Building contractor in the
Canton of Solothurn

161 companies in Building contractor based in the Canton of Solothurn — name and year of registration from the commercial register.

Companies

50 of 161 companies

Bernasconi Bau AG Logo

Bernasconi Bau AG

Since 2005 · 51–100 empl.4.9(21)

Bernasconi Bau AG is a construction company offering building construction, civil engineering and maintenance services, as well as specialized concrete work (betonArt), and acting as a general contractor to coordinate projects.

Building contractorBuilding constructionCivil engineeringMaintenance of value and renovation
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #1
Galli Schadstoffe AG Logo

Galli Schadstoffe AG

Since 2016 · 51–100 empl.4.5(55)

Galli Schadstoffe AG is a Suva-recognised remediation company that identifies and removes asbestos and other building pollutants and prepares remediation concepts. Its services include material analyses, reporting to Suva, containment of work zones, demolition and removal of contaminated materials, measurement and control during works, compliant disposal and final cleaning.

Building contractorHazardous substance remediation (asbestos and building pollutants)Building protectionPreservation of structures
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #2
solHaus AG Logo

solHaus AG

Since 2013 · 1–10 empl.4.8(39)

solHaus AG provides total and general contracting, architectural services and construction management for residential and commercial buildings. Its services also include planning and carrying out conversions and renovations, as well as property brokerage, sales, management and valuations.

Building contractorTotal contractor | General contractorArchitecture + site managementConversions + refurbishments
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #3
Galli Hoch- und Tiefbau AG Logo

Galli Hoch- und Tiefbau AG

Since 1993 · 51–100 empl.4.5(55)

Galli Hoch- und Tiefbau AG is a construction company carrying out building and civil engineering projects and providing services such as building maintenance, structural protection and remediation of construction-related pollutants. Services include new construction, renovations and demolitions, excavation and trenchless pipeline installation, site development and road surfacing, as well as comprehensive project delivery.

Building contractorBuilding constructionCivil engineeringProperty value maintenance
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #4
Gebr. Jetzer Hoch- und Tiefbau AG Logo

Gebr. Jetzer Hoch- und Tiefbau AG

Since 1996 · 51–100 empl.4.5(34)

The core activity of Gebr. Jetzer AG encompasses various services in the construction sector, particularly: earthworks, road construction, pipeline and drainage construction, hydraulic engineering, water supply, transportation and muck-away services, excavator taxi and suction excavator services. Thus, the company offers a wide range of services in the fields of civil engineering and construction.

Building contractorBuilding constructionCivil engineering and earthworksRoad construction
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #5
Studer Bautechnik AG Logo

Studer Bautechnik AG

Since 1989 · 21–50 empl.4.7(23)

Studer Bautechnik AG provides building and civil engineering services, including structural construction, earthworks and utility/line installation. The company also offers masonry and renovation work, site development and related construction services.

Building contractorBuilding constructionCivil engineeringConstruction service
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #6
Meinbau GmbH Logo

Meinbau GmbH

Since 2018 · 11–20 empl.5.0(21)

Meinbau GmbH is a construction and interior finishing company offering a wide range of services, including: interior finishing and facades, electrical installations, painting and plastering, carpentry, flooring, glazing, sealing, heating installations, underflooring, stonework and ceramics, sun protection, gates, energy expertise, timber construction and roofing. The company also provides planning and project management services, including cost estimates, planning, coordination and project management. Additionally, it maintains partnerships with other companies to offer a comprehensive range of services.

Building contractorRenovation and conversionFull renovationBathroom renovation
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #7
Galli Gesamtleistungen AG Logo

Galli Gesamtleistungen AG

Since 2023 · 51–100 empl.4.5(55)

Galli Gesamtleistungen AG provides total-contractor and turnkey construction services, taking on project management, coordination between planning and execution, and time and cost control. Services include client advisory, construction documentation and technical/economic coordination for residential, industrial/commercial, public and infrastructure projects.

Building contractorTurnkey construction servicesBuilding constructionCivil engineering
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #8
Studer Infrastruktur AG Logo

Studer Infrastruktur AG

Since 2016 · 21–50 empl.4.7(23)

Studer Infrastruktur AG is a construction company that carries out building projects and provides project-related services such as site management, cost estimation and execution. The firm emphasizes craftsmanship, sustainable building and practical, economic solutions for clients during planning and implementation.

Building contractorBuilding constructionCivil engineeringBuilding service
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #9
Paul Fluri AG Logo

Paul Fluri AG

Since 1998 · 11–20 empl.4.9(12)

Paul Fluri AG is a construction company undertaking building, civil engineering and road construction projects. Its services include residential, commercial and industrial construction, concrete construction and renovation, core drilling and concrete cutting, excavation and utility works, bank and stream protection, demolition, and paving and infrastructure works.

Building contractorBuilding constructionCivil engineeringRoad construction
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #10
Lüthi Bauen AG Logo

Lüthi Bauen AG

Since 2007 · 11–20 empl.5.0(5)

The core activity of Lüthi Bauen AG encompasses the provision of services in the construction sector, particularly in the areas of: building construction, civil engineering, demolition, renovation, landscaping, and subflooring. The company thus offers a wide range of construction-related services, from planning and execution of new buildings to renovations, demolition work, and landscaping.

Building contractorBuilding constructionCivil engineering worksDemolition
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #11
Johann Volonté AG Logo

Johann Volonté AG

Since 1974 · 21–50 empl.4.8(12)

Johann Volonté AG is a building and civil engineering contractor. Its services include new construction and renovation of residential, industrial, commercial and agricultural buildings, as well as road and utility construction, drainage, excavation, project design, planning and site supervision.

Building contractorBuilding constructionCivil engineeringCustomer work
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #12
Doreli Bautechnik GmbH Logo

Doreli Bautechnik GmbH

Since 2019 · 1–10 empl.4.8(21)

Doreli Bautechnik GmbH plans and carries out construction projects for residential and commercial buildings, supporting them from the outset. It also supplies, customizes and installs windows and doors.

Building contractorWindowsDoors
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #13
Sterki Bau AG Logo

Sterki Bau AG

Since 1994 · 1–10 empl.4.5(22)

Sterki Bau AG is a building and civil engineering contractor. Its activities include residential, commercial and public buildings, renovation projects and customer service.

Building contractorBuilding constructionCivil engineering
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #14
Eggenschwiler Hoch- und Tiefbau AG Logo

Eggenschwiler Hoch- und Tiefbau AG

Since 2006 · 1–10 empl.4.7(16)

Eggenschwiler Hoch- und Tiefbau AG carries out building and civil engineering work. Its services include new builds, conversions and renovations, demolition, landscaping and paving, utility and road construction, excavation, core drilling, trenchless pipe installation and recycling of construction materials.

Building contractorBuilding construction worksCivil engineering worksLandscaping works
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #15
Schwyzer Bau GmbH Logo

Schwyzer Bau GmbH

Since 2010 · 1–10 empl.5.0(6)

Schwyzer Bau GmbH carries out building and civil engineering work, renovations and alterations. Its services include masonry, concrete repairs, core drilling, utility and surfacing work, as well as planning and assistance with building permits.

Building contractorBuilding construction & extensions/alterationsCivil engineering & road constructionCore drilling
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #16
Karli Jakob GmbH Logo

Karli Jakob GmbH

Since 2017 · 11–20 empl.5.0(8)

Karli Jakob GmbH is a construction company specializing in civil works such as excavation and utility/cable installations, road construction, renovations, site/landscaping works, masonry for clients, and winter services.

Building contractorCivil engineering (underground works)Road constructionMasonry work for clients
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #17
Vogel AG Bauunternehmung Logo

Vogel AG Bauunternehmung

Since 2000 · 1–10 empl.4.9(10)

Vogel AG Bauunternehmung is a construction company specialising in building and civil engineering, including utility construction. Its services include conversions and renovations, repair and masonry work, diamond drilling and milling, and outdoor works.

Building contractorBuilding constructionCivil engineeringSite works
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #18
ValleyHomes GmbH Logo

ValleyHomes GmbH

Since 2022 · 1–10 empl.5.0(20)

The core activity of ValleyHomes GmbH is the planning, realization and marketing of individual wooden houses, particularly in the American style, incorporating local Swiss craft businesses and taking into account the highest quality standards.

Building contractorTimber house constructionSwedish HouseNew England House
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #19
Wernli Bau AG Logo

Wernli Bau AG

Since 2006 · 11–20 empl.5.0(4)

Wernli Bau AG is a construction company carrying out alterations, extensions, refurbishments and renovations. Its services also include core drilling, concrete milling and other concrete and specialist works.

Building contractorAlterations and extensionsRefurbishments and renovationsCore drilling and concrete milling
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #20
Probst Tiefbau GmbH Logo

Probst Tiefbau GmbH

Since 2014 · 1–10 empl.5.0(7)

Probst Tiefbau GmbH is a civil engineering company performing earthworks, utility and road construction, site landscaping, deconstruction and stormwater systems, as well as building-construction related services.

Building contractorCivil engineeringUtility services / road constructionSite works
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #21
G&B Universal-Bau GmbH Logo

G&B Universal-Bau GmbH

Since 2021 · 1–10 empl.5.0(8)

G&B Universal-Bau GmbH is a construction company carrying out building and civil engineering work, masonry, renovations and refurbishments. Its services also include landscaping, flooring, and tile and ceramic work.

Building contractorBuilding construction (above ground)Civil engineering (infrastructure)Masonry work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #22
Wanner Bau AG Logo

Wanner Bau AG

Since 1975 · 11–20 empl.4.2(11)

Wanner Bau AG is a construction company specialising in building and civil engineering. Its services include new builds, alterations, renovations and refurbishment, civil engineering works, skip rental and waste disposal.

Building contractorBuilding constructionCivil engineeringSkip container service
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #23
Schenker Architektur + Bauleitung AG Logo

Schenker Architektur + Bauleitung AG

Since 1981 · 1–10 empl.

The company's core activity encompasses two main areas: 1. Construction services: The company offers a wide range of services in the fields of residential, commercial and industrial construction, including consulting, execution planning and building diagnostics. 2. Real estate valuation: The company prepares detailed market value assessments for residential, industrial and commercial properties for individuals and private entities, using the latest calculation methods of the SIV.

Building contractorConstruction servicesProperty valuation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #24
Reinhold Dörfliger AG Logo

Reinhold Dörfliger AG

Since 1981 · 21–50 empl.

Reinhold Dörfliger AG is a construction services company providing demolition, recycling and disposal, earthmoving, specialist civil engineering and general civil engineering work. Its activities also include forest and field road construction, river and stream works, limestone extraction and transport.

Building contractorDeconstructionRecycling and DisposalEarthworks, Special Deep Construction and General Civil Engineering
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #25
Andreas Meier AG Logo

Andreas Meier AG

Since 1990 · 11–20 empl.

The core activity of Andreas Meier AG encompasses a wide range of construction services, including: building construction (e.g. single-family homes, multi-family homes, extensions, renovations), civil engineering (e.g. earthworks, excavation, infrastructure development), road construction, utility construction, demolition, excavation services, and paving. The company thus offers comprehensive construction services, from planning to execution, and positions itself as a reliable partner for individual construction projects.

Building contractorDeep civil engineeringRoad constructionUtility line construction
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #26
FRIEDLIPARTNER SOLOTHURN AG Logo

FRIEDLIPARTNER SOLOTHURN AG

Since 1990 · 21–50 empl.

FRIEDLIPARTNER SOLOTHURN AG is an engineering and consultancy firm providing geotechnical and environmental services. Its work includes ground investigations and geotechnical site support, special foundation engineering, geology/hydrogeology, contaminated-site assessment and remediation, and soil protection and pollutant-related services.

Building contractorGround InvestigationGeotechnics and Special FoundationsGeology and Hydrogeology
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #27
Ivan Steiner, Bauunternehmung Logo

Ivan Steiner, Bauunternehmung

Since 1998 · 1–10 empl.

Ivan Steiner, Bauunternehmung is a construction business offering building and civil engineering work, renovations and alterations, landscaping and garden work, and planning services. It also rents out or sells its own properties.

Building contractorBuilding constructionCivil engineeringConversions and renovations
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #28
Tozzo AG SO Logo

Tozzo AG SO

Since 2002 · 11–20 empl.

Tozzo AG SO is a civil engineering and road construction company. Its services include road construction, earthworks, sewer and utility construction, excavation and demolition, and surveying.

Building contractorRoad constructionEarthworksSewerage and utility pipeline construction
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #29
C. Rötheli Architekt Logo

C. Rötheli Architekt

Since 2003 · 1–10 empl.

C. Rötheli Architekt is an architectural practice that plans and carries out conversions and new buildings for single- and multi-family homes, public buildings, and industrial and commercial properties. It also provides building consultancy, planning and construction management, and assistance with grant applications for energy-related building renovations.

Building contractorArchitectural planning and construction managementConstruction consultingRenovations and energy-efficient building refurbishment
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #30
J. Merckx GmbH Logo

J. Merckx GmbH

Since 2003 · 1–10 empl.

The core activity of J. Merckx GmbH is construction, including high-rise and civil engineering.

Building contractorBuilding constructionCivil engineeringSite preparation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #31
A & I GmbH Logo

A & I GmbH

Since 2004 · 1–10 empl.

A & I GmbH is a planning and expert consultancy offering planning and engineering services, structural calculations and construction supervision, together with construction quality assurance, energy consulting and issuance of energy performance certificates.

Building contractorPlanning and engineering servicesEnergy consultation and energy certificateOn-site quality assurance and controlling
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #32
Hürzeler Raumdesign Logo

Hürzeler Raumdesign

Since 2011 · 1–10 empl.

Hürzeler Raumdesign is a carpentry company specializing in the planning and execution of interior designs, particularly kitchens, doors, windows, renovations, partition walls, terrace floors and ceiling systems.

Building contractorJoinery workKitchensWindows
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #33
Gebrüder Danz AG Logo

Gebrüder Danz AG

Since 2012 · 1–10 empl.

Gebrüder Danz AG is a construction company carrying out building and civil engineering work, conversions and renovations. Its services include masonry, wall and floor coverings, tiling, and work on driveways and garden paths.

Building contractorConversions and renovationsBuilding and civil engineeringTiling work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #34
Akrona GmbH Logo

Akrona GmbH

Since 2014 · 1–10 empl.

Akrona GmbH provides property management and maintenance services. Its work includes caretaking, garden maintenance, cleaning, painting and plastering, floor installation, assembly work and renovations.

Building contractorCaretaker and property maintenance serviceGarden maintenancePainting and plastering work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #35
Matic GmbH Logo

Matic GmbH

Since 2014 · 1–10 empl.

Matic GmbH is a general contractor for conversions, new construction and building renovations. Its activities include planning and project development.

Building contractorGeneral contractor
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #36
baupunkt-bau GmbH Logo

baupunkt-bau GmbH

Since 2017 · 1–10 empl.

The core activity of Baupunkt Bau GmbH is the provision of services in the field of construction management, particularly in the planning, tendering, calculation and monitoring of construction projects, with a focus on multi-family houses.

Building contractorConstruction managementQuantity take-offTendering
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #37
Ischbau AG Logo

Ischbau AG

Since 2018 · 1–10 empl.

Ischbau AG is a construction company specialising in trenchless utility installation and civil engineering. Its services include masonry, paving and concrete work, landscaping, concrete cutting and drilling, and demolition.

Building contractorMasonry and concrete workCivil engineering workExternal works
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #38
LEONI GmbH Logo

LEONI GmbH

Since 2018 · 11–20 empl.

LEONI GmbH provides energy and data management solutions as well as cable and wiring-system products for the automotive industry. Its portfolio includes low-voltage wiring harnesses, high-voltage wiring systems, battery and charging cables and system-integrated solutions, and it supplies engineering services such as simulation, testing and validation.

Building contractorWiring SystemsDevelopment SupportHigh Voltage Wiring Systems
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #39
purimo ag Logo

purimo ag

Since 2022 · 1–10 empl.

purimo ag develops and markets residential property. Its Rohrhollen project comprises two semi-detached houses and three terraced houses.

Building contractorReal estate project developmentSale of condominiums / single-family housesConstruction specification and fit-out planning
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #40
Stiftung für die Renovation der Kaserne der päpstlichen Schweizergarde im Vatikan Logo

Stiftung für die Renovation der Kaserne der päpstlichen Schweizergarde im Vatikan

Since 2016 · 11–20 empl.

Stiftung für die Renovation der Kaserne der päpstlichen Schweizergarde im Vatikan supports the renovation and maintenance of the barracks of the Papal Swiss Guard in the Vatican. The foundation’s website presents its mission and activities related to this renovation project.

Building contractor
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #41
Bauunternehmung Baroffio AG Logo

Bauunternehmung Baroffio AG

Since 2004 · 1–10 empl.4.6(5)

The core activity of Baroffio AG is the provision of services in the field of construction and civil engineering, particularly in the areas of masonry, conversions, renovations, refurbishments and new construction.

Building contractorConstructionBuilding Construction / Civil EngineeringMasonry Work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #42
Mani Bau GmbH Logo

Mani Bau GmbH

Since 2018 · 1–10 empl.

The core activity of Mani Bau GmbH is the execution of masonry work, new constructions, renovations, core drilling and environmental work in the construction industry.

Building contractorClient masonry worksExtensions & conversionsRenovations
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #43
BF

Bautherm Flachdach Spenglerei AG

Since 2016 · 1–10 empl.5.0(7)

Building contractor
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #44
Borer Planung + Baumanagement gmbh Logo

Borer Planung + Baumanagement gmbh

Since 2020 · 1–10 empl.

Borer Planung + Baumanagement gmbh provides energy consulting, building energy analyses (GEAK), and planning and construction support for heating replacement and energy-related renovations. Services include system comparisons, guidance on subsidies, photovoltaic and ventilation planning, thermography and preparation of energy compliance documentation.

Building contractorConsultingAnalysisPlanning and support
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #45
Galli und Siegenthaler Bauplanungen AG Logo

Galli und Siegenthaler Bauplanungen AG

Since 1985 · 1–10 empl.4.0(7)

The core activity of Galli + Siegenthaler Bauplanungen AG is the creation of building plans and the implementation of construction projects, particularly in the area of multi-family homes, single-family homes, industrial and commercial buildings. The company offers services such as construction management, architectural design and CAD, and employs correspondingly qualified personnel, including construction managers, draftsmen and apprentices.

Building contractorArchitecture and construction planningConstruction management and site supervisionResidential construction for owner-occupied homes
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #46
Kilcher Bauunternehmung AG Logo

Kilcher Bauunternehmung AG

Since 2019 · 1–10 empl.5.0(4)

The core activity of Kilcher Bauunternehmung AG is the execution of construction projects, including new buildings, renovation work, and other construction work, with the company offering general contracting, renovation, and masonry services, and working closely with architects.

Building contractorBuilding constructionRenovation workMasonry contractor
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #47
Grünig Bau AG Logo

Grünig Bau AG

Since 1984 · 1–10 empl.5.0(4)

Grünig Bau AG is a construction company carrying out building and civil engineering work. Its services include new builds and alterations, masonry, drainage and excavation, demolition, renovation, refurbishment and landscaping work.

Building contractorNew buildsAlterations & extensionsMasonry works
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #48
Genossenschaft für ländliches Bauen im nordwestschweizerischen Jura Logo

Genossenschaft für ländliches Bauen im nordwestschweizerischen Jura

Since 1967 · 11–20 empl.5.0(2)

Genossenschaft für ländliches Bauen im nordwestschweizerischen Jura is a construction cooperative carrying out new builds, alterations and renovations, as well as agricultural construction projects. Its services also include core drilling and other building work; it promotes the joint procurement of building materials and self-help in construction.

Building contractorNew builds and renovationsAgricultural buildingsVarious works
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #49
Marina Gerüste GmbH Logo

Marina Gerüste GmbH

Since 2014 · 1–10 empl.5.0(3)

Marina Gerüste GmbH provides scaffolding services for façades, roofs, renovation work and new-build projects. The company uses Layher and Nor'48 systems and can install hoists, waste chutes and stair towers. Work is carried out in accordance with applicable safety standards (SUVA).

Building contractorWorking and facade scaffoldsScaffold construction for new buildsScaffolds for roof and roof soffit work
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #50

Building contractor in the Canton of Solothurn

161Building contractorCommercial register (Zefix) · as of November 6, 2026
2016Median year of registrationCommercial register (Zefix) · as of November 6, 2026
161in the Canton of SolothurnCommercial register (Zefix) · as of November 6, 2026
5,330in SwitzerlandCommercial register (Zefix) · as of November 6, 2026
Locations

Building contractor in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 6, 2026