Specialized Construction Activities in Switzerland

Building services planningBIM & Digital BuildingBIM Coordination & Management

Impuls Plus GmbH

Flawil · Since 2025

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KLARK AG

Landquart · Since 2025

KLARK

FireplacesStovesFireplace inserts

Fisa Société Anonyme de Construction de Fours Industriels

Collombey · Since 1930

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David Grisel-Construction Bois Sàrl

Les Verrières · Since 1950

Timber framing workRoofing workJoinery

Commercial track constructionMachine-assisted track constructionModernisation of railway infrastructure

Rhomberg Sersa Rail AG

Zurich · Since 1952

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René Mathez SA

Satigny · Since 1954

Structural work, masonry and reinforced concreteAlterations and exterior worksCarbonation treatment

Made-to-measure windowsStock windowsAdvice on windows

WEDERFENSTER.CH AG

Balgach · Since 1954

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Norm Aufzüge AG

Frauenkappelen · Since 1957

ElevatorsPassenger elevatorsFreight elevators

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Gobat Génie Civil SA

Courgenay · Since 1958

Civil engineering

Track and subgrade constructionIndustrial sidingsRail welding

Carlo Vanoli AG, Bauunternehmung, Thalwil

Thalwil · Since 1961

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NT Primus AG

Bassersdorf · Since 1961

Illuminated advertisingLetteringWayfinding signage

Diving workSea wallsBoathouses

wasserbau.plus GmbH

Greppen · Since 1961

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4B AG

Hochdorf · Since 1962

WindowsDoorsSliding doors

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Josef Muff AG

Sarmenstorf · Since 1962

Pipeline constructionDistrict heatingTanks and vessels

PaintingCeilingsPlastering

Sarosa SA

Sion · Since 1964

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Galvomag AG

Regensdorf · Since 1964

Tank inspection / tank checkBoiler descalingCathodic corrosion protection

Construction and repair of civil engineering worksPost-tension prestressingSupply and installation of bridge bearings

Freyssinet Suisse SA

Moudon · Since 1964

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Siegenthaler Tankrevisionen AG

Menziken · Since 1965

Tank inspectionsTank refurbishmentsTank room sealing

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Gienger GmbH

Wädenswil · Since 1965

ToolmakingCNC turningCNC milling

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VIDESA SA

Sion · Since 1966

Sanitation worksBuilding serviceRental of mobile toilets

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Agir Aggregat AG

Amsteg · Since 1967

Gravel and sandStructural and special concreteTransport

FencingDoors and gatesVisual and noise protection

John AG Zaunbau

Eiken · Since 1967

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Torisa SA

Riazzino · Since 1967

Sanitary, heating, ventilation and air-conditioning systemsTechnical service and 24h maintenanceRenewable energies

Heating cost allocationWater cost allocationSelf-consumption aggregation

Alfred Aubort S.A.

Bussigny · Since 1969

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Corroprot AG

Illnau · Since 1969

Cathodic corrosion protectionTank installations and tank refurbishmentsHeat pump installation

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Kieswerk Casaccia AG

Casaccia · Since 1969

Gravel and sand tradingTransportMaterial recycling

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Protank AG

Zurich · Since 1969

Tank inspectionInternal tank inspectionTank rehabilitation

Heating and cooling technologyVentilation and climate technologySanitary engineering

Demuth AG

Dättwil Ag · Since 1969

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Realplan AG

Zurich · Since 1970

Refurbishment and modernization of old buildingsVertical extensions, additions and attic conversionProject development and construction planning

Engineering services for energy, infrastructure and environmentIntegrated planning and project structuringClient support and project management

IUB Engineering AG

Bern · Since 1970

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Diethelm Fassadenbau AG

Hermetschwil-Staffeln · Since 1970

Facade constructionSheet metal processingFacade sheets

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Marti AG Basel

Basel · Since 1970

Building constructionConversions and renovationsInfrastructure construction

Core drillingCuttingControlled demolition

Diamantbohr AG

Buchs Ag · Since 1971

Concrete pumpsDry conveyingUHFB production

a3 Betonpumpen AG

Affoltern Am Albis · Since 1971

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Walo Bertschinger AG Ostschweiz

Goldach · Since 1971

Water engineeringRailway construction & rail engineeringRoad & civil engineering

Railway trackCivil engineering

Laurent Membrez SA, succursale de Delémont

Delémont · Since 1971

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Grund- und Tiefbau AG Solothurn

Solothurn · Since 1971

Sheet piling worksSpecial deep constructionSoil mixing methods

Tank inspections and maintenanceRenovation of buried installationsNew tank systems for buried installations

tip top AG Jürg Baumann

Volketswil · Since 1971

SaunaSANARIUM®Infrared heat

Klafs AG

Baar · Since 1972

Hydraulic engineeringDiving workFloating docks

Willy Stäubli Ingenieur AG Unternehmung für Holz- und Wasserbau

Zurich · Since 1972

Road and Civil EngineeringCivil EngineeringRoad Safety & Noise Protection

Walo Bertschinger AG Ostschweiz

Jona · Since 1972