General Contractors in
Basel

154 companies in General Contractors based in Basel — name and year of registration from the commercial register.

Companies

50 of 154 companies

Algon AG Logo

Algon AG

Since 1976 · 1–10 empl.4.8(22)

The core activity of Algon AG is the execution of construction projects, including painting, building and renovation work, as well as the provision of construction management services as a general contractor (GU) or total contractor (TU) for private and business customers in Northwestern Switzerland. The activities include, among others: construction management (GU/TU), painting work (interior and exterior), renovation and restoration work, conversion and extension work, new construction work, flooring work, floor laying work (parquet, textile, plastic), wallpapering, and plastering and glazing techniques. The company offers its services in the Basel-Stadt region and Northwestern Switzerland.

Building ConstructionConstruction management (GC/TC)Flooring workPainting work
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #1
ERNE AG Bauunternehmung Logo

ERNE AG Bauunternehmung

Since 2005 · 51–100 empl.4.9(7)

ERNE AG Bauunternehmung is a construction company carrying out building construction, civil engineering and renovation works, and providing specialist services such as concrete repair and protection, concrete drilling and cutting, demolition and water engineering. Acting as builder and as general/total contractor, it delivers industrial, commercial, residential, infrastructure and datacenter projects.

General ContractorsAlterations and renovationGeneral contractor ERNEplusSpecial construction work
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #2
Haberstroh Architekten GmbH Logo

Haberstroh Architekten GmbH

Since 2011 · 21–50 empl.4.4(14)

The core activity of Haberstroh Architekten is the planning and realization of architectural projects, including new buildings, conversions, competitions, and product design. The company also offers services in the fields of construction and design, and is involved in the training of apprentices and students in practical training.

Architecture FirmsArchitectural planningClient advisory and client representationReal estate consulting
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #3
Straumann-Hipp Bauconsult AG Logo

Straumann-Hipp Bauconsult AG

Since 1999 · 21–50 empl.4.4(19)

Straumann-Hipp Bauconsult AG provides construction services, handling new-build, conversion and renovation projects as well as plastering, remediation of hazardous substances and related refurbishment works, and coordinates executing contractors and site management.

General ContractorsConstruction servicesBuilding construction & new buildConversion
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #4
Losinger Marazzi AG Logo

Losinger Marazzi AG

Since 2011 · 21–50 empl.4.0(25)

Losinger Marazzi AG develops and delivers sustainable living and working spaces as well as infrastructure projects, providing services across the entire real estate value chain. The company’s services include project development, construction execution, renovation and the realization of hospital and industrial buildings.

General ContractorsReal estate and land developmentDelivery of construction projectsOperations and maintenance
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #5
Staehelin Meyer Architektur AG Logo

Staehelin Meyer Architektur AG

Since 2010 · 11–20 empl.5.0(4)

The core activity of Staehelin Meyer Architektur is the provision of architectural services.

Architecture FirmsArchitectural planningConversion and renovationResidential buildings
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #6
Frutiger AG Basel Logo

Frutiger AG Basel

Since 1977 · 11–20 empl.

Frutiger AG Basel is a construction company that delivers public infrastructure, building projects and integrated solutions for the real estate market. Its activities also include a broad range of specialisms in construction, technical services, logistics and real estate development.

General ContractorsBuilding constructionConversions and renovationsMaterial logistics
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #7
Kart & Partner AG Logo

Kart & Partner AG

Since 1981 · 1–10 empl.

The company is a general contractor with core activities in the following areas: * Planning and project development of construction projects * Architecture and design * Construction execution and project management * Renovation and refurbishment of real estate * Purchase and sale of real estate * Turnkey handover of construction projects The company offers a comprehensive service from planning to completion of construction projects and focuses on achieving the highest quality and customer satisfaction.

General ContractorsGeneral contractingReal estate services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #8
Ueli Müller AG Logo

Ueli Müller AG

Since 2000 · 1–10 empl.

The core activity of muellerueli.architekten - Ueli Müller AG is the planning and implementation of architectural projects, including the conception, planning and realization of buildings, residential houses, office buildings, schools, sports halls and other structures.

General ContractorsArchitectural planningDesign and execution of construction projectsArchitectural services for residential buildings
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #9
Fischler Architekten AG Logo

Fischler Architekten AG

Since 2004 · 1–10 empl.

The core activity of Fischler Architekten is the provision of architectural and project development services, particularly in the field of residential construction and real estate in Basel. This includes land acquisition, project development, planning and execution of construction projects as well as the offering of real estate properties.

Architecture FirmsArchitectureReal estate developmentLand acquisition
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #10
ARCHPRO AG Logo

ARCHPRO AG

Since 2009 · 51–100 empl.

The core activity of ARCHPRO is the planning and realization of complex retail projects, particularly in the luxury retail sector, as well as the construction of luxury villas in various European countries. The company offers comprehensive services in the areas of project management, shopfitting, architecture, and construction, and has extensive experience in collaborating with international brands and companies.

General ContractorsProject managementSite management and Construction Management (CM)
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #11
Pedrocchi Architekten HTL GmbH Logo

Pedrocchi Architekten HTL GmbH

Since 2010 · 1–10 empl.

The core activity of Pedrocchi Architekten is the provision of architectural services, particularly in the renovation and repurposing of buildings.

General ContractorsArchitectural services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #12
Kunz Architekten ETH/SIA AG Logo

Kunz Architekten ETH/SIA AG

Since 2013 · 1–10 empl.

The core activity of Kunz-Architekten AG is the planning and realization of construction projects, including residential buildings, public buildings, commercial buildings, renovations, and neighborhood plans, utilizing the expertise of degreed architects.

General ContractorsArchitecture from concept to executionOverall planning, general planning and total contractingResidential construction
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #13
Akyuez Architekten GmbH Logo

Akyuez Architekten GmbH

Since 2014 · 1–10 empl.

The core activity of Akyuez Architekten is the provision of architectural services.

Architecture FirmsArchitectural projects
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #14
Lo Verdi Architekten AG Logo

Lo Verdi Architekten AG

Since 2015 · 1–10 empl.

The core activity of LO VERDI ARCHITEKTEN AG is the planning and realization of architectural projects, particularly in the field of high-rise construction, such as new buildings, conversions and renovations of residential and commercial buildings, schools, community centers and nursing homes.

Architecture FirmsArchitectural PlanningProject and Execution PlanningGeneral Planning
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #15
Nicolas Burckhardt Architekten GmbH Logo

Nicolas Burckhardt Architekten GmbH

Since 2018 · 1–10 empl.

The core activity of Nicolas Burckhardt Architekten is the planning and implementation of architectural projects, particularly the renovation and conversion of existing buildings, as well as the planning and realization of new and redevelopment projects. This also includes advisory services for real estate purchases and sales, as well as collaboration with other professionals in the realization of projects.

Architecture FirmsRenovation & RefurbishmentNew constructionClient advisory
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #16
Kägi & Schnabel Architekten AG Logo

Kägi & Schnabel Architekten AG

Since 2007 · 1–10 empl.

Architecture Firms
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #17
GmbH freie Bauhütte Logo

GmbH freie Bauhütte

Since 2012 · 1–10 empl.

General Contractors
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #18
Moraña Fritschi Architekten GmbH Logo

Moraña Fritschi Architekten GmbH

Since 2017 · 1–10 empl.

The core activity of Morana Fritschi Architekten is the planning and realization of architectural projects, particularly conversions, renovations, modernizations and monument-conserving restorations. The company offers services such as feasibility studies, design, execution planning, detailed planning, coordination with specialist planners, design-oriented construction management, client support and material concepts.

General ContractorsArchitectural ServicesProject Planning and Execution PlanningConstruction Supervision and Site Management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #19
CSG Baumanagement AG Logo

CSG Baumanagement AG

Since 1986 · 21–50 empl.3.7(7)

CSG Baumanagement AG provides construction management services including project and site management, project development and general planning. The firm also delivers general- and total-contractor services, construction trust (bautreuhand) and project controlling, handling cost, schedule and quality oversight across project phases.

General ContractorsConstruction management, general/total contracting (GU/TU) & construction trusteeship for private clientsConstruction management for property developers, commercial clients & municipalities
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #20
netz work.ing GmbH Logo

netz work.ing GmbH

Since 2018 · 1–10 empl.

netz work.ing GmbH is an engineering and consulting company. It supports project owners and works on projects related to digitalisation, BIM and infrastructure.

Building ConstructionClient supportBIM management and BIM coordinationProject management for object agreements
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #21
Herzog Ritter Architekten AG Logo

Herzog Ritter Architekten AG

Since 2015 · 1–10 empl.5.0(3)

Herzog Ritter Architekten AG is an architectural practice (Architekten ETH SIA) that designs residential, workplace and public spaces. The firm handles planning from layouts to façades and uses visualizations and models to coordinate design decisions with clients and users.

Architecture FirmsArchitectural planningNew-buildRenovation and extension
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #22
VET Bau und Facility Management GmbH Logo

VET Bau und Facility Management GmbH

Since 2021 · 11–20 empl.

The core activity of VET Bau und Facility Management GmbH is the implementation of construction and facility management projects. The company offers services such as consulting, planning, project management and execution of construction projects, positioning itself as a general contractor for comprehensive project management.

General ContractorsRenovation and refurbishment workTimber constructionSolar-Panel Installation
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #23
ps architektur perroneschneider GmbH Logo

ps architektur perroneschneider GmbH

Since 2004 · 1–10 empl.4.0(4)

The core activity of Perrone Schneider is the provision of architectural services, particularly the planning, design and realization of construction projects, including renovations and new buildings, for residential and commercial properties.

Architecture FirmsArchitectural services
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #24
Patrick Reuter Architektur GmbH Logo

Patrick Reuter Architektur GmbH

Since 2017 · 1–10 empl.

Patrick Reuter Architektur GmbH is an architectural practice working on projects in architecture, urban design and landscape. The office produces designs for residential, educational and public buildings as well as competition proposals, and combines professional practice with teaching and research.

Architecture FirmsArchitectural services
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #25
on3 neues wohnen ag Logo

on3 neues wohnen ag

Since 2009 · 1–10 empl.3.4(8)

on3 neues wohnen ag is a general contractor for residential development that develops and delivers housing projects. The company manages planning, coordination and implementation tasks on behalf of clients.

Architecture FirmsGeneral contractor for residential development
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #26
on3 AG Logo

on3 AG

Since 2011 · 1–10 empl.3.4(8)

on3 AG is an architecture firm providing concept and design work as well as comprehensive planning services for residential, commercial and public buildings. The firm handles all project phases — study and design, cost estimation, execution planning, construction management and handover — and also undertakes renovations, conversions and interior projects; a related company serves as a general contractor for housing developments.

Architecture FirmsArchitectural planningRenovations, conversions and interior fit-outHousing estate construction as general contracting
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #27
Jaeger Koechlin GmbH Logo

Jaeger Koechlin GmbH

Since 2013 · 1–10 empl.4.8(5)

The core activity of Jaeger Koechlin is the planning and realization of architectural projects, particularly in the field of residential construction, kindergartens and other buildings. The company offers services such as feasibility studies, project competitions, construction projects and renovations, and operates in Switzerland.

Architecture FirmsArchitectural planningBuilding and project developmentConversion and refurbishment
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #28
ON3 ARCHITEKTEN GmbH Logo

ON3 ARCHITEKTEN GmbH

Since 2004 · 1–10 empl.3.4(8)

ON3 ARCHITEKTEN GmbH is an architectural practice that carries out all planning and realisation phases, from study and design through execution planning to construction and site supervision. The firm designs single-family homes, residential and commercial buildings as well as public projects, and undertakes renovations, conversions and interior fit-outs, with a focus on housing. The practice also operates the related company on3 neues wohnen ag as a general contractor and offers an associated interior furnishing activity.

Architecture FirmsArchitectural planningConversion, renovation and interior fit-outResidential construction
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #29
Omnia GmbH Logo

Omnia GmbH

Since 2022 · 1–10 empl.4.4(7)

Omnia is a construction company that carries out a wide range of building projects, including: residential buildings, commercial properties, renovations, restorations, new constructions, and extensions. The company also offers specific services such as: ceramic wall and floor coverings, flooring, plastering and painting, demolition and dismantling, and construction cleaning. The core activity of the company is the planning, implementation, and completion of building projects, with a focus on quality, aesthetics, and customer satisfaction.

Construction & Project ManagementGeneral contractingDemolition & dismantlingCeramic wall and floor coverings
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #30
Lukas Raeber GmbH Logo

Lukas Raeber GmbH

Since 2012 · 1–10 empl.4.2(5)

Lukas Raeber GmbH is an architectural practice focusing on architecture, urban design and object design. The studio provides consulting and develops projects across all phases — from design and planning to construction — for private, public and institutional clients, with an emphasis on clearly articulated material and constructive systems.

Architecture FirmsArchitectureUrban planningBuilding design
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #31
Martini Schäfer Baumanagement GmbH Logo

Martini Schäfer Baumanagement GmbH

Since 2017 · 11–20 empl.5.0(1)

The core activity of Martini Schäfer Baumanagement GmbH is the provision of services in the field of construction management, including overall management, tendering, construction management, commissioning, general planning, construction cost planning and scheduling for construction projects. The company thus offers comprehensive consulting and management services for builders and investors to successfully realize their construction projects from planning to completion.

Construction & Project ManagementOverall project managementGeneral planningConstruction cost planning
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #32
Michel Duc architecte EPFL GmbH Logo

Michel Duc architecte EPFL GmbH

Since 2022 · 1–10 empl.

Michel Duc architecte EPFL GmbH is an architectural practice providing architectural services and real-estate expertise, including renovation design, interior design, construction documentation and site supervision. The practice also carries out condition analyses, property valuations and consultancy on building and real-estate matters.

Architecture FirmsArchitecture and construction management servicesProperty valuation and condition analysesLegal feasibility studies and construction consulting
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #33
Ekon Modulbau GmbH Logo

Ekon Modulbau GmbH

Since 2022 · 1–10 empl.

Ekon Modulbau GmbH provides design, factory production and on-site assembly of prefabricated and modular timber buildings. Services include single-family prefabricated houses, multi-storey modular buildings and mobile units, as well as packaging, logistics, export documentation, installation, site supervision and consulting, using certified eco-friendly materials and targeting low-energy performance.

General ContractorsPrefabricated housesPrefabricated buildingsModular construction
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #34
IISO BAU GmbH Logo

IISO BAU GmbH

Since 2024 · 1–10 empl.5.0(11)

The core activity of IISO BAU GMBH is construction management for commercial and residential projects.

General ContractorsConstruction Management
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #35
MG

Modero GmbH

Since 2013 · 1–10 empl.5.0(2)

The core activity of Modero GmbH is construction.

General Contractors
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #36
Barcelo Baumann Architekten GmbH Logo

Barcelo Baumann Architekten GmbH

Since 2008 · 11–20 empl.5.0(1)

The core activity of Barcelo Baumann Architekten is the planning and realization of construction projects, particularly in the field of architecture, taking into account individual, tailored solutions and the connection of new with existing structures. The activities include, among others: new construction of buildings (residential buildings, schools, office buildings, etc.), renovation and refurbishment of existing buildings (historic preservation, modernization, etc.), planning and realization of special buildings (pavilions, tram shelters, etc.), competition entries and wins, as well as consulting and support for clients in construction projects. The core activity of the company is thus architecture and construction planning.

Architecture FirmsArchitectural services for residential constructionArchitectural services for educational and commercial buildingsArchitectural services for special buildings
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #37
Stadler Zlokapa GmbH Logo

Stadler Zlokapa GmbH

Since 2020 · 1–10 empl.

The core activity of Stadler Zlokapa Architekten is the planning and realization of architectural projects, particularly in the areas of schools, kindergartens, residential buildings, and public buildings. The company participates in architectural competitions and carries out projects from planning to execution, often in collaboration with other professionals such as landscape architects and engineers.

General ContractorsArchitectural servicesCompetition projectsDesign and execution
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #38
Martini Schäfer Immobilien GmbH Logo

Martini Schäfer Immobilien GmbH

Since 2019 · 1–10 empl.5.0(1)

Martini Schäfer Immobilien GmbH provides construction management services, offering overall project management, general planning, cost and schedule planning, tendering, site supervision and commissioning.

General ContractorsConstruction management
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #39
Piertzovanis Toews GmbH Logo

Piertzovanis Toews GmbH

Since 2019 · 1–10 empl.5.0(3)

The company's core activity is the planning and realization of architectural projects, including renovations, new constructions and competition projects in the field of residential, office and public buildings, as well as exhibition and event design.

Architecture FirmsArchitectureCompetition planningConversion and refurbishment
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #40
TF ARCHITEKTUR GmbH Logo

TF ARCHITEKTUR GmbH

Since 2022 · 1–10 empl.

TF ARCHITEKTUR GmbH provides architectural services including design, planning and execution of private and public buildings. The firm works on renovations and conversions, including projects with heritage-conservation aspects, and offers expert reports, client advisory services, studies and competition entries.

Architecture FirmsArchitectural servicesExpert and client advisory services
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #41
CREO Baumanagement AG Logo

CREO Baumanagement AG

Since 2022 · 1–10 empl.3.0(2)

CREO Baumanagement AG provides project and construction management services, including project and site management, cost planning, tendering, quality management and general/total contracting. The company also acts as client representative, supports project development and coordinates procurement and contract award processes.

Construction & Project ManagementConstruction managementClient representation / client advisoryCost planning
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #42
brun architektur gmbh Logo

brun architektur gmbh

Since 2009 · 1–10 empl.3.0(4)

The core activity of BRUN!architektur gmbh is the planning and implementation of construction projects, including new construction, renovation and refurbishment, as a partner for clients in Switzerland.

Architecture FirmsArchitectural and construction management servicesRenovations and conversionsInterior design
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #43
K&

Kasa & Balazi GU AG

Since 2016 · 1–10 empl.3.5(8)

General Contractors
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #44
Imova Immobilien AG Logo

Imova Immobilien AG

Since 2026 · 1–10 empl.

Imova Immobilien AG provides building services, property maintenance and IT services for private and commercial clients. Its activities include painting, plastering, parquet and laminate work, ceramics, new build and conversion projects, planning and construction management, demolition, property services and electrical installations.

Construction & Project ManagementPlanning and Construction ManagementProperty ServicesElectrical Installation and IT
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #45
Stern Immo & Bau AG Logo

Stern Immo & Bau AG

Since 2026 · 1–10 empl.

Stern Immo & Bau AG is a real estate company that handles the sale, rental and management of residential, commercial and business properties. It also provides renovations, conversions, consulting and support for property projects.

Construction & Project ManagementProperty Sales and LettingProperty ManagementRenovation as General and Total Contractor
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #46
BAUR Architektur & Baumanagement AG Logo

BAUR Architektur & Baumanagement AG

Since 2026 · 1–10 empl.

BAUR Architektur & Baumanagement AG provides services in architecture and construction management. The company supports projects from development through to handover and works on residential, hotel, office, retail and public building projects.

Architecture FirmsArchitecture and Construction Management Services
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #47
BESA Generalunternehmung GmbH Logo

BESA Generalunternehmung GmbH

Since 2015 · 1–10 empl.

The core activity of BESA GmbH is general contracting, particularly in ecological and energetic conception, property management, planning and installation of PV systems as well as electrical engineering and electronics.

Building ConstructionGeneral contractorProperty managementReal estate brokerage
No score yet
Furer Architekten GmbH Logo

Furer Architekten GmbH

Since 2018 · 1–10 empl.

The core activity of Furer Architekten GmbH is the provision of architectural services.

General ContractorsArchitectural services
No score yet
ALM AG Logo

ALM AG

Since 2021 · 1–10 empl.

The core activity of ALM-AG is the planning, coordination and organization of construction projects, particularly in the area of conversions, renovations and refurbishments, as well as the provision of specialized services such as masonry, plastering, painting and drywall work.

Building ConstructionConversion and renovation workConstruction managementPainting work
No score yet

General Contractors in Basel

154General ContractorsCommercial register (Zefix) · as of October 10, 2026
2020Median year of registrationCommercial register (Zefix) · as of October 10, 2026
160in the Canton of Basel-CityCommercial register (Zefix) · as of October 10, 2026
9,216in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

General Contractors in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 10, 2026

Largest places

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