Thermaflex Izolacji Sp. z o.o.

What Thermaflex Izolacji Sp. z o.o. does

Thermaflex Izolacji Sp. z o.o. is a Polish-incorporated subsidiary of Thermaflex International Holding B.V., a privately held Dutch group headquartered in Waalwijk that has manufactured thermal insulation products since its founding in 1976. The group operates manufacturing facilities in the Netherlands, Poland, Turkey, and Thailand, with sales offices in France, Germany, Austria, Denmark, Poland, and Asia, and serves customers in 45+ countries. Its product portfolio centers on pre-insulated polymer piping (Flexalen, based on PB-1), polyethylene foam insulation (ThermaSmart), bio-based insulation (ThermaEco), and flexible air ducts (TQ-Air). Products carry Cradle to Cradle Bronze, LEED, BREEAM, and DGNB sustainability credentials, and marine-grade systems hold Type Approval and IMO compliance for shipboard use.

The company sells primarily into district heating and hot-water distribution networks, HVAC systems for commercial and industrial buildings, marine piping (with preferred-provider status at Princess Cruises, Holland America Line, Virgin Voyages, and Seabourn), and adjacent industrial applications including cryogenic biopharma (Single Use Support) and data-center cooling. Go-to-market combines direct sales offices in core European markets with certified-installer networks and engineering-specifier relationships, supported by the Thermaflex Academy training program. Membership in industry associations such as PSWIP (Polish district heating) and installer-certification programs (e.g., Latitude 1 Maritime) reinforce specification pull-through.

Revenue mechanics are project- and volume-driven: capital infrastructure programs (district-heating networks, building HVAC retrofits, cruise newbuilds and dry-dock refits) generate large periodic orders, while ongoing maintenance and replacement provide baseline volume. The company is led by CEO Hans de Haas and is privately held with no public listing, no disclosed PE/VC sponsorship, and no public M&A activity to date. The 50-year operating history and expansion into cryogenic and data-center verticals point to a deliberate, multi-decade diversification strategy rather than a venture-backed growth posture.

Name

Thermaflex Izolacji Sp. z o.o.

Legal name

Thermaflex International Holding B.V.

Website

https://thermaflex.com.pl

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

1–10 employees

Short description

Thermaflex Izolacji Sp. z o.o. is the Polish subsidiary of Netherlands-based Thermaflex International, a 50-year-old manufacturer of pre-insulated piping (Flexalen), foam insulation (ThermaSmart, ThermaEco), and flexible ducts serving district heating, HVAC, marine, and industrial customers across 45+ countries.

Ownership category

akta.pro rank

Product category

Building Insulation Materials

NAICS

Polystyrene Foam Product Manufacturing (326140), Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

Plastics Foam Products (3086)

akta.pro primary industry

Foam Plastic Insulation (EPS/XPS/PIR/PUR) (IMADAGAD)

akta.pro secondary industries

Industrial & Heavy-Duty Flexible Packaging (Construction, Chemicals, Liners) (IMALABAJ), Engineering Plastics & Performance Resins (PC, PA, POM, PBT, PMMA) (IMAEADAI)

Keywords

• Technical insulation products
• Pre-insulated piping systems
• Polyolefin foam insulation
• District heating networks
• Marine insulation solutions

Headquarters

HQ city

Waalwijk

HQ country

Netherlands

HQ region

Europe

Offices9 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. Insulation Products and Pre-insulated Pipes: Thermaflex generates revenue through the sale of technical insulation materials (ThermaSmart PRO, ThermaEco FRZ, etc.) and pre-insulated pipe systems (Flexalen 600, Flexalen PU, etc.). Products are sold through direct sales offices and distribution partners to installers, contractors, and OEMs.
2. Engineering and Technical Support Services: Technical engineering support including system design calculations, material selection guidance, compliance documentation, installation training, and project support services for complex installations.
3. Custom Development and OEM Solutions: Co-development partnerships for custom insulation solutions integrated into customer manufacturing processes, including pre-insulation services for pipe manufacturers with just-in-time delivery capabilities.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels9 records

Core offering

Thermaflex Izolacji Sp. z o.o. manufactures and sells technical insulation products made from directly extruded closed-cell polyolefin/PE foam and flexible pre-insulated piping systems using proprietary Flexalen® PB-1 material. Its portfolio serves district heating/cooling networks, building HVAC, marine/shipbuilding, industrial facilities, OEM equipment integration, and packaging customers with custom engineering support, factory prefabrication, and certified installer training.

Product overview

Thermaflex offers a comprehensive portfolio of pre-insulated piping solutions and technical insulation products serving heating, cooling, ventilation, and water distribution applications. The product portfolio is organized into two main lines: (1) Pre-insulated pipe product lines under the Flexalen® brand (including Flexalen® 600, Flexalen® 600 HP, Flexalen® PU, Flexalen® PHC, Flexalen® Multiline, Flexalen® Prefabrications, Protectube, Flexalen® accessories, and Flexalen® tools) plus the TQ-Air® pre-insulated ducting system for heat recovery ventilation; and (2) Technical insulation product lines under the ThermaSmart® and ThermaEco® sub-brands (ThermaSmart® PRO, ThermaSmart® Marine, ThermaSmart® ENEV, ThermaSmart® ENEV-Q, ThermaEco® FRZ HF, ThermaEco® ZZ, Ultra M, ThermaCompact, ThermaRod, ProFoam, Heating Cables, and related tools and accessories). These solutions target district heating/cooling networks, building HVAC, marine, industrial facilities, data centers, OEM equipment manufacturing, and packaging sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Flexalen®: Pre-insulated flexible piping systems for heating and cooling networks
• ThermaSmart® PRO
• ThermaSmart® Marine
• ThermaEco®
• TQ-Air®
• Protectube
• Thermaflex Academy

Products and services

• Flexalen® 600 Flexible pre-insulated pipe system using PB-1 polybutylene-1 material for efficient distribution of hot or cold liquids in district heating and cooling networks, enabling easier routing around obstacles and reduced on-site work via factory prefabrication.
• Flexalen® 600 HP High-pressure variant of the Flexalen 600 pre-insulated pipe system engineered for demanding heating and cooling network applications requiring elevated pressure ratings.
• Flexalen® PU Pre-insulated pipe system using polyurethane insulation for enhanced thermal performance in heating and cooling network installations.
• Flexalen® Prefabrications Factory-manufactured custom pre-insulated pipe components including elbows, tees, reducers, and other fittings for streamlined on-site installation in district heating and cooling networks.
• Flexalen® PHC Pre-insulated pipe system variant designed for specific performance characteristics in heating and cooling network applications.
• Flexalen® Multiline Multi-line pre-insulated pipe system combining multiple pipes within a single jacket for complex heating and cooling distribution requirements.
• Protectube Protective tube solution for covering and protecting pre-insulated pipe systems during installation and operation.
• TQ-Air® Pre-insulated duct system for heat recovery ventilation (HRV) applications, reducing energy loss, preventing condensation, and lowering noise levels for efficient ventilation.
• ThermaSmart® PRO Directly extruded polyethylene foam insulation for HVAC and sanitary installations, providing energy-efficient thermal control with condensation prevention and long-term system protection; Cradle to Cradle Certified® Bronze.
• ThermaSmart® Marine Marine-certified insulation solution for ship and offshore installations, providing reliable thermal performance in demanding maritime environments, with trained and certified installation teams.
• ThermaSmart® ENEV Polyethylene foam insulation product line meeting ENEV standards for building thermal insulation requirements.
• ThermaSmart® ENEV-Q Quality-assured variant of the ThermaSmart ENEV insulation product line meeting ENEV standards for building thermal insulation.
• ThermaEco® FRZ HF Polyethylene foam tubes and sheets with closed-cell structure designed for demanding conditions, featuring built-in vapor barrier to prevent condensation and corrosion, with high flexibility and structural integrity for use in extreme climates.
• ThermaEco® ZZ Polyethylene foam insulation product variant designed for specific thermal insulation applications.
• Ultra M Technical insulation product for HVAC and building applications providing thermal performance and condensation control.
• ThermaCompact Compact insulation solution for space-constrained HVAC and sanitary installations, providing efficient thermal control in a reduced profile.
• ThermaRod Rod-format insulation product for technical pipe and component insulation applications.
• ProFoam Customizable PE foam profiles for impact absorption, product protection, and cushioning across logistics and industrial applications.
• Heating Cables Heating cable solutions integrated with insulation systems for frost protection and temperature maintenance in pipe applications.
• Cryogenic Foam Solutions

Quantifiable outcome

• ThermaSmart PRO helps reduce energy losses in buildings
• +3 more outcomes

Named customers12 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• PSWIP (Polskie Stowarzyszenie Wykonawców Izolacji Przemysłowych)coreStrategic or Co-development Partner · 3 March 2026Thermaflex officially joined PSWIP, a Polish non-profit association uniting key companies and professionals in the technical insulation sector. PSWIP plays an important role in developing and strengthening the insulation market in Poland, working closely with industry partners to promote professional standards and support knowledge exchange. PSWIP is also a member of FESI (European Federation of Associations of Insulation Contractors).
• Dutch Farm Design (DFD)coreStrategic or Co-development PartnerPartnership with Dutch Farm Design (DFD) for delivering high-efficiency insulation systems. Thermaflex supplied ThermaEco FRZ insulation for a large poultry processing plant in Saudi Arabia, designed to withstand extreme heat above 40°C and humidity conditions. Thermaflex experts trained the local team using a learn-by-example approach.
• Princess CruisescoreStrategic or Co-development PartnerDiscovery Princess, a cruise ship from Princess Cruises (Carnival Corporation family), entered dry dock in Singapore in November 2025 for planned maintenance and modernization of chilled water and air conditioning systems. Thermaflex is a preferred partner for insulation on this and future projects.
• Holland America LinecoreStrategic or Co-development PartnerPreferred provider agreement for marine insulation solutions, one of four cruise lines signed under the preferred provider agreement.
• Virgin VoyagescoreStrategic or Co-development PartnerPreferred provider agreement for marine insulation solutions; Scarlet Lady crew received Thermaflex Marine expertise training during a marine insulation replacement project.
• SeabourncoreStrategic or Co-development PartnerPreferred provider agreement for marine insulation solutions, one of four cruise lines signed under the preferred provider agreement.
• Latitude 1 MaritimecoreImplementation/ SI/ Consulting PartnerMarine team in Singapore that successfully completed practical training and certification for ThermaSmart Marine installation at Seatrium shipyard (February 2026). They are trained and certified by Thermaflex for proper installation.
• IAQ TechnologiesminorImplementation/ SI/ Consulting PartnerFour installers and two engineers from IAQ Technologies successfully completed ThermaSmart Marine training at Thermaflex Academy in Waalwijk, Netherlands.
• Era Montage Service BVminorImplementation/ SI/ Consulting PartnerPrefabricated skid manufacturer in Almelo, Netherlands that uses Thermaflex insulation solutions and faced challenges with previously used insulation materials being easily damaged.
• ScanPipeminorChannel Partner/ Reseller/ DistributorPartnership at Pipe Center Days event in Taastrup, Denmark, promoting Flexalen as a sustainable alternative to steel district heating pipes. ScanPipe highlights Thermaflex products at industry events.
• FESI (European Federation of Associations of Insulation Contractors)minorStrategic or Co-development PartnerEuropean federation that PSWIP is a member of, connecting national initiatives with the broader European insulation contractor community.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Rehau: Polymer-based solutions provider for construction, including pre-insulated pipe systems (RAUTHERM) and building insulation. Competitor across both Thermaflex's Flexalen® and ThermaSmart® product lines, particularly in German-speaking markets.
• Armacell: Global leader in flexible elastomeric foam insulation (ArmaFlex) and engineered foams for HVAC, refrigeration, and industrial applications. Closest direct competitor to Thermaflex in technical insulation, with overlapping product categories and similar focus on condensation control and energy efficiency.
• Logstor: Danish manufacturer of pre-insulated district heating and cooling pipe systems serving European utilities. Direct competitor to Thermaflex's Flexalen® product line in the same primary market segment (DHC networks), with comparable prefabrication and sustainability positioning.
• Isoplus: European manufacturer of pre-insulated pipes for district heating networks. Direct competitor to Thermaflex in DHC infrastructure, particularly across Central Europe and Nordic markets with comparable project-based sales motion.
• Uponor: Global provider of pipe systems for heating, cooling, and water distribution. Competes with Thermaflex in pre-insulated piping for residential and commercial heating/cooling networks, with overlapping Nordic and European distribution channels.
• Brugg Pipes: Swiss-based manufacturer of pre-insulated flexible pipe systems for district heating and cooling. Directly competes with Thermaflex Flexalen® in European DHC infrastructure projects with similar product specifications and target customers.

Broad incumbents

• Rockwool: Global leader in stone wool insulation for buildings, industrial, and marine applications. Broad incumbent competing with Thermaflex in marine and industrial insulation markets, though using a fundamentally different material technology (mineral wool vs. PE foam).
• Owens Corning: Global insulation and building materials manufacturer with FOAMGLAS cellular glass and insulation products. Broad incumbent competing in industrial and commercial insulation markets where Thermaflex operates.
• Kingspan Group: Global building envelope solutions provider with significant insulation manufacturing (Kooltherm, Therma). Broad incumbent competing across multiple Thermaflex verticals including construction insulation and HVAC, with much larger scale and broader geographic footprint.
• BASF (Styrodur/Neopor): Global chemical company producing XPS foam insulation (Styrodur) for construction applications. Broad incumbent competing with Thermaflex in building insulation, though using different foam chemistry (polystyrene vs. polyethylene).

Market position

Strengths1 record

Weaknesses5 records

Competitive moat5 records

Key risks4 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@ThermaflexInt
• Facebookfacebook.com/thermaflexinternational
• LinkedInlinkedin.com/company/thermaflex-izolacji-sp-z-o-o-

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 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 Thermaflex Izolacji Sp. z o.o.