Weissenseer Holz-System-Bau GmbH

What Weissenseer Holz-System-Bau GmbH does

Weissenseer Holz-System-Bau GmbH is a family-owned Austrian timber construction company founded in the 1930s and headquartered in Greifenburg, Carinthia. It operates two business lines: custom single-family homes (Einfamilienhäuser) delivered to private buyers, and business-customer construction (Businesskunden) covering multi-storey residential, commercial, industrial, institutional, and renovation projects for architects, general contractors, developers, and public-sector clients. The company maintains a regional office in Vienna and dedicated sales operations in Berlin and in a JV in Zhuozhou City, China.

The firm's technological core is the proprietary WCB-Factory (Weissenseer Compact Building Factory) in Greifenburg, a self-described 'most compact factory in the world' passive house facility (~2,675 m² production hall, ~1,050 m² warehouses, ~915 m² office) that produces prefabricated cross-laminated timber modules assembled on-site without thermal bridging. Around this factory, Weissenseer has developed 'Intelligent Skins' (Intelligente Gebäudehüllen), modular building shells that can be applied over existing structures to create energy-positive envelopes without disrupting building use, and which meet plus-energy / nearly zero energy building standards that became mandatory across Europe in 2020.

Revenue is generated on a project-by-project, one-time construction contract basis; pricing is not publicly disclosed. Go-to-market is hybrid: direct enterprise field sales and architect/contractor partnerships for business customers, combined with consultation, catalog distribution, and online advisory services for private homeowners. The company employs approximately 35 staff (capacity of the factory office building) and has a reference portfolio of 27 documented projects including award-winning work such as the Mineroom student residence at Montanuniversität Leoben. Leadership is concentrated in the Weissenseer family, with Christof Weissenseer as CEO and owner and Julia Weissenseer taking on a public-facing communications role.

Name

Weissenseer Holz-System-Bau GmbH

Legal name

Weissenseer Holz-System-Bau GmbH

Website

https://weissenseer.com

Company type

Private

Founded year

1930

Operating status

Operating

Headcount range

11–50 employees

Short description

Family-owned Austrian timber construction firm operating its own WCB-Factory in Greifenburg, producing prefabricated modular wood buildings and 'Intelligent Skins' envelopes to passive house standards for private homeowners, architects, developers, and institutional clients across the DACH region, Germany, and Eastern Europe/China.

Ownership category

akta.pro rank

Product category

Prefabricated Timber Construction

NAICS

Prefabricated Wood Building Manufacturing (321992), New Single-Family Housing Construction (except For-Sale Builders) (236115), Residential Remodelers (236118)

SIC

Prefabricated Wood Bldgs & Components (2452), General Bldg Contractors - Residential Bldgs (1520), Millwood, Veneer, Plywood, & Structural Wood Members (2430)

akta.pro primary industry

Residential Modular & Prefabricated Home Construction (IMAFABAF)

akta.pro secondary industries

Custom Home Building (IMAFABAC), Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), Mass Timber & Structural Engineered Wood (CLT, Glulam, NLT/DLT) (IMADADAC)

Keywords

• Modular timber construction
• Prefabricated wood buildings
• Passive house construction
• Intelligent building skins
• Cross-laminated timber modules

Headquarters

HQ city

Greifenburg, Kärnten

HQ country

Austria

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Wood Building Construction: Weissenseer designs and constructs custom wood-based buildings for private homeowners (single-family houses) and business customers (multi-storey residential buildings, commercial, industrial, institutional facilities). Revenue is generated through project-based construction contracts, including new builds and renovations using intelligent skin systems.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels8 records

Core offering

Weissenseer Holz-System-Bau GmbH designs, manufactures, and assembles energy-efficient timber buildings using a proprietary prefabricated modular construction system produced at its own WCB-Factory in Greifenburg, Austria. The company serves two distinct segments: private single-family home customers (Einfamilienhäuser) and business customers (Businesskunden) including architects, developers, and institutions needing multi-storey residential, commercial, and industrial buildings, plus the proprietary "Intelligent Skins" renovation system for upgrading existing structures to passive house and plus-energy standards.

Product overview

Weissenseer Holz-System-Bau GmbH is a family-owned timber construction company founded in the 1930s, offering a portfolio of sustainable building solutions centered around energy-efficient wood construction. The core offerings consist of single-family homes (Einfamilienhäuser) with individual and modular solutions, and business-to-business services (Businesskunden) including multi-story residential buildings, thermal renovations, and industrial/commercial constructions. The company's proprietary 'Intelligent Skins' are modular building shells that provide highly insulated envelopes for new buildings or energy-positive renovations. All components are manufactured at the company's own WCB-Factory facility, which operates to passive house standards. The company positions itself as a partner to architects, general contractors, and developers, delivering prefabricated timber modules for assembly on-site.

Differentiator

Problem solved

Functional benefit

Brands

• Intelligent Skins: Modular wood building shells for renovation and new construction that provide highly insulated building envelopes meeting passive house standards.
• WCB Factory

Products and services

• Einfamilienhäuser (Single-Family Homes) Individually designed and modular timber construction solutions for private single-family home builders, featuring energy-efficient and ecological building methods. Offered as a complete custom design-build service for private clients.
• Businesskunden (Business Solutions) Sustainable building solutions for business customers including multi-storey residential buildings, thermal renovations, and modular building shells for commercial, industrial, institutional, and office/administrative projects. Delivered as a partner-based service to architects, general contractors, and developers.
• Intelligent Skins Modular wood building shells that can be manufactured separately from the rest of the building and applied to existing structures for thermal renovation, creating energy-positive buildings that meet passive house standards without prejudicing architectural options. Can be installed while buildings remain in use.
• WCB-Factory Production Service Prefabricated timber building modules produced at the company's own WCB-Factory in Greifenburg, Austria. The 2,675 m² production hall manufactures cross-laminated timber modules assembled without thermal bridging at construction sites, with energy supplied via waste heat recovery from production machinery.

Quantifiable outcome

• Mineroom — world's first large-volume passive house in wood construction, housing 200 international students
• +4 more outcomes

Named customers13 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Wiehag: Austrian timber construction specialist delivering engineered timber buildings for commercial, industrial, and public-sector clients across Europe. Closely comparable to Weissenseer in delivering large-format timber structures for institutional and commercial customers, though with more focus on commercial/industrial scale.
• Binderholz: Austrian family-owned timber group producing CLT (BBS), glulam, sawn timber, and prefabricated building components. Most directly comparable to Weissenseer in geography, family-ownership DNA, and the combination of timber products plus engineered building systems, but at significantly greater scale and broader product portfolio.
• Huf Haus: German family-owned manufacturer of prefabricated timber-frame houses (Fachwerk style) for private homeowners. Comparable to Weissenseer's Einfamilienhäuser business in product (prefab timber homes), target customer (private homeowners), and Central European market footprint.
• Baufritz: German prefabricated timber home manufacturer focused on energy-efficient, healthy, sustainable single-family houses. Directly comparable to Weissenseer's private-homeowner business in prefab timber construction and eco/sustainability positioning.
• KLH Massivholz: Austrian manufacturer of large-format cross-laminated timber panels and supplier of CLT-based building systems for residential, commercial, and public projects. Closely comparable in CLT technology and European mid-market project focus.

Broad incumbents

• Hasslacher (HASSLACHER Gruppe): Austrian family-owned timber group producing sawn timber, glulam, CLT, and engineered wood products for European construction. Comparable through Austrian heritage, family ownership, and CLT/mass-timber systems, but at broader scope.
• Mayr-Melnhof Holz: Austrian sawmill and engineered-timber group producing sawn timber, glulam, and cross-laminated timber for construction. Comparable through timber products and Austrian/European market footprint, but operates more as a materials supplier than a turnkey builder.
• Stora Enso: Finnish-Swedian global forest-products incumbent with a CLT and mass-timber building solutions division serving commercial and residential construction across Europe. Comparable through CLT-based modular building systems and sustainability positioning; operates at much greater scale and across more geographies.

Emerging players

• Lignotrend: German manufacturer of cross-laminated timber elements and acoustic timber components for walls, ceilings, and floors. Comparable as a European specialty timber-element supplier, though more focused on interior components than full building envelopes.
• Thoma Holz: Austrian family-owned timber company producing solid wood buildings and components with a focus on healthy, chemical-free construction. Comparable in Austrian heritage, family ownership, and timber-only construction philosophy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/weissenseer
• YouTubeyoutube.com/@weissenseerholz-system-bau7032
• Facebookfacebook.com/weissenseerfactory
• LinkedInlinkedin.com/company/weissenseer-holz-system-bau
• Instagraminstagram.com/weissenseerfactory
• Pinterestat.pinterest.com/weissenseerholzsystembau/_created

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Weissenseer Holz-System-Bau GmbH