Ingenieurbüro Wirth Haker

What Ingenieurbüro Wirth Haker does

Ingenieurbüro Wirth Haker is a sole-proprietorship structural engineering firm (Tragwerksplanung) based in Freiburg im Breisgau, Germany, specializing in timber construction (Holzbau) for buildings, bridges, and towers across the Baden-Württemberg and broader DACH region. With approximately five employees led by Inhaber Johann Haker, the firm provides planning, calculation, and design of load-bearing structures across residential, public-sector, commercial/industrial, and infrastructure projects, with documented expertise spanning cross-laminated timber (CLT/Brettsperrholz), timber-frame (Holzrahmenbau), hybrid timber-steel-concrete systems, heritage rehabilitation (Bauen im Bestand), and long-span timber bridges. The portfolio includes several first-of-kind technical achievements — one of Germany's first Gebäudeklasse 5 solid timber buildings (Baugruppe Futur 2), the first German structural use of Accoya glulam (Krähennest Lahr 2018), the first BauBuche public-building application (Forstamt Freiburg), and structural reconstruction of Frankfurt's Goetheturm — supported by recognized awards including Holzpreis Baden-Württemberg 2022 and Hugo-Häring-Auszeichnung 2021.

The firm operates as a professional services practice on a project-by-project basis, serving architects, municipalities, housing cooperatives (Baugruppen), private developers, and commercial/industrial clients. Three identifiable verticals are addressed: public-sector/municipal buildings (schools, kindergartens, town halls, community centers), residential/housing-cooperative multi-family developments, and commercial/industrial production halls and office buildings. Acquisition occurs through direct architect and developer relationships, municipal tender processes, and competition entries; pricing is not publicly disclosed but is consistent with standard German B2B engineering-fee arrangements quoted per project. Marketing is primarily portfolio-driven, with the website as showcase and industry awards as professional credibility signals.

There is no evidence of external investment, parent-company ownership, or subsidiary structure; the firm operates as a single-location sole proprietorship after the passing of co-founder/partner Andreas Wirth. Its competitive position rests on a niche specialization in timber structural engineering — increasingly relevant amid Germany's broader shift toward sustainable and timber-based construction — combined with a strong regional brand in the Baden-Württemberg timber-construction community.

Name

Ingenieurbüro Wirth Haker

Legal name

Ingenieurbüro Wirth Haker

Website

https://ing-wh.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Ingenieurbüro Wirth Haker is a five-person structural engineering sole proprietorship in Freiburg im Breisgau, Germany, specializing in timber construction (Tragwerksplanung im Holzbau) for architects, municipalities, housing cooperatives, and developers across the Baden-Württemberg and DACH region.

Ownership category

akta.pro rank

Product category

Structural Engineering Services

NAICS

Architectural Services (541310)

akta.pro primary industry

Mass Timber & Structural Engineered Wood (CLT, Glulam, NLT/DLT) (IMADADAC)

Keywords

• Structural engineering
• Timber construction
• Mass timber design
• Tall timber buildings
• Timber bridge engineering

Headquarters

HQ city

Freiburg im Breisgau

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Others

Core offering

Ingenieurbüro Wirth Haker provides Tragwerksplanung (structural engineering) services for timber construction projects. The firm plans, calculates, and designs load-bearing structures for buildings, bridges, and towers, with a primary specialization in solid timber (CLT/Brettsperrholz), timber frame (Holzrahmenbau), and hybrid timber-steel-concrete construction. Services span new construction and historic rehabilitation across public, residential, commercial, and industrial sectors in the DACH region.

Product overview

Ingenieurbüro Wirth Haker is a structural engineering firm from Freiburg im Breisgau, Germany, offering comprehensive Tragwerksplanung (structural engineering) services with a specialty in Holzbau (timber construction). Their portfolio encompasses Hochbau (building construction) for public buildings, residential housing, industrial buildings, and renovation projects; Ingenieurbau (civil engineering structures) including towers and bridges; and participation in architecture competitions. The firm does not offer software products but provides engineering expertise for construction projects, with timber construction as their defining specialty and passion.

Differentiator

Problem solved

Functional benefit

Products and services

• Tragwerksplanung (Structural Engineering Services) Comprehensive structural engineering services including planning, calculation, and design of load-bearing structures for construction projects. Provided for architects, municipalities, developers, and housing cooperatives across the DACH region.
• Holzbau (Timber Construction Engineering) Specialized timber construction engineering covering solid timber (CLT/Brettsperrholz), timber frame (Holzrahmenbau), glulam (Brettschichtholz), BauBuche, and Accoya timber structures. The firm's defining specialty and passion.
• Hochbau (Building Construction Engineering) Structural engineering for buildings including public buildings (Öffentliche Bauten), residential housing (Wohnungsbau), industrial buildings (Industriebau), and additions/renovations within existing structures (Bauen im Bestand).
• Ingenieurbau (Civil Engineering Structures) Structural engineering for civil infrastructure including towers (Türme) and bridges (Brücken), with specialized timber engineering expertise for observation towers, glulam bridges, and pedestrian/cycle bridges.
• Wettbewerbe (Architecture Competition Entries) Participation in architectural and engineering design competitions, contributing structural engineering concepts and solutions for new construction and infrastructure projects.

Quantifiable outcome

• Multiple award-winning projects including Holzpreis Baden-Württemberg 2022, Hugo-Häring-Auszeichnung 2021, Architekturpreis Baukultur Schwarzald 2010, and Holzpreis 2006
• +2 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Recent moves6 records

Expansion highlights4 records

Market position

Competitive moat3 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ing-wirth-haker

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Ingenieurbüro Wirth Haker