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48'043 companies found

Telestrom AG

Entlebuch · Since 1992

The core activity of Telestrom AG includes the planning, installation and maintenance of electrical and telecommunication systems, including: electrical installations, telecommunication services, lighting, telephony, building automation, security technology, and mobile phone systems. The company thus offers comprehensive solutions for the electrical and telecommunication equipment of buildings and facilities.

Electrical Planning & InstallationTelecommunications

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Terzini.ch & Partner GmbH

Lupfig · Since 2017

The core activity of Terzini.ch & Partner GmbH is the provision of services in the field of sanitary, heating and solar, including: repair and replacement of fittings, ceramic appliances, pipes and boilers; leak detection and pipe search in residential and commercial properties; boiler cleaning; and replacement of sewage pipes. The company offers these services in the regions of Aargau, Basel, Zurich and Zug.

Plumbing & Building Services

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TF Metal Sagl

Aranno · Since 2024

TF Metal Sagl is a company active in metal construction as well as maintenance and repair work. Its services include work on doors, windows, locks, shutters, gates, canopies, sealing tasks, and custom-made metal structures.

Specialized Construction Installations

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Thäler Heizungstechnik AG

Herzogenbuchsee · Since 2019

Thäler Heizungstechnik AG provides consulting, planning and implementation services in heating technology. The company works on heat pumps, oil, gas, pellet and wood heating systems, district heating networks and heating renovations.

Plumbing & Building Services

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Thomas Aregger Bedachungen

Zurich · Since 1995

The core activity of Aregger Bedachungen is the provision of services in the field of roof maintenance, particularly in the installation and maintenance of fall protection systems, sheet metal work and other related services. The company also offers a 24-hour emergency service to support customers with urgent roofing problems.

RoofingSheet Metal Work

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Thomas Gander

Gebenstorf · Since 2005

The core activity of Sanitär Gander is the planning, installation, repair and maintenance of sanitary facilities, particularly in the areas of bathrooms, kitchens, laundry rooms and heating systems. The company also offers services such as pipe repair, clog removal and renovations.

Plumbing & Building Services

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TIG Tôlerie Industrielle de la Gruyère SA

Bulle · Since 2003

The core activity of Tôlerie Industrielle de la Gruyère SA (TIG SA) is the processing of metals in the form of sheets, particularly through metalworking, and the provision of services in the field of metal processing, including: Design and development of metal products, manufacture of bodies and chassis for machines, mechanical processing and welding, CNC machining (computer-controlled milling and drilling), laser marking, CNC folding (computer-controlled bending), rolling, and assembly. The company thus offers a comprehensive range of services in the field of metal processing and positions itself as a 'creator of customized metal solutions'.

Metal Construction

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TI POSA Sagl

Locarno · Since 2012

The core activity of Tiposa is the planning, design and execution of interior and exterior spaces, including the installation of flooring such as parquet, LVT, cork and bamboo, as well as the installation of wellness facilities like saunas, steam baths and pools. Additionally, the company also offers the planning and execution of outdoor facilities such as pergolas, terraces and similar installations.

Flooring & Tiling

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Tomasetti AG

Basel · Since 1983

Tomasetti AG designs and installs heating and building services systems and provides planning, project management, installation and maintenance. The company offers energy consulting including an Impulsberatung for heating replacement, evaluates technical and economic options, and implements renewable systems (solar, pellets, heat pumps) as well as heat distribution solutions such as underfloor heating and radiators.

Technical Consulting & EngineeringPlumbing & Building Services

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Toni Gisler AG

Erstfeld · Since 1986

The core activity of Toni Gisler is the planning and execution of work in the field of building envelopes, particularly: pitched and flat roofs, facade cladding, roof windows, thermal insulation, sheet metal work, scaffolding, and the installation of solar systems. The company thus offers a comprehensive range of services in the construction industry, particularly in the field of roofing and facade work.

Roofing

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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.