WNL Horti Insulation
WNL Horti Insulation (WNL B.V.) is a Dutch subsidiary of BOAL Group that designs, supplies, and assembles insulated sandwich panel roof, sidewall, and interior systems for greenhouse builders and commercial horticultural growers in 50+ countries worldwide.
- Company typePrivate
- Founded2006
- HeadquartersMaasdijk, Netherlands
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What WNL Horti Insulation does
WNL Horti Insulation (legal entity WNL B.V.) is a Dutch manufacturer and supplier of insulated sandwich panel systems for the global horticultural greenhouse industry. Founded in 2006 by Gert Hollaar and headquartered in Maasdijk (relocated from Hoek van Holland in 2023), the company operates as a wholly-owned subsidiary of BOAL Group and serves customers in 50+ countries across Europe, North America, Oceania, and Latin America. Its core offering comprises roof systems, sidewall systems, and interior space systems built from PIR or stone wool sandwich panels with various coatings (Goosewing Grey, Green Grey Matt, WNL Grey), thicknesses, and fire-resistance ratings (EI30–EI120), including FM-certified variants for the North American market.
The company's differentiation rests on two proprietary technologies: the globally patented WNL EasyJoint™ waterproof coupling system that enables sealant-free panel installation with a minimum 10-year warranty, and the WNL TEX™ stainless-steel screw with split-point fastening geometry. Product lines extend to ECO ammonia-resistant panels, wall cassettes, skylight panels, custom flashings, gutter systems, and the BOAL S-House™ angled roof system for in-greenhouse processing and logistics spaces. Integration with BOAL Group sister companies BOAL Extrusion and BOAL Systems allows bundled aluminum + insulation + roof system delivery, which is the central source of competitive advantage.
WNL monetizes through project-based hardware sales of sandwich panels and accessories plus professional services for project engineering, assembly guidance, and logistics coordination. Pricing is not publicly disclosed and is project-specific by panel type, thickness, quantity, and customization. Go-to-market combines enterprise field sales to greenhouse builders (Debets Schalke, Havecon, VDF, GVZ), direct sales to end-users (Van den Belt Tomatoes, Costa Australia, Zöld Forrás, Rainbowcolors), and a Dutch wholesale subsidiary (Westland Dak en Wand). Customer concentration spans enterprise commercial horticulture, garden centre retail, and broader industrial construction segments. Marketing is primarily B2B via website, LinkedIn, downloadable brochures, email, and select industry events.
WNL Horti Insulation firmographics
Firmographics- Name
- WNL Horti Insulation
- Legal name
- WNL B.V.
- Website
- https://wnl-horti-insulation.com
- Company type
- Private
- Founded year
- 2006
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- WNL Horti Insulation (WNL B.V.) is a Dutch subsidiary of BOAL Group that designs, supplies, and assembles insulated sandwich panel roof, sidewall, and interior systems for greenhouse builders and commercial horticultural growers in 50+ countries worldwide.
- Ownership category
- akta.pro rank
WNL Horti Insulation industry classification
Industry- Product category
- Insulated Sandwich Panels for Greenhouses
- SIC
- Steam & Air-Conditioning Supply (4961)
- akta.pro primary industry
- Roof Insulation & Cover Boards (IMADAFAN)
- akta.pro secondary industry
- Exterior Insulation & Weatherproofing (House Wrap, Air/Water Barriers) (HSAPAKAK)
Keywords
Where WNL Horti Insulation is headquartered
LocationHeadquarters
- HQ city
- Maasdijk
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
WNL Horti Insulation business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Sandwich Panel Sales: WNL develops, supplies, and assembles innovative high-quality insulation systems for roofing and sidewall systems. They offer various panel types including roof panels, wall panels, skylight panels, with different thicknesses and insulation ratings. Panels come in various colors and finishes (Goosewing Grey, Green Grey Matt, WNL Grey).
- Assembly Materials and Accessories: WNL supplies complete assembly materials, flashings, gutter profiles, and installation accessories. This includes metalwork custom-made to specifications, assembly hardware, EPDM materials, and penetrations.
- Assembly Services and Construction Guidance: WNL provides assembly services, construction guidance, and construction advice. They can arrange logistics for shipping materials and fully manage engineering and logistics if desired by the client.
- Custom Solutions and Engineering: Project-specific custom solutions including technical drawings, panel configurations, and special designs. The Project Engineering department prepares complete drawing packages and instructions for customers.
Go-to-market motion2 records
Distribution channels4 records
Marketing channels7 records
WNL Horti Insulation product offering
Product offeringCore offering
WNL Horti Insulation develops, supplies, and assembles innovative high-quality insulated sandwich panel systems for roofing, sidewalls, and interior spaces. Their offerings target greenhouse builders and horticultural businesses worldwide and include roof panels, wall panels, skylight panels, and proprietary solutions such as the globally patented WNL EasyJoint™ waterproof coupling system, the WNL TEX™ fastening screw, fire-resistant and FM-certified panels, and the BOAL S-House™ angled roof system.
Product overview
WNL Horti Insulation is a leading supplier of insulation systems to greenhouse builders worldwide, offering a comprehensive portfolio of sandwich panel products and integrated systems. The core product line includes WNL Roof Systems, WNL Sidewall Systems, and WNL Interior Space Systems - all utilizing high-quality insulated sandwich panels available in various thicknesses and configurations. Key innovations include the patented WNL Easyjoint™ waterproof coupling system (developed with SAB) enabling sealant-free assembly, and the WNL TEX™ stainless steel fastening screw. The company also offers the BOAL S-House™ angled roof system, specialized ECO panels (ammonia-resistant), fire-resistant panels (PIR/stone wool with EI30-EI120 ratings), FM-certified panels for North America, wall cassettes, skylight panels, and complete gutter systems. Supporting products include flashings in any colour, assembly materials, and construction services. All sandwich panels meet European NEN standards with warranties ranging from 10 to 40 years. The company is part of BOAL Group and collaborates with sister companies BOAL Extrusion and BOAL Systems for aluminum constructions.
Differentiator
Problem solved
Functional benefit
Brands
- WNL Easyjoint: A patented waterproof coupling system for sandwich panels that enables sealant-free installation, reducing assembly costs and providing watertight seals for greenhouse roof applications.
- WNL TEX
- WNL Grey
- WNL TEX
Products and services
- WNL Roof Systems
Quantifiable outcome
- Reduced CO2 emissions through improved insulation in greenhouse environments
- +2 more outcomes
Companies that use WNL Horti Insulation
Customer profileNamed customers9 records
Segments4 records
Ideal customer profiles4 records
WNL Horti Insulation technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
WNL Horti Insulation partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core and major.
- SAB (SAB-profiel)coreSAB-profiel is a trusted supplier of sandwich panels to WNL. They co-developed the WNL EasyJoint™ system together. WNL colleagues visited SAB-profiel facilities in Geldermalsen as part of anniversary celebrations to strengthen the partnership and learn about production processes and quality control.
- Debets SchalkemajorDutch greenhouse builder and project partner for international projects. WNL supplies complete roof and wall systems for Debets Schalke greenhouse projects including Rainbowcolors Andijk (Netherlands) and Zöld Forrás Hungary (73,000 m2 tomato greenhouse).
- VDF GreenhousesmajorPartnership since 2022 for Project Waibel in Austria - extensive renovation and expansion of a modern garden centre. WNL supplies WNL EasyJoint™ roof panels, façade systems, fire-resistant panels, and finishing materials.
- DAEL GroupcoreDAEL is a group of specialized technical construction companies. WNL supplied 100% recyclable sandwich panels for DAEL's new headquarters in Maasdijk. Joint case study video released showcasing sustainable construction collaboration. WNL signed 10-year lease with DAEL Groep for new premises.
- BOAL GroupcoreWNL is part of BOAL Group, which provides greenhouse builders with comprehensive modular systems and solutions. Within the group, WNL works closely with BOAL Extrusion (aluminum profiles) and BOAL Systems (roof systems). The group has subsidiaries including Holland Screens, Holland Netting, Alumat Zeeman, and BGF joint venture in China.
- BOAL ExtrusioncoreSister company within BOAL Group with in-house aluminum extrusion facilities in the Netherlands and UK. Provides aluminum profiles for greenhouse construction and other sectors. WNL delivers aluminum constructions together with BOAL Extrusion.
- BOAL SystemscoreSister company providing aluminum roof and sidewall systems for high-tech greenhouse constructions. WNL works with BOAL Systems to deliver complete integrated solutions. BOAL Systems has completed over 8,000 hectares of new greenhouses worldwide.
- Westland Dak en WandcoreDutch subsidiary of WNL operating as a wholesale distributor for sandwich panels, corrugated sheets (damwanden), and flashings for the local Dutch market.
- Havecon Kassenbouw B.V.majorGreenhouse construction company. Partner on GEF America Export project in North America (35,000 m2 gable roof for tomato and strawberry cultivation).
- GVZ GlasshousesmajorUK-based greenhouse builder. Long-standing partnership for various projects in the United Kingdom. WNL supplies complete roofing systems to GVZ including sandwich panels, roof lights, and flashings for garden centre renovations.
Scale indicators3 records
Recent moves7 records
Expansion highlights5 records
WNL Horti Insulation competitors and assessment
Company assessmentDirect peers
- Isocab: Belgian manufacturer of insulated sandwich panels for roof and wall applications. Directly comparable to WNL on product architecture (PIR cores, steel facings, fire-resistance ratings) and on serving European industrial and agricultural building projects.
- Kingspan Group: Global leader in insulated panels and building envelope systems. Directly comparable to WNL because Kingspan's insulated roof and wall panel business competes head-to-head on greenhouse, industrial, and commercial envelope projects, with overlapping fire-rated and FM-certified product lines.
- Centria: US manufacturer of architectural metal wall and roof systems including insulated metal panels. Directly comparable to WNL on insulated panel systems and on serving North American construction — a market where WNL specifically holds FM Approval to compete.
- Trimo: European manufacturer of sandwich panels and modular building envelope solutions (specifically referenced in WNL's Waibel Austria project). Directly comparable due to overlapping sandwich panel product lines for fire-resistant and architectural applications.
- SAB-profiel: Dutch sandwich panel supplier and co-developer of WNL EasyJoint™. Directly comparable because SAB-profiel supplies WNL and operates in the same Dutch market with similar sandwich panel systems for building envelope applications.
- Metecno: International sandwich panel manufacturer serving industrial, commercial, and agricultural buildings. Comparable to WNL because it offers PIR and mineral wool panels in similar thickness/fire-rated configurations and competes for similar envelope specifications.
Broad incumbents
- Arbonia: European building envelope manufacturer producing insulated panels, doors, and glazing systems. Broad incumbent comparable to WNL on sandwich panel product lines and on serving European commercial and industrial construction markets.
- ArcelorMittal Construction: Building envelope division of ArcelorMittal offering sandwich panels, steel roofing, and cladding. Broad incumbent comparable to WNL on insulated roof/wall panels, with much larger scale and broader portfolio spanning non-horticulture construction.
- Hörmann: Large European manufacturer of building envelope products including industrial doors, frames, and increasingly insulated panel systems. Broad incumbent comparable to WNL on integrated building envelope scope for industrial and commercial buildings, particularly in the DACH region.
- Tata Steel Building Systems: Steel supplier of WNL Grey (SDP50) coating and broader sandwich panel / building envelope systems. Broad incumbent comparable because Tata Steel supplies the coating technology used in WNL panels and competes in adjacent envelope product categories.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
WNL Horti Insulation social profiles
Digital presenceWNL Horti Insulation compliance and trust
Trust signalCompliance3 records
WNL Horti Insulation financial estimates
Financial estimateRevenue estimate
Valuation estimate
WNL Horti Insulation leadership team
Management profileNumber of profiles
Profiles6 records
WNL Horti Insulation subsidiaries and ownership
Company hierarchySubsidiaries1 record
WNL Horti Insulation funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
WNL Horti Insulation M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about WNL Horti Insulation
What does WNL Horti Insulation do?
WNL Horti Insulation develops, supplies, and assembles innovative high-quality insulated sandwich panel systems for roofing, sidewalls, and interior spaces. Their offerings target greenhouse builders and horticultural businesses worldwide and include roof panels, wall panels, skylight panels, and proprietary solutions such as the globally patented WNL EasyJoint™ waterproof coupling system, the WNL TEX™ fastening screw, fire-resistant and FM-certified panels, and the BOAL S-House™ angled roof system.
Is WNL Horti Insulation a public or private company?
WNL Horti Insulation is a private company. It is classified as corporate owned and is currently operating.
When was WNL Horti Insulation founded?
WNL Horti Insulation was founded in 2006. It employs 11 to 50 people.
Where is WNL Horti Insulation based?
WNL Horti Insulation is headquartered in Maasdijk, Netherlands, in the Europe region.
How does WNL Horti Insulation make money?
Four revenue lines are on record. Sandwich Panel Sales are the primary driver. The others are assembly Materials and Accessories, assembly Services and Construction Guidance and custom Solutions and Engineering.
Who are WNL Horti Insulation's main competitors?
Direct peers on record are Isocab, Kingspan Group, Centria, Trimo, SAB-profiel and Metecno. Broad incumbents are Arbonia, ArcelorMittal Construction, Hörmann and Tata Steel Building Systems.
Does WNL Horti Insulation have an API?
No public API is recorded for WNL Horti Insulation.
What industry is WNL Horti Insulation in?
WNL Horti Insulation's product category is Insulated Sandwich Panels for Greenhouses. Its primary akta.pro industry code is IMADAFAN, Roof Insulation & Cover Boards, with a secondary code of HSAPAKAK, Exterior Insulation & Weatherproofing (House Wrap, Air/Water Barriers). Its SIC code is 4961.