Construction & Architecture

Ingenieurbüro K. Lienhard AG Buchs 

Buchs Ag · Since 1974

Ingenieurbüro K. Lienhard AG Buchs provides planning, documentation and maintenance services for water and gas distribution networks. Its activities include GIS-based network documentation, project engineering, leak detection (including a 24-hour service), network inspection and the supply of equipment and products for monitoring, cleaning and disinfection.

Innotronic Ingenieurbüro GmbH 

Dietikon · Since 2009

The core activity of Innotronic Ingenieurbüro GmbH is the development and provision of innovative IT and telecommunications solutions for small and medium-sized businesses. This includes in particular the creation of software applications and support for the implementation of IT systems.

Intra Immobilien und Trading AG 

Vorderthal · Since 1977

The core activity of Intra Immobilien + Trading AG is the rental, construction and sale of real estate, particularly in the field of system construction and eco-module objects.

IP Architektur GmbH 

Lützelflüh-Goldbach · Since 2022

IP Architektur GmbH is an architectural firm offering planning, construction management and consulting for new builds and renovations. The practice works on projects inside and outside building zones and handles single‑ and multi‑family houses, commercial and agricultural buildings, and protected monuments with a focus on preservable structures.

ipas architectes et planificateurs sa 

Neuchâtel · Since 2009

ipas architectes et planificateurs sa is an architectural firm that provides architectural and urban planning services, feasibility studies and general planning for private, public and institutional clients. The firm also uses 3D/BIM tools, coordinates specialist planners and references environmental standards such as Minergie P, Minergie ECO, BREEAM, LEED and HQE.

ipas architectes sa 

Neuchâtel · Since 2010

ipas architectes sa is an architecture practice providing architectural and urban design services to private, public and institutional clients, including feasibility studies and general planning. The firm uses common CAD tools and 3D/BIM workflows and applies environmental standards such as Minergie P, Minergie ECO, BREEAM, LEED and HQE.

Iso4 AG 

Chur · Since 2014

The core activity of Iso4 AG is the provision of services in the field of technical insulation and structural fire protection for new and existing buildings. This includes the planning, implementation and maintenance of insulation solutions for various types of buildings.

Isoltech Sàrl 

Plan-Les-Ouates · Since 2017

Isoltech Sàrl carries out insulation works and provides thermal, acoustic and fire‑stop insulation services. Services include insulation of pipes, ventilation ducts and building elements, including fibre‑ or paste‑based fire‑stop solutions performed in accordance with applicable standards.

ISORESINE SA 

Bioggio · Since 2012

The core activity of Isoresine is the production and application of resin-based pavements and surfaces, including waterproofing, renovation and treatment of concrete. The company also offers customer-specific solutions for indoor and outdoor areas by providing a wide range of colors and designs.

Isotec étanchéité Sàrl 

Conthey · Since 2014

The core activity of Isotec Étanchéité Sàrl consists of carrying out work in the field of building airtightness and insulation, particularly: * Airtightness: Carrying out work to seal roofs, balconies, terraces and other surfaces against water and moisture, including the use of products such as resin and bitumen. * Thermal insulation: Carrying out work to insulate buildings, including the installation of insulation materials and the maintenance of existing insulation. * Roofing: Carrying out work on roofs, including the construction of green roofs, roof maintenance and the removal of moss and other damage. The company also offers an emergency service for urgent cases and is able to intervene within a day.

ISOTECH Zürich AG, Weiningen 

Weiningen Zh · Since 1999

The core activity of ISOTECH Zürich AG includes sealing works and fire protection solutions, in particular: joint sealing, structural fire protection, liquid plastic sealing, Combiflex sealing, crack injection, leak detection and emergency drying, and fire protection (fire stops, fire protection sleeves, claddings). The company also offers innovative solutions for monitoring buildings and works closely with its subsidiary 1A-Bodenbeläge GmbH to provide a comprehensive range of services.

Jaberg Fugen AG 

Bätterkinden · Since 1989

The core activity of Jaberg Fugen AG is the execution of joint sealing works, including the renovation and sealing of joints in various areas such as wet cells, stairs, balconies, terraces, facades, windows, doors and winter gardens. The company also offers cleaning services and optical enhancements.

Jacober Interiors GmbH 

Erlenbach Zh · Since 2016

The core activity of Jacober Interiors is the planning and design of interior spaces for private residential clients in the Zurich region, including space design, furnishing, lighting planning, surface selection, kitchen and bathroom design, as well as minor renovations.

Jaeggi Architekten 

Sempach · Since 2004

Jaeggi Architekten provides architectural and interior design services as well as house analyses and feasibility studies. The firm also handles cost planning, construction management, and projects for new builds, renovations, extensions and work on existing buildings.

Jaer Travaux Sàrl 

Geneva · Since 2019

Jaer Travaux Sàrl is a renovation company carrying out interior and exterior refurbishments for residential and commercial clients. It offers multiple trade services including tiling, plastering, parquet installation, insulation, plumbing, painting, electrical work and wallpapering.

Jäger Zäh Architekten GmbH 

Zurich · Since 2001

The core activity of Jäger Zäh Architekten is the provision of architectural services.

JAN Garten GmbH 

Gümligen · Since 2012

The core activity of jangarten GmbH is the planning, design, maintenance and preservation of gardens. This includes in particular: Garden planning: Design and planning of individual gardens, Garden construction: Implementation of garden projects, including land modeling and construction of garden structures, Garden maintenance: Professional maintenance and care of gardens, Traditional garden craftsmanship: Preservation and restoration of traditional garden structures, such as dry stone walls, arbor paving and underpinned stairs, Garden planting: Selection and planting of plants and trees in gardens, Garden monument preservation: Preservation and maintenance of historic gardens and garden treasures.

Jan SA 

Montherod · Since 1994

The core activity of Jan SA is the provision of services in the field of construction and renovation work, particularly in the following areas: plastering and drywalling (plâtrerie & revêtements à sec), building and plastering (bâtissage & enduits), painting and wall coating (peinture & revêtements muraux), peripheral insulation (isolation périphérique), and fire protection measures and insulation (compartimentage & obturations coupe-feu). The company offers these services particularly for the field of historic buildings and monuments and has many years of experience in this area.

Jardimer, Bojku Blerta 

Aigle · Since 2022

The core activity of Jardimer is to provide services in the field of landscaping and garden maintenance, including: Landscape Design, Outdoor Arrangement, Planting, Masonry, Maintenance, and Fencing. The company thus offers a comprehensive range of services to support customers in designing and maintaining their outdoor spaces.

Jardin Essentiel Sàrl 

Presinge · Since 2019

The core activity of Jardin Essentiel is the planning, implementation and maintenance of outdoor facilities such as gardens, terraces and roof gardens, including the associated masonry and planting work, as well as the maintenance of condominiums.

J&B Urech Hoeltschi AG DIE SCHREINEREI 

Seengen · Since 2013

J&B Urech Hoeltschi AG DIE SCHREINEREI is a carpentry workshop providing woodworking services such as floors, doors, cabinets, windows and interior fittings. The company undertakes projects ranging from small jobs to full interior installations and offers custom solutions.

Jean Barras Sàrl 

Botterens · Since 2024

The core activity of Jean Barras Sàrl is wood construction, particularly in the planning, manufacturing and assembly of wood structures, including: projects, studies and calculations; wood constructions, wood building and prefabrication; renovations, refurbishments and extensions; interior and exterior cladding; balconies, pergolas and terraces; insulation and renovation; stairs, barn doors and sliding doors; sheet metal processing and roofing. The company specializes in the use of wood as a building material and emphasizes collaboration with local suppliers and the use of environmentally friendly materials.

Jenny Bau & Forst GmbH 

Niederbipp · Since 2019

The core activity of JENNY Bau & Forst encompasses various services in the following areas: Transport and Waste Management, Construction and Earthworks, Material Processing, Maintenance and Repair, Forestry, and Blasting Technology. Thus, the company offers a wide range of services in the fields of construction, forestry, and infrastructure.

JFD MACONNERIE SARL 

Matran · Since 2022

The core activity of JFD Maçonnerie is the provision of services in the field of masonry, including: new construction and renovation of houses, renovations of houses from basement to roof, transformations and adaptations of existing buildings, sanitation of buildings, and consulting and planning of construction projects. The company thus offers comprehensive services in the construction industry, from planning to execution.

J. Meyer Strassenbau GmbH 

Diepoldsau · Since 1996

The core activity of J. Meyer Strassenbau GmbH encompasses road and civil engineering, including the construction and renovation of roads and squares, the laying of sewage and meteorological lines, the execution of environmental works and landscaping, as well as the construction of utility lines.

JMG - Paysage J.-M. Gilliand 

Villarsiviriaux · Since 2018

The core activity of JMG-PAYSAGE is gardening and landscaping, particularly the creation and maintenance of green spaces, such as laying turf, planting and removing hedges (e.g. Thuja hedges) and creating individual garden designs.

Johann Loher AG, Montlingen 

Montlingen · Since 1973

The core activity of Joh. Loher AG is construction, including planning and implementation of construction projects, plastering work, renovations and comprehensive solutions for customers.

Jola Construct AG 

Dietikon · Since 2020

Jola Construct AG performs tiling and interior renovation work, including large-format tiles, waterproofing for wet areas and bathroom renovations. The company also provides façade work (natural stone, clinker), terrace paving, glass installations and project planning and management for new-builds and refurbishments.

Jonas Meier GmbH 

Würenlingen · Since 2021

Jonas Meier GmbH provides forestry and garden services, including garden design and maintenance, garden woodworking, forestry work, and firewood processing and delivery. The company also produces wooden products such as benches and table sets, fountains and troughs, and bee hotels.

Jordil Paysagiste, aménagements extérieurs et entretien des espaces verts Sàrl 

Ecoteaux · Since 2021

The core activity of Jordil Paysagiste Sàrl is the creation and maintenance of outdoor spaces, including gardens, terraces, biotopes and other green areas. The specific activities include: design and implementation of outdoor spaces and landscape design; maintenance and care of gardens, trees and plants; construction of terraces, walls, murets and other outdoor structures; creation of lawns, biotopes and other green areas; maintenance and care of lawns, including mowing, scarification and fertilization; planting and care of trees, shrubs and other plants; construction of garden houses, pavilions and other outdoor buildings; and installation of fences, gates and other outdoor facilities.

Jost Pflanzenkulturen AG 

Wiedlisbach · Since 1966

The core activity of Jost Pflanzen AG is the cultivation, production and sale of plants, particularly flowers and garden plants. The company offers a wide range of plants for gardening enthusiasts and professional customers and operates several locations in Switzerland.

Jost Pflanzen AG 

Gerlafingen · Since 1992

Jost Pflanzen AG is a plant-production company that plans, produces and sells potted and ornamental plants. Services include plant finishing and sample arrangements (baskets, bowls, trays), direct sales, and dispatch/transport coordination for customer deliveries.

Joy Facility Management GmbH 

Zurich · Since 2019

Joy Facility Management GmbH is a facility management company specializing in the upkeep and preservation of properties. Services include caretaking, technical service (HLKKS), building management system operation and optimization, maintenance work, cleaning (including offices), garden maintenance, winter services, small repairs, waste removal and small transports, water-damage analysis and repair, construction planning and execution, and a 24/7 on-call service.

J. Uebelmann Gartengestaltung AG 

Malters · Since 2016

The core activity of J. Uebelmann Gartengestaltung AG is the planning, design, construction and maintenance of gardens, including consulting private clients and collaborating with architects on larger construction projects. The specific services include gardening, garden design, garden maintenance, consulting and planning, as well as the installation of wall and floor tiles.

Jung Berger Architekten GmbH 

St. Gallen · Since 2013

The core activity of Jung Berger Architekten GmbH is the planning and realization of architectural projects, particularly in the field of residential construction, including single-family homes, apartment buildings, and extension buildings.

JUNG LADEN- UND GASTROBAU GmbH 

Muri B. Bern · Since 2009

JUNG LADEN- UND GASTROBAU GmbH provides bespoke shopfitting, hospitality construction and carpentry services, executing projects from consultation and design through production and installation. The company works with wood, metal, glass and plastics and handles project coordination and post-completion support.

jutzi gartenbau ag 

Langnau Im Emmental · Since 2010

The core activity of Jutzi Gartenbau AG is the planning, design, implementation and maintenance of gardens and green spaces. This includes in particular: new garden and green space installations, modifications and renovations of existing gardens and green spaces, plantings of all kinds, garden maintenance and care, pruning of garden plants, and grave maintenance. The company also offers consulting and planning services for garden projects and has a warehouse for plants and materials.

K2 Architekten AG 

Basel · Since 2017

The core activity of K2 Architekten AG is the planning, execution and renovation of buildings, particularly residential buildings, multi-family houses, public buildings and commercial buildings. The company offers comprehensive services, from concept development to planning and execution to the completion of construction projects.

Kägi Gartenbau GmbH 

Schmidrüti · Since 2006

The core activity of Kägi Gartenbau GmbH is the planning, construction and maintenance of gardens, including gardening, garden maintenance, greening, complete renovation and lawn care.

KAGO AG 

Goldau · Since 1981

The core activity of KAGO AG is the development, manufacture and delivery of products and services for the rail industry, particularly in the areas of contact clamps, earthing and cable ranges, cable routing and cable fastening, track connection boxes and balise covers, insulation, contact and bird protection as well as special assemblies, personnel leasing and machine leasing.

Kallen Renato Gartenbau und Unterhalt 

Frutigen · Since 2012

The core activity of Kallen Gartenbau is the planning, design and maintenance of gardens, terraces and green spaces. This includes in particular: garden planning: creation of creative ideas and concepts for dream gardens; garden construction: creation and design of gardens and green spaces in harmony with nature; and garden maintenance: maintenance and care of gardens to keep them in an attractive condition at all times. The company also offers additional services such as annual contracts, radio pager rental and gift vouchers.

Kambohr AG 

Flaach · Since 1999

Kambohr AG is a demolition contractor offering concrete drilling and concrete milling services. Their work includes creating door and window openings in walls, removing concrete balconies, and milling and disposing of entire walls.

Kaminfegermeister Jürg Giger 

Hinwil · Since 2002

The company "Kaminfeger Jürg Giger" offers services as a master chimney sweep and heating system controller, particularly the maintenance and inspection of chimneys, tile stoves and other heating systems, as well as the ignition of wood-fired heating systems using a special, environmentally friendly method.

Kanal-Ratte AG 

Altendorf · Since 2008

The core activity of Kanal-Ratte AG is canal cleaning, inspection and maintenance, including the removal of blockages and the testing of canal systems for tightness. The company offers 24/7 emergency services, covering a wide range of services, including: canal cleaning and repair, inspection of canal systems using TV inspection vehicles, tightness testing of canal systems, removal of blockages in sewage pipes, house connections, main drains, downpipes, pump shafts, garage drainage and infiltration systems, and regular maintenance and cleaning of pipes to prevent water damage and blockages.

Karrer Zimmerei 

Röschenz · Since 1996

The core activity of Karrer Zimmerei is carpentry and woodworking, including new constructions, renovations, facades, roofing, staircases, interior fittings and custom-made products.

Kaspar Partner Architekten AG 

Horgen · Since 2011

Kaspar Partner Architekten AG is an architectural firm offering design, planning and project management services for residential, office and public buildings. The firm's project portfolio on the website includes new builds, extensions, conversions and renovations, with work carried through from concept to implementation.

KELER sàrl 

Bernex · Since 2022

The core activity of Keler company is the execution of renovation and construction projects, particularly in the areas of: interior construction and renovation (e.g. painting, plastering, drywalling), flooring (e.g. parquet, tiles), demolition and dismantling work, and facade work (e.g. plastering, facade renovation). The company also offers a wide range of services to support customers in the planning and execution of construction projects.

Keller Bauingenieure AG, Ingenieurbüro für Hoch- und Tiefbau 

Rheinfelden · Since 1980

Keller Bauingenieure AG is a consulting engineering firm specializing in structural engineering. The core activities include planning, construction management and engineering services in building construction and civil engineering, including foundation engineering, earthquake protection, flood protection, rehabilitation and proof of stability. The company also offers complementary services such as vibration measurements and construction project management.

Keller Bauunternehmung AG 

Rheineck · Since 1997

The core activity of Keller Bauunternehmung AG encompasses the execution of construction projects in the following areas: * Building construction (residential buildings, industrial halls, hotels, conversions, renovations) * Civil engineering (excavation work, pipeline construction, sewage systems, retaining walls, forecourts) * Demolition (demolition excavators, concrete demolition, recycling) * Mobile crane work (with various mobile cranes up to 220 tons of lifting capacity) The company thus offers a wide range of construction services and is capable of carrying out complex construction projects from planning to completion.

Keller-MTS AG 

Regensdorf · Since 2007

Keller-MTS AG is a company of the Keller Group that provides specialist geotechnical and foundation engineering services, including ground improvement, piling, injections, anchors and shotcrete. It delivers engineering and construction services for infrastructure, industrial, residential and environmental projects.