General Contractors in
Schaffhausen

23 companies in General Contractors based in Schaffhausen — name and year of registration from the commercial register. The list below shows them all.

Companies

All 23 companies in Schaffhausen

Wepfer Bauprojekte GmbH Logo

Wepfer Bauprojekte GmbH

Since 2024 · 1–10 empl.4.9(31)

The core activity of Wepfer Bauprojekte GmbH is the execution of construction projects, conversions and renovations, including planning, consulting, implementation and management. The company offers comprehensive solutions for new buildings, facade work, interior design and other construction-related services.

Construction & Project ManagementGeneral contractorConversions & renovationMasonry and structural work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
Walo Bertschinger AG Logo

Walo Bertschinger AG

Since 1957 · 51–100 empl.

Walo Bertschinger AG is a construction company operating across construction markets as a general contractor, offering services such as road and civil engineering, rail construction, water engineering, building construction, concrete repair, flooring systems and material processing.

Civil EngineeringRoad and civil engineeringWater engineeringLandfill construction & contaminated site remediation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
Osak Immobilien & Haustechnik AG Logo

Osak Immobilien & Haustechnik AG

Since 2018 · 1–10 empl.

Osak Immobilien & Haustechnik AG specialises in heating, sanitary and ventilation systems as well as the purchase, sale and rental of real estate. The company provides building-services planning, installation, renovation and maintenance, and supports property transactions.

General ContractorsProperty brokerageBuilding services planningHeating system installation and renovation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
Genu Partner AG Logo

Genu Partner AG

Since 2008 · 11–20 empl.4.1(18)

The company provides comprehensive solutions for new and renovation construction projects, including project development, construction management, construction trust, planning and realization of residential buildings, commercial and office complexes, as well as public buildings. It combines owner-focused thinking with a comprehensive range of services, from investment idea to planning and realization to complete marketing.

General ContractorsComprehensive solutions for new-build and conversionsGeneral planning and total service providerConstruction management and client representation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
Ulmer Ledergerber Architekten AG Logo

Ulmer Ledergerber Architekten AG

Since 2009 · 1–10 empl.5.0(6)

The core activity of Ulmer Ledergerber Architekten AG is the provision of architectural services.

Architecture FirmsArchitectural services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
s+p Schmid Partner AG Logo

s+p Schmid Partner AG

Since 1973 · 1–10 empl.3.2(9)

s+p Schmid Partner AG is an architecture and construction consultancy offering planning, project development and realization services for renovations, conversions and new buildings. Services include feasibility studies, permit procedures, tendering, construction supervision, cost control and support across all project phases.

Construction & Project ManagementDevelopment and deliveryConstruction consulting
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #6
HQ Architektur GmbH Logo

HQ Architektur GmbH

Since 2018 · 1–10 empl.5.0(1)

The core activity of HQ Architektur GmbH is the provision of architectural services.

Architecture FirmsArchitectural services
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #7
Oettli-Haus AG Logo

Oettli-Haus AG

Since 1976 · 1–10 empl.

Oettli-Haus AG is a general contractor in the real estate sector that plans, constructs and markets primarily residential buildings. The company also provides services for property sales and rentals.

General ContractorsReal estate brokerageRental of real estatePlanning and construction of residential buildings
No score yet
Quadraplan AG Logo

Quadraplan AG

Since 2009 · 11–20 empl.

The core activity of Quadraplan AG is the planning and realization of high-rise buildings as a general contractor, including contract negotiation, planning and complete implementation of construction projects.

General ContractorsGeneral contractor
No score yet
HH

HFG Hausbau AG

Since 1997 · 1–10 empl.

Building Construction
No score yet
AT

ASCORE Technologies AG

Since 2002 · 1–10 empl.

General Contractors
No score yet
SI

SBI INTERNATIONAL HOLDINGS AG

Since 2004 · 1–10 empl.

General Contractors
No score yet

General Contractors in Schaffhausen

23General ContractorsCommercial register (Zefix) · as of October 10, 2026
2009Median year of registrationCommercial register (Zefix) · as of October 10, 2026
68in the Canton of SchaffhausenCommercial register (Zefix) · as of October 10, 2026
9,216in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

General Contractors in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 10, 2026