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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,378 companies indexed · Last updated: today
DirectoryOwner's Representative

Owner's Representative

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961 companies found

TB Support GmbH Logo

TB Support GmbH 

Daiwil · Since 2024

TB Support GmbH provides services in drywall construction, including planning, quantity take-offs and measurements, tendering/devising and submissions, as well as site supervision and quality assurance. The company also offers back-office support for drywall contractors such as cost calculations and project management.

Construction & Project ManagementOwner's Representative
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tectonica thomas lötscher partner GmbH Logo

tectonica thomas lötscher partner GmbH 

Dietikon · Since 2006

tectonica thomas lötscher partner GmbH provides services in construction project realization and manufacturing technology, including execution of building projects and the production of grinding wheels, dressing tools and other abrasive products.

General ContractorsOwner's Representative
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Terracom AG Logo

Terracom AG 

Bassersdorf · Since 1998

The core activity of Terracom AG is the development and management of real estate projects, particularly in the conception and realization of residential, office and commercial properties, as well as in the rental and management of these objects.

Owner's RepresentativeReal Estate BrokerageReal Estate Project Development
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Thomas Bieri Architektur + Baumanagement Logo

Thomas Bieri Architektur + Baumanagement 

Aeschi So · Since 2022

The core activity of the company 'Thomas Bieri Architektur+Baumanagement' consists of providing architectural services and construction management services, including fiduciary construction supervision and cost control.

Architecture FirmsOwner's Representative
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Thomas Sacchi - baut Utopien Logo

Thomas Sacchi - baut Utopien 

Zurich · Since 2019

The company's core activity is the planning and implementation of construction projects, particularly the development of individual concepts and processes for building construction, taking into account the needs and wishes of future residents and users.

Construction & Project ManagementOwner's Representative
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Thommen Katic AG Logo

Thommen Katic AG 

Wallisellen · Since 2013

The core activity of Thommen Katic AG is the provision of architectural services, particularly in the field of construction. This includes the planning, execution and supervision of construction projects, including new buildings, renovations and expansions of buildings. The company also offers specific services such as construction management, building diagnostics and owner representation.

Architecture FirmsOwner's RepresentativeReal Estate Project Development
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thoracon GmbH Logo

thoracon GmbH 

Oberrieden · Since 2017

thoracon GmbH provides construction consultancy and client representation, supporting project development, construction process planning and construction management. Services include cost management, quality control and assistance throughout construction processes.

Owner's RepresentativeReal Estate Project Development
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TOLTEC SA Logo

TOLTEC SA 

Bernex · Since 2013

The core activity of Toltec SA consists of planning, coordinating and executing construction projects, including project evaluation, partner organization and site monitoring. The company also offers a construction site security solution that enables access control and ensures safety.

General ContractorsOwner's RepresentativeReal Estate Project Development
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tomh gmbh Logo

tomh gmbh 

Trasadingen · Since 2021

The core activity of tomh gmbh consists of the development, planning, realization, management, as well as the purchase and sale of real estate.

Owner's RepresentativeProperty ManagementReal Estate Brokerage
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tomprojekte GmbH Logo

tomprojekte GmbH 

Bern · Since 2010

The company's core activity is providing services in the field of facility management (FM), particularly in the areas of owner support, operations management, service management, and organizational development. The company supports customers in planning, building, and operating properties and infrastructure, with the goal of enabling efficient and productive use. This also includes developing strategies and concepts for operations management, optimizing processes, and implementing digital solutions.

Construction & Project ManagementOwner's Representative
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Topas Baumanagement AG Logo

Topas Baumanagement AG 

Kleinandelfingen · Since 2018

Topas Baumanagement AG provides construction project management services, including quantity surveying (Ausmass), cost estimation (Devisierung), project and site supervision, client advisory and construction administration.

Construction & Project ManagementOwner's Representative
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Torus Baumanagement GmbH Logo

Torus Baumanagement GmbH 

Zumikon · Since 2021

The core activity of Torus Baumanagement is the provision of services in the field of construction management, particularly in construction management, project management, tendering and billing of new buildings, conversions and specifically car wash facilities.

Construction & Project ManagementOwner's Representative
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Totales Baumanagement AG Logo

Totales Baumanagement AG 

Russikon · Since 2009

The core activity of TBM AG (Totales Baumanagement AG) is the provision of services in the field of construction management, particularly in the areas of project management, project and construction management, building inspection, value enhancement and value preservation, as well as real estate valuation.

Construction & Project ManagementOwner's Representative
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TRANSPHERE CONSULT SA Logo

TRANSPHERE CONSULT SA 

Geneva · Since 2012

The core activity of Transphère is to provide services as a Bureau d'Assistance à Maîtrise d'Ouvrage (BAMO), specifically in the delegation of Maîtrise d'ouvrage, i.e. the takeover of tasks and responsibilities for the client (Maître de l'ouvrage). This includes defining needs and programs, organizing tenders for companies and contractors, as well as controlling quality, costs and deadlines within the framework of construction projects.

Owner's Representative
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Travaux intérieurs & extérieurs TIE Sàrl Logo

Travaux intérieurs & extérieurs TIE Sàrl 

Le Mont-Sur-Lausanne · Since 2014

The core activity of T i E sàrl is to provide services in the construction industry, particularly in the planning, execution and supervision of construction projects. This includes, among other things: * Assistant maître d'ouvrage (AMO): Consulting, planning, tendering and supervision of construction projects * Service d'études: Creation of detailed offers and budgets for construction projects * Exécution de travaux: Execution of construction projects, including demolition, insulation, plastering, cement screed, painting and decoration * Rédaction de descriptifs d'appels d'offres: Creation of tender documents for construction projects * Prévention et sécurité: Consulting and supervision in the field of construction site safety and prevention The company thus offers a comprehensive range of services aimed at supporting customers in the planning, execution and supervision of construction projects.

Building ConstructionBuilding MaintenanceOwner's Representative
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TS Baumanagement GmbH Logo

TS Baumanagement GmbH 

Chur · Since 2020

TS Baumanagement GmbH provides project and construction management and acts as owner representation and site supervision. Services also include construction consulting, expert analyses and reports, and cost, schedule and quality monitoring.

Owner's Representative
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TUOR Baumanagement AG Logo

TUOR Baumanagement AG 

Bad Ragaz · Since 2008

TUOR Baumanagement AG provides project and construction management and acts as a general planner, offering architecture, interior design and project management services. Additional services include owner's representation, construction consulting, energy assessments (energy certificates, thermographic analyses, PV feasibility studies), tendering according to CRB/NPK/BKP and on-site construction supervision with cost and schedule control.

Architecture FirmsOwner's Representative
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Uphouse Architektur GmbH Logo

Uphouse Architektur GmbH 

Solothurn · Since 2024

Uphouse Architektur GmbH is an architectural firm providing comprehensive planning and construction supervision services for new builds, renovations and conversions. Its services include preliminary design, building-permit and execution plans, building surveys and condition analyses, Minergie projects, 3D visualizations, and site supervision with client advisory.

Architecture FirmsConstruction & Project ManagementOwner's Representative
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Urs Barandun GmbH Logo

Urs Barandun GmbH 

Davos Wiesen · Since 2017

Urs Barandun GmbH provides construction management and site supervision for building and civil engineering projects, together with technical maintenance and systems services such as heating, ventilation, lighting, water treatment, energy monitoring and a 24-hour on-call service including public-pool water disinfection. The company also offers planning for renovations and energy retrofits, bookkeeping services for SMEs, cleaning and hygiene services, and supply of liquefied gas and gas appliances.

Building ConstructionBuilding MaintenanceCivil Engineering
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Urs Oertig Bauplanung GmbH Logo

Urs Oertig Bauplanung GmbH 

Uznach · Since 2014

The core activity of Urs Oertig Bauplanung GmbH is planning and consulting in the field of construction, particularly for new buildings, conversions, renovations and refurbishments of single-family and multi-family homes, industrial and commercial buildings, as well as agricultural buildings.

Architecture FirmsConstruction & Project ManagementOwner's Representative
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.
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