Owner's Representative in
St. Gallen

27 companies in Owner's Representative based in St. Gallen — name and year of registration from the commercial register. The list below shows them all.

Companies

All 27 companies in St. Gallen

Mettler Entwickler AG Logo

Mettler Entwickler AG

Since 2003 · 21–50 empl.4.5(20)

The core activity of Mettler Entwickler is the development of real estate projects with sustainable added value. This includes the planning, financing, realization and marketing of living and working spaces that not only meet current needs, but also anticipate tomorrow's wishes. The company develops and implements real estate projects that are well thought out, sustainable and provide tangible added value for all.

Owner's RepresentativeProject developmentFinancingRealisation
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #1
Goldbeck Rhomberg AG Logo

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.

General ContractorsTurnkey Industrial HallsOffice BuildingsParking Garages
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #2
Bruderer Immo AG Logo

Bruderer Immo AG

Since 1969 · 1–10 empl.

The core activity of Bruderer Immo AG is the development, management, administration and sale of real estate, in particular residential properties, in the St. Gallen region and throughout Switzerland. This also includes services such as owner consulting and representation as well as project development.

Owner's RepresentativeProperty management & administrationSale of propertiesClient advisory / client representation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
Urs Zangerl AG Logo

Urs Zangerl AG

Since 1984 · 1–10 empl.

The core activity of Urs Zangerl AG is the provision of services in the field of construction management, owner consulting and owner representation, particularly for administrations and property owners in Eastern Switzerland and the Zurich region.

Architecture FirmsClient advisory – Client representationConstruction management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
bauer Baumanagement AG Logo

bauer Baumanagement AG

Since 2000 · 1–10 empl.

bauer Baumanagement AG provides project and construction management services for new builds and renovations in the building sector, coordinating planning, tendering, cost control and schedule monitoring. Services also include client representation (Bauherrenvertretung), advisory work and technical analyses/expert reports.

Owner's RepresentativeClient representationConstruction managementProject management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
Archplan AG Logo

Archplan AG

Since 2001 · 21–50 empl.4.8(5)

Archplan AG is an architecture firm that provides architectural services from design through to project handover. The practice participates in competitions and studies, undertakes renovations and conversions, uses Building Information Modeling (BIM), and emphasizes resource-efficient materials and cost-conscious project planning.

Architecture FirmsArchitectural planningCompetitions and studies
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #6
Hitz AG Bauherrenkompetenz Logo

Hitz AG Bauherrenkompetenz

Since 2005 · 1–10 empl.

The core activity of Hitz AG is the consulting and representation of property developers in real estate projects, including process design, project development, real estate economics and architecture. The company offers comprehensive services, from needs analysis to successful project completion, and places emphasis on sustainable project development.

Owner's RepresentativeClient advisory & client representationDevelopment and strategyReal estate economics
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #7
Gantenbein + Partner AG Logo

Gantenbein + Partner AG

Since 2011 · 11–20 empl.

Gantenbein + Partner AG is a construction management and project delivery firm that plans, coordinates and supervises building projects. Its services include project management and development, construction supervision, general planning, construction management, renovations and construction economics.

Owner's RepresentativeConstruction ManagementConstruction Site ManagementProject Management and Development
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #8
bauer Projektmanagement AG Logo

bauer Projektmanagement AG

Since 2014 · 11–20 empl.

bauer Projektmanagement AG is a company providing construction project management and site management services in the building sector. Services include project leadership, construction management through turnkey handover, owner representation/owner’s trustee services, tendering and cost control, as well as property analyses and expert reports.

Owner's RepresentativeConstruction project managementOwner representation / owner trusteeshipConstruction management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #9
Swiss Baumanagement AG Logo

Swiss Baumanagement AG

Since 2015 · 1–10 empl.4.4(8)

Swiss Baumanagement AG provides project planning, execution planning and construction management services for residential and commercial building projects. Services include feasibility studies, cost control, client representation, project coordination and warranty management.

Owner's RepresentativeClient representationClient consultingConstruction management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #10
Bauatelier Schwartz AG Logo

Bauatelier Schwartz AG

Since 2018 · 1–10 empl.

The core activity of Bauatelier Schwartz AG is the planning, design and construction management of building projects, particularly in the area of residential and commercial properties, such as single-family homes, multi-family homes, commercial properties and renovations.

Owner's RepresentativeClient representationConstruction site managementProject management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #11
Basler & Hofmann AG Logo

Basler & Hofmann AG

Since 2021 · 101–500 empl.

Basler & Hofmann AG is a multidisciplinary engineering and planning firm that provides consulting, design and project engineering services for buildings, energy, environment, mobility and transport infrastructure, and publishes digital tools such as the Stratus portfolio management software.

Owner's RepresentativeBuilding owner advisorySustainable development of buildings, sites and portfoliosSite and land development
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #12
Gruner AG Logo

Gruner AG

Since 2021 · 21–50 empl.4.1(7)

Gruner AG is an independent engineering consultancy providing planning and engineering services. It delivers comprehensive services across building construction, infrastructure and energy projects, including structural design, geotechnical engineering, building services design, energy production and distribution, transport infrastructure, environment and safety engineering, and spatial planning.

Owner's RepresentativeInfrastructure constructionBuilding construction
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #13
ihrBAUmanager GmbH Logo

ihrBAUmanager GmbH

Since 2017 · 1–10 empl.

The core activity of the company "ihrBAUmanager GmbH" is the provision of services in the field of construction management, including overall management, cost planning and construction management, as well as partnership with architects.

Construction & Project ManagementConstruction managementProject and construction managementWork package tendering
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #14
Baumed Bauleitungen AG Logo

Baumed Bauleitungen AG

Since 2019 · 1–10 empl.5.0(4)

Baumed Bauleitungen AG is a construction management firm providing project and site management and related services for building works. Services include tendering and specifications, cost management, scheduling, refurbishment and new-build site management, heritage restoration, defect expertise, owner advisory, public procurement support and overall project leadership.

Construction & Project ManagementProject and construction managementClient advisoryTendering and bill of quantities
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #15
Dafema AG Logo

Dafema AG

Since 2005 · 11–20 empl.3.1(53)

The core activity of DAFEMA AG is the rental, sale and management of real estate, including related services such as real estate management, real estate trust, renovation and refurbishment.

Owner's RepresentativeProperty managementReal estate trustee servicesRenovation and refurbishment
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #16
Eberhard Baukultur GmbH Logo

Eberhard Baukultur GmbH

Since 2023 · 1–10 empl.

The core activity of Eberhard Baukultur GmbH is the preservation of historical monuments, construction consulting, project development and research in the field of building culture, particularly in the handling of existing buildings and historical monuments. The activities include, among others: * Monument preservation analyses and expert opinions * Project development and support in existing buildings * Construction consulting and client representation * Research projects and publications on architecture and building culture * Moderation and editing of events and publications * Urban planning and building historical documentation The company thus offers a comprehensive range of services in the field of building culture and monument preservation.

Owner's RepresentativeClient advisoryClient representationConservation assessments
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #17
Bureau René GmbH Logo

Bureau René GmbH

Since 2023 · 1–10 empl.

Bureau René GmbH provides property management services and acts as client representation for construction projects.

Owner's RepresentativeProperty managementClient representation
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #18
SILCC GmbH Logo

SILCC GmbH

Since 2023 · 1–10 empl.

SILCC GmbH provides the “Smart Immo Life Cycle Concept”, conducting periodic building-component and structural condition assessments and producing customised maintenance and renewal plans to support long-term investment planning. The company also develops architectural solutions and performs architectural design and construction management for conversions, renovations and extensions.

Architecture FirmsProperty and building component inspectionMaintenance and renewal conceptsArchitecture and construction management
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #19
Mahr Baumanagement GmbH Logo

Mahr Baumanagement GmbH

Since 2023 · 1–10 empl.

Mahr Baumanagement GmbH provides construction management and site supervision services and supports clients throughout the construction and planning process. Services include tendering and bid comparison, contract management, scheduling, cost control, construction accounting, project leadership and client representation.

Construction & Project ManagementConstruction management and project managementClient representationMaster planning
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #20
Appert Hanselmann AG Logo

Appert Hanselmann AG

Since 2013 · 11–20 empl.3.0(1)

The core activity of Appert Hanselmann AG is construction management, in particular general contracting and overall project management of construction projects of all kinds, including laboratory and clean rooms, hotels, data centers, residential buildings, high-rise buildings, shopping centers, logistics centers, garage operations, industrial and office buildings, gas stations and stadiums. In doing so, the company takes over all processes in construction, from development and planning to construction management, project management and client representation.

Owner's Representative
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #21
kaiserreich GmbH Logo

kaiserreich GmbH

Since 2023 · 1–10 empl.

kaiserreich GmbH provides client representation and advisory services in corporate architecture and building project navigation. Services include workshops, concept planning and guidance for new-build, renovation and expansion projects using a structured Corporate Architecture System to align buildings with organisational objectives.

Construction & Project ManagementClient AdvisoryCorporate Architecture SystemWorkshop
No score yet
bbvfischer gmbh Logo

bbvfischer gmbh

Since 2023 · 1–10 empl.

The core activity of bbvfischer GmbH is owner representation, i.e. advising, accompanying and representing building owners in the development, planning and execution of real estate projects. This includes, in particular, the development of sustainable potential analyses, the organization and implementation of variant procedures, the selection of planners, authority management and project management.

Owner's RepresentativeClient advisory servicesClient project supportClient representation
No score yet
Berger Bauleitung und Projektentwicklung GmbH Logo

Berger Bauleitung und Projektentwicklung GmbH

Since 2025 · 1–10 empl.

Berger Bauleitung und Projektentwicklung GmbH provides construction management and project development services for building projects. The company supports projects in close cooperation with clients, planners and tradespeople, with a focus on the realisation of sustainable projects.

Construction & Project ManagementConstruction managementProject development
No score yet
EI

Erag Immobilien AG

Since 1985 · 1–10 empl.

Construction & Project Management
No score yet
RA

Roefs Architektur + Baumanagement GmbH

Since 2012 · 1–10 empl.

Architecture Firms
No score yet
PG

PAHE GmbH

Since 2024 · 1–10 empl.

Coaching & Personal Development
No score yet

Owner's Representative in St. Gallen

27Owner's RepresentativeCommercial register (Zefix) · as of October 10, 2026
2015Median year of registrationCommercial register (Zefix) · as of October 10, 2026
129in the Canton of St. GallenCommercial register (Zefix) · as of October 10, 2026
1,399in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Owner's Representative in the region

Point size by number of companies per place.

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

Largest places

Wil SG10Widnau7Jona6