives:

• Products made from 85% post-consumer recycled paper

• Implements closed-loop water systems in manufacturing

• Partners with local municipalities for paper waste sourcing

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7️⃣ 4. J. Rettenmaier & Söhne GmbH (JRS)

Headquarters: Rosenberg, Germany
Key Offering: VITACEL® Cellulose Fibers for Insulation

JRS is a global leader in cellulose fiber technology, supplying specialized cellulose materials for various industries including insulation. While not exclusively an insulation manufacturer, the company provides high-quality cellulose fibers that form the base material for many blow-in insulation products worldwide. Their technical expertise in fiber processing makes them a key supplier to insulation manufacturers.

Sustainability Initiatives:

• Develops fibers from sustainable wood and plant sources

• Focuses on biodegradable and compostable material solutions

• Implements energy-efficient fiber processing technologies

Download FREE Sample Report: Blow-in Cellulose Insulation Market – View in Detailed Research Report

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6️⃣ 5. Nu-Wool Co., Inc.

Headquarters: Janesville, Wisconsin, USA
Key Offering: Nu-Wool Premium Blow-in Insulation

Nu-Wool has been manufacturing cellulose insulation since 1948, making it one of the oldest and most experienced companies in the industry. The company specializes in both residential and commercial applications, with a particular focus on retrofit projects. Their manufacturing facilities are strategically located to serve regional markets across the United States efficiently.

Sustainability Initiatives:

• Uses locally sourced recycled newspaper from regional communities

• Manufactures products with up to 90% recycled content

• Focuses on energy-efficient production methods

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5️⃣ 6. Peter Seppele Gesellschaft m.b.H.

Headquarters: Pöchlarn, Austria
Key Offering: Climacell Blow-in Cellulose Insulation

Peter Seppele is a prominent Austrian manufacturer specializing in ecological insulation materials. The company’s Climacell product line includes blow-in cellulose insulation made from recycled paper, treated with natural salts for fire resistance. Their products are particularly popular in Central and Eastern European markets where sustainable building practices are rapidly gaining traction.

Sustainability Initiatives:

• Employs eco-friendly production processes with minimal emissions

• Products certified under various European ecological standards

• Focuses on regional sourcing and distribution to reduce carbon footprint

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4️⃣ 7. ISOCELL GmbH

Headquarters: Graz, Austria
Key Offering: ISOCELL Natural Blown-in Insulation

ISOCELL specializes in natural insulation materials, with blow-in cellulose being a core product category. The company’s insulation products are made from recycled paper and treated with boron compounds for fire and pest resistance. ISOCELL has a strong presence in the European market, particularly in Germany, Austria, and Switzerland where energy efficiency standards are among the world’s most stringent.

Sustainability Initiatives:

• Manufactures 100% recyclable and compostable insulation materials

• Uses natural and non-toxic additives for fire protection

• Focuses on products with exceptional life cycle assessment results

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3️⃣ 8. Cellubor

Headquarters: Saint-Germain-Laprade, France
Key Offering: Cellubor Blow-in Cellulose Insulation

Cellubor is a French manufacturer specializing in cellulose insulation products for the construction industry. The company focuses on providing high-performance insulation solutions that meet France’s rigorous thermal regulations (RT 2012 and RE2020). Their blow-in cellulose is particularly popular for attic and wall insulation in both residential and commercial applications.

Sustainability Initiatives:

• Utilizes French-sourced recycled paper materials

• Implements energy-saving manufacturing processes

• Products contribute to French HQE (High Environmental Quality) certification

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2️⃣ 9. Soprema Group

Headquarters: Strasbourg, France
Key Offering: Sopralene Floc Blow-in Insulation

Soprema is a diversified building materials company with a growing presence in the cellulose insulation market. While known primarily for waterproofing solutions, the company has expanded into insulation products, including blow-in cellulose made from recycled paper. Soprema’s extensive distribution network across Europe and North America provides significant market reach for their insulation products.

Sustainability Initiatives:

• Invests in circular economy principles for material sourcing

• Develops products with high recycled content and recyclability

• Committed to reducing carbon footprint across product lifecycle

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1️⃣ 10. Applegate Insulation

Headquarters: Marengo, Illinois, USA
Key Offering: Applegate Cellulose Blow-in Insulation

Applegate Insulation manufactures a comprehensive range of cellulose insulation products, including blow-in formulations for various applications. The company serves both DIY and professional markets through retail channels and contractor networks. Applegate’s products are known for their consistent quality and performance, backed by comprehensive technical support and installation guidelines.

Sustainability Initiatives:

• Products contain minimum 85% recycled paper content

• Focuses on energy-efficient manufacturing operations

• Participates in industry sustainability certification programs

Get Full Report Here: Blow-in Cellulose Insulation Market – View in Detailed Research Report

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🌍 Outlook: The Future of Blow-in Cellulose Insulation is Greener and Smarter

The blow-in cellulose insulation market is experiencing a significant transformation driven by sustainability mandates and technological innovation. While traditional insulation materials still dominate certain segments, cellulose is gaining market share due to its environmental benefits and performance characteristics. The industry is investing in advanced manufacturing processes, improved application technologies, and enhanced product formulations to meet evolving market demands.

📈 Key Trends Shaping the Market:

• Rising adoption in retrofit applications across North America and Europe

• Stringent building energy codes mandating higher insulation performance

• Development of specialized formulations for different climate zones

• Growing preference for natural and non-toxic building materials

Get Full Report Here: Blow-in Cellulose Insulation Market – View in Detailed Research Report

The companies listed above are not only manufacturing insulation products—they’re advancing the sustainable building revolution through innovative material solutions that reduce energy consumption and environmental impact.