General Contractors in
St. Gallen
82 companies in General Contractors based in St. Gallen — name and year of registration from the commercial register.
50 of 82 companies
Goldbeck Rhomberg AG
Since 2006 · 21–50 empl.5.0(6)
Goldbeck Rhomberg AG delivers systematised, turnkey construction projects for logistics and industrial halls, office buildings, car parks, residential buildings and data centres. The company supports real estate projects across the full lifecycle and also offers parking services.
Filipaj Architektur AG
Since 1976 · 1–10 empl.
The core activity of Filipaj Architektur AG encompasses the planning and construction of real estate for private builders, investors and on its own account, including feasibility studies, land development, project planning, execution and construction management. Additionally, the company offers rental and management services for its own properties.
Morscher AG
Since 1989 · 1–10 empl.
Morscher AG is a construction company providing services in building and civil engineering, including new builds, conversions, renovations, and maintenance. The company carries out projects for private, commercial, and public clients and also offers consulting and construction services.
Forma Architekten AG
Since 1999 · 11–20 empl.5.0(3)
The company's core activity is the provision of banking services.
Gähler Flühler Fankhauser Architekten AG
Since 2000 · 21–50 empl.
The core activity of Gähler Flühler Fankhauser Architekten is the provision of architectural services, including planning, design and implementation of construction projects, with a focus on sustainable and ecological solutions. The company offers all architectural services and phases from a single source, from the design phase to construction management, and works in small teams on projects ranging from urban planning to constructive details.
Markus Alder, Architekten GmbH
Since 2002 · 1–10 empl.
The core activity of Markus Alder Architektur is the provision of architectural services, particularly in the field of age-appropriate building.
Alpen Architekten AG
Since 2010 · 1–10 empl.
Alpen Architekten AG is an architecture firm that designs bespoke building projects and manages implementation phases. Services include execution planning, construction management, acting as general contractor and client advisory.
Schneider Architektur GmbH
Since 2012 · 1–10 empl.
The core activity of Schneider Architektur GmbH is the planning and realization of construction projects, including architecture, design, execution planning and construction management for various types of buildings, such as single-family homes (SFH), multi-family homes (MFH) and senior living facilities.
Senn Construction AG
Since 2013 · 21–50 empl.
Senn Construction AG acts as a total and general contractor for the realization and renovation of residential, commercial and industrial properties. The company manages projects with in-house project and site managers and provides services including land acquisition, development, marketing, sustainability consulting, building services engineering and digital construction.
Rosenblum Baumanagement AG
Since 2015 · 1–10 empl.
The core activity of Rosenblum Baumanagement is construction management, including project optimization, construction management and architecture, with the company specializing in the coordination and execution of construction projects.
besser.bauen ag
Since 2017 · 11–20 empl.
The core activity of besser.bauen ag is the construction and execution of construction projects, particularly in the field of high-rise construction, as an innovative construction company based in St. Gallen.
METTLER PRADER AG, Zweigniederlassung St. Gallen
Since 2017 · 11–20 empl.
METTLER PRADER AG, Zweigniederlassung St. Gallen provides construction and civil engineering services across building construction, earthworks/engineering works and road construction. The company’s website lists services such as drilling and milling, demolition, earth- and waterworks and pavement/infrastructure works, and notes the branch is part of the ZINDEL GRUPPE.
multistudio GmbH
Since 2023 · 1–10 empl.5.0(12)
multistudio GmbH develops architectural and interior design concepts and supports projects from concept through planning to execution. The firm combines building planning and interior architecture and collaborates with by marei on furnishing and fit-out concepts where appropriate.
Bata Immo GmbH
Since 2017 · 1–10 empl.
The core activity of Bata Immo GmbH encompasses the construction, purchase, management and sale of properties, including: Real estate management: acquisition, maintenance, renovation and property management of properties; Construction projects: planning, execution and brokerage of building projects of all kinds as general and total contractor; Purchase and sale: brokerage of real estate and properties for private individuals and companies.
BAB Architekten AG
Since 1998 · 1–10 empl.5.0(3)
The core activity of BAB Architekten AG is the provision of architectural and construction management services, including design, planning, construction and fitting out of buildings and spaces.
Jeannette Geissmann Architektur GmbH
Since 2015 · 21–50 empl.5.0(3)
The company's core activity is the planning and realization of architectural projects, including new buildings, conversions, renovations and refurbishments of buildings and facilities, such as residential houses, office buildings, schools, museums, train stations, restaurants and other public and private institutions.
Halter AG, Zweigniederlassung St. Gallen
Since 2019 · 21–50 empl.5.0(1)
Halter AG, Zweigniederlassung St. Gallen provides design‑build construction services as well as real‑estate development and investment activities. Offerings include design‑build for new construction and renovations, urban planning and architecture, property acquisition and capital investments; projects are planned and executed using digital building models (BIM) and integrated information management.
BPA Immo GmbH
Since 2019 · 1–10 empl.
BPA Immo GmbH is an engineering office for planning and execution that designs and supervises structural and infrastructure projects. Services listed on the website include reinforced concrete for buildings, steel construction, excavation, bridge and water engineering, road and sewer works, construction management and expert assessments.
K + K Fassaden AG
Since 1991 · 1–10 empl.4.7(6)
The core activity of K&K Fassaden AG is the planning and execution of ventilated facade claddings for new buildings, renovations and refurbishments.
Renowell AG
Since 1999 · 11–20 empl.5.0(1)
The core activity of VirtuellBau AG is the provision of comprehensive construction services, including new construction, renovation, renovation, timber construction, roofing and facade work, electrical engineering, heating and plumbing, as well as the planning and coordination of construction projects. The company offers a wide range of services to support customers in the realization of their construction projects, from planning to execution.
Philipp Koller Architektur GmbH
Since 2020 · 1–10 empl.
The core activity of Philipp Koller Architektur GmbH is the provision of architectural services.
Rhomberg Bau AG
Since 2005 · 500+ empl.2.6(13)
The company is active in the field of timber construction and offers solutions for building construction and infrastructure. It develops and implements sustainable projects, products and services, with a focus on ecological, social and economic sustainability.
NIRMO AG
Since 2012 · 11–20 empl.4.0(1)
The core activity of NIRMO AG is the general contracting for renovation of old buildings, new construction and conversion of single-family and multi-family homes as well as commercial buildings in Eastern Switzerland, including land acquisition, planning, design and implementation.
BAUWIWO AG
Since 2022 · 1–10 empl.
BAUWIWO AG is a general contractor that plans and executes construction projects and provides related services. Its offerings include construction and planning (structural and civil works, architecture, site management), renovation and refurbishment, property management, and financing services through affiliated units.
Graf AG General- / Totalunternehmung
Since 1984 · 11–20 empl.5.0(1)
The core activity of Graf AG is the planning and construction of multi-family homes and overbuildings, particularly in the field of residential construction.
Finger Hutter Architekten gmbh
Since 2008 · 1–10 empl.5.0(2)
The core activity of Finger Hutter Architekten is the provision of architectural services, including planning, design and implementation of construction projects. The company offers its services in the fields of architecture, construction and spatial planning, and has an experienced team of architects and specialists who have specialized in the design and implementation of construction projects.
Roth und Hautle Holzbau GmbH
Since 2006 · 1–10 empl.5.0(1)
The core activity of Roth and Hautle Holzbau GmbH is timber construction, particularly carpentry and joinery work, including element construction, interior finishing, façade construction, terrace construction, conversions, window and door construction, as well as planning and construction management.
motivo immo ag
Since 2018 · 1–10 empl.3.3(7)
motivo immo ag is a construction services company specializing in construction consulting, planning and realisation. It provides project management and site management, general planning, cost planning and total contracting, and works on residential, office, industrial, commercial, special building and renovation projects.
Baukla AG
Since 1984 · 11–20 empl.1.0(1)
The core activity of Baukla Generalunternehmung AG is the planning and execution of construction projects as a general contractor, particularly in the area of residential buildings, office buildings and public buildings, as well as the development of real estate and land.
ReGall Generalunternehmen AG
Since 2016 · 1–10 empl.
ReGall Generalunternehmen AG is a professional general contractor specializing in the realization of buildings of various types. The company provides services across the full construction cycle, including planning, new construction, renovations, and maintenance and repairs.
AT-Baumanagement GmbH
Since 2020 · 1–10 empl.
AT-Baumanagement GmbH provides consulting and implementation services in building and energy technology, focusing on heat pumps, photovoltaic systems and energy-efficient windows. The company handles planning, installation coordination, after-sales service and assistance with subsidy applications, working with local installers.
Hoti-S GmbH
Since 2022 · 1–10 empl.
Hoti-S GmbH is a construction company offering building services and formwork work. Its services include formwork for walls and ceilings, foundations and structural shell (raw) work for residential, commercial and industrial projects.
EVOX Bau GmbH
Since 2025 · 1–10 empl.
EVOX Bau GmbH is a construction company offering a range of building and trade services, including demolition and renovation, heating/ventilation/sanitary (HVAC/plumbing) installations, roofing and façade work, and interior finishing.
Ehoch1 Design House AG
Since 2025 · 1–10 empl.
Ehoch1 Design House AG is an architecture firm that provides architectural and planning services according to SIA standards. The company designs individual, tailor-made buildings and supports projects from the first concept through to completion.
Sulser Immo AG
Since 1968 · 1–10 empl.
Proma Immobilien AG
Since 2005 · 1–10 empl.
Sinowa GmbH
Since 2014 · 1–10 empl.
Sinowa GmbH is a construction and plastering company. The firm operates also as a general contractor and provides services including drywall and plastering, painting, floor coverings, façades and insulation, renovation and remodeling work, building maintenance, metal construction and cleaning.
ADZ Immobilien & Bau AG
Since 2020 · 1–10 empl.
The core activity of ADZ Immobilien und Bau AG encompasses the planning, realization, and management of real estate projects, including: new constructions (including project development), renovation and refurbishment works, civil engineering and construction works, as well as general contractor and construction services. The company provides its customers with comprehensive support from planning to completion of real estate projects.
Probauteam AG St. Gallen
Since 1969 · 1–10 empl.
Wealth Immobilien AG
Since 1981 · 1–10 empl.
ALBAN GEORGY Generalbauunternehmung
Since 1999 · 1–10 empl.
Redway AG
Since 2001 · 1–10 empl.
Graf Generalunternehmung/Totalunternehmung
Since 2002 · 1–10 empl.
Widmer Architekten AG
Since 2005 · 1–10 empl.
IMOBO GMBH IMMOBILIEN + GENERALUNTERNEHMUNG
Since 2007 · 1–10 empl.
Zumax AG
Since 2008 · 1–10 empl.
Building and Behaviour GmbH
Since 2011 · 1–10 empl.
Lederbach AG
Since 2013 · 1–10 empl.
Spatium Immobilien AG
Since 2013 · 1–10 empl.
BHB Hausplan GmbH
Since 2016 · 1–10 empl.
General Contractors in St. Gallen
General Contractors in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 11, 2026
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