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64'949 companies found

Ingenieurbüro Gujer AG

Rümlang · Since 1998

The core activity of Gujer AG includes engineering services and services in the field of construction and infrastructure, particularly: * Civil engineering and infrastructure (deep and road construction, sewer and pipeline construction, hydraulic engineering, concrete renovation) * Wastewater treatment and purification * Drinking water supply (drinking water intake plants, reservoir construction, general planning) * Asset management and financial and investment planning * Construction and legal services (building police, QS, fire protection, private control, BUS, neighborhood and design planning) * Surveying and geoinformation * Settlement drainage and general drainage planning. The company thus offers comprehensive services for the planning, implementation and maintenance of infrastructure projects, particularly in the field of water and wastewater.

Civil Engineering Firms

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Ingenieurbüro Zumofen & Glenz AG

Steg Vs · Since 1989

The core activity of Zumofen & Glenz AG is the provision of engineering services in the field of civil engineering, including road construction, bridge construction, infrastructure works, reinforced concrete construction, statics, pipeline construction and project surveying, as well as the creation of digital terrain models using drones.

Civil Engineering Firms

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ingenta ag

Bern · Since 1988

ingenta ag is an engineering and planning firm providing structural engineering and design services for building construction, civil/infrastructure projects and constructive engineering. Its services also include project management, BIM applications and seismic safety assessments and expert reports.

Civil Engineering Firms

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IngPhi SA

Lausanne · Since 2004

IngPhi SA is a civil engineering office specialised in the structural design of bridges, buildings and infrastructure. The office also conducts research and development (including numerical simulations, BIM workflows and fibre‑reinforced concrete topics) and operates in multidisciplinary teams with architects, geotechnical engineers and façade specialists.

Civil Engineering

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InnoPlan Grogg GmbH

Spiez · Since 2007

The core activity of InnoPlan Grogg GmbH is the provision of architectural and solar planning services, including renovations, new constructions and solar installations. The company also offers additional services such as garden planning, construction management and maintenance.

Architecture FirmsSolar & Photovoltaics

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Innowat Montagen GmbH

Neuenhof · Since 2006

The core activity of Innowat Montagen GmbH is the planning, installation and realization of shower partitions and hygiene protection walls, particularly in sanitary installations. The company offers a wide range of design options and supports customers in implementing their individual projects.

Interior ConstructionSpecialized Construction Activities

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Integrale Generalplaner AG

Zurich · Since 2014

Integrale Generalplaner AG is an architecture firm focused on people-centred design for healthcare, research and education. The company also plans research buildings, workspaces, cultural buildings and security architecture, with an emphasis on modular and sustainable solutions.

Construction & Project Management

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IPSA Isolations SA

Ecublens Vd · Since 1993

The core activity of IPSA Isolations SA consists of carrying out insulation work for technical installations, including: thermal insulation, sound insulation, fire insulation and anti-condensation insulation. The company offers these services for various types of technical installations to reduce energy losses, minimize noise pollution and prevent fire damage.

Sealing & Insulation

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Islikers Baukunst GmbH

Leuggern · Since 2023

The core activity of Islikers Baukunst GmbH is the execution of various construction services, particularly: Ceramic floor tiles, Mosaic, Silicone joints, Bathroom renovations, Plastering, Masonry, Repairs, Renovations, and Conversions, with a focus on bathroom conversions.

Specialized Construction Activities

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Isoflex AG

Zurich · Since 1977

The core activity of Isoflex AG is the execution of joint sealing and fire protection measures in the construction industry. This includes, in particular, the sealing of joints and the installation of fire protection systems in buildings, such as hotels, hospitals, high-rise buildings and industrial areas.

Building MaintenanceSealing & Insulation

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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.