Isocell

What Isocell does

ISOCELL GmbH & Co KG is an Austrian manufacturer, founded in 1992 and headquartered in Neumarkt am Wallersee (Salzburg), that produces cellulose-based thermal insulation and complementary airtightness systems for the European building-envelope market. Its core product, ISOCELL Cellulose Insulation, is manufactured from over 90% sorted recycled waste paper treated with mineral salts for fire and mold protection, and is installed via proprietary blow-in technology that produces seamless, gap-free insulation layers. The company complements the bulk insulation with the AIRSTOP family of airtightness products (adhesive tapes, membranes, vapor barriers, and sealants), and sells specialized Isoblow blowing machines, hoses, and accessories to professional installers.

ISOCELL monetizes through three one-time-sale streams: bulk cellulose insulation, AIRSTOP airtightness system components, and capital-equipment blow-in machines. Pricing is published via downloadable annual price lists (the most recent being the 2026 airtightness systems list). The company sells exclusively B2B through professional construction trade channels rather than direct to consumers, distributing via a network of trained and licensed specialist installers certified through the in-house ISOCELL Academy, with direct regional sales offices in Austria (HQ), France (Guipavas), Sweden (Kista), and Switzerland (Gossau SG), and additional market presence in Germany, Czech Republic, Italy, Netherlands, Poland, Slovakia, and Slovenia. The intended customers are construction companies, timber-frame builders, prefabricated housing manufacturers, insulation contractors, and architects/end-developers seeking sustainable building-envelope solutions.

ISOCELL is privately held as a limited partnership with no external institutional investors or parent company, and no funding rounds, M&A, or public listing activity is documented. The leadership team consists of a managing director under commercial law (Anton Spitaler) plus a founder (Wolfram Reisinger) and a second managing director (Heiko Seibert) per the company website, supported by named technical experts in blow-in technology, building technology, and construction technology. Headcount is in the 51-100 range, consistent with a mid-sized specialty manufacturer.

Name

Isocell

Legal name

ISOCELL GmbH & Co KG

Website

https://isocell.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

51–100 employees

Short description

ISOCELL is an Austrian manufacturer of cellulose thermal insulation, AIRSTOP airtightness systems, and proprietary blow-in installation equipment, sold B2B across 12+ European countries through a network of Academy-certified installer partners for construction, timber-frame, and prefabricated housing projects.

Ownership category

akta.pro rank

Product category

Building Insulation Materials

NAICS

Nonwoven Fabric Mills (31323), Resin, Synthetic Rubber, and Artificial and Synthetic Fibers and Filaments Manufacturing (3252)

SIC

Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820)

akta.pro primary industry

Cellulose (Recycled Fiber) Insulation (IMADAGAC)

akta.pro secondary industry

Thermal & Acoustic Insulation Textiles (Insulation Felts/Soundproofing) (IMAOADAL)

Keywords

• Cellulose insulation
• Airtightness systems
• Blow-in technology
• Building insulation materials
• Thermal insulation products

Headquarters

HQ city

Salzburg

HQ country

Austria

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Cellulose Insulation Products: Sale of cellulose insulation materials manufactured from recycled paper, sold to professional installers and construction companies.
2. Airtightness System Products: Sale of airtightness products including tapes, membranes, sealants, and vapor barriers for building envelope sealing.
3. Blow-in Machines and Equipment: Sale and distribution of Isoblow blowing machines, hoses, nozzles, and accessories for insulation installation contractors.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Isocell manufactures cellulose insulation and airtightness system products for the construction industry. The core offering is cellulose wadding insulation made from over 90% recycled newspaper, applied via proprietary blow-in technology for seamless installation, complemented by the AIRSTOP range of tapes, membranes, vapor barriers, and sealants for creating airtight building envelopes. The company also produces and distributes Isoblow blowing machines and equipment for installation contractors.

Product overview

ISOCELL offers a comprehensive system of building insulation and airtightness products centered around cellulose insulation technology. The core product is ISOCELL Cellulose Insulation, made from recycled newspaper and applied via proprietary blow-in technology. This is complemented by the AIRSTOP airtightness systems product line (including tapes, membranes, vapor barriers, and the new VISKOSEAL spray sealant) and specialized blow-in machines/equipment. Additional offerings include WoodyFIX accessible floor solutions, roof underlays, and professional training through ISOCELL Academy. The complete solution enables the creation of an airtight, well-insulated building envelope combining thermal, fire, moisture, and sound protection.

Differentiator

Problem solved

Functional benefit

Products and services

• ISOCELL Cellulose Insulation Primary insulation product made from over 90% sorted recycled newspaper, treated with mineral salts for fire and mold protection. Applied via blow-in technology for seamless, gap-free installation in walls, roofs, and floors.
• AIRSTOP Airtightness Systems Complete system of sealing products including adhesive tapes, membranes, vapor barriers, and sealants designed to create an airtight building envelope. Covers building shell, vapor barrier, and diffusion-convection management.
• Isoblow Blow-in Machines and Equipment Specialized blowing machines and equipment for installing cellulose insulation. Includes Isoblow machines with wireless remote control, intelligent material switching, and documentation capabilities for industrial prefabrication applications.
• AIRSTOP VISKOSEAL Sprayable sealant product for achieving perfect component seals in airtightness applications, complementing the AIRSTOP airtightness range.
• WoodyFIX Top Floor Ceiling Solution Walkable and insulated top floor ceiling solution combining WoodyFIX accessibility with ISOCELL cellulose fibre insulation, allowing accessible top floor use while maintaining insulation performance.
• Roof Underlays Roof membrane products for weather protection and breathability in roof constructions.
• ISOCELL Academy Training and Certification Training and certification program for installers and construction professionals on cellulose insulation processing and airtightness sealing techniques. Supports the licensed installer network across Europe.
• Facade Insulation Solutions Wall insulation solutions for facade applications using cellulose insulation, marketed as a complete solution package for facade applications.

Quantifiable outcome

• Phase shift of 12-14 hours reduces summer heat penetration
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Dämmen & mehrcoreChannel Partner/ Reseller/ DistributorLong-standing 20-year partnership celebrating anniversary. Dämmen & mehr is a key installation partner for ISOCELL products in their market region.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Knauf Insulation: Major European and global manufacturer of mineral wool, glass wool, and other insulation systems. Broad incumbent that competes across the same building-insulation applications as Isocell but at substantially larger scale and broader product breadth.
• Kingspan Group: Global building envelope solutions provider with insulation, membranes, and air barrier products. Comparable to Isocell's combined insulation + AIRSTOP airtightness system positioning, though at much larger scale and broader geographic footprint.
• Saint-Gobain Isover: Global glass and mineral wool insulation manufacturer within Saint-Gobain. Largest incumbent in the broader insulation category that Isocell competes in, with broader product portfolio, scale advantages, and global distribution versus Isocell's specialized cellulose offering.
• Rockwool: Global leader in stone wool (mineral wool) insulation products. Competes with Isocell in the broader insulation market with a much wider product range, established European distribution, and significant brand equity.

Direct peers

• Steico: European manufacturer of wood-fiber insulation boards and blow-in insulation, marketed as natural/ecological alternatives to conventional insulation. Directly comparable in natural-insulation category and overlapping application areas with Isocell cellulose.
• Warmcel: UK-based manufacturer of cellulose fiber insulation from recycled paper. Directly comparable cellulose insulation product, recycled-paper feedstock, and B2B installer distribution model, though primarily regional to the UK versus Isocell's broader European presence.
• Pavatex: Swiss manufacturer of wood-fiber insulation boards under the PAVATEX brand, now part of Soprema. Overlaps with Isocell in natural-fiber insulation category and shares the Swiss/European market footprint and sustainability-led positioning.
• Gutex: German manufacturer of wood-fiber insulation boards for roof, wall, and floor applications. Competes in the natural/ecological insulation segment adjacent to Isocell's cellulose offering with comparable sustainability positioning and European installer-channel sales motion.
• Homatherm: German manufacturer of cellulose and wood-fiber insulation for roofs, walls, and floors. Direct competitor to Isocell's cellulose insulation product line, with overlapping recycled-fiber positioning and European B2B installer-channel go-to-market.
• CIUR: Czech manufacturer of cellulose (paper-fiber) insulation marketed under the Climatizer Plus brand. Closely comparable product offering, raw material base, and Central European market footprint to Isocell.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@isocell_com
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Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Isocell