Civil Engineering Firms in the
Canton of Solothurn
38 companies in Civil Engineering Firms based in the Canton of Solothurn — name and year of registration from the commercial register. The list below shows them all.
All 38 companies in the Canton of Solothurn
Lerch Weber AG
Since 2000 · 11–20 empl.4.6(10)
The core activity of Lerch Weber AG is surveying and civil engineering, particularly official surveying, engineering surveying, construction surveying and geoinformatics. The company offers specific solutions for customers, including the collection of accurate base data for projects. As surveyors responsible for updating the land registry in the districts of Olten and Gösgen, they contribute to property security as part of the land register.
KFB Pfister AG Ingenieure und Planer
Since 1999 · 21–50 empl.5.0(6)
KFB Pfister AG is an engineering firm specializing in the planning and realization of construction projects. The core activities include: Spatial planning: development of concepts and plans for the use of space and area. Civil engineering: planning and realization of infrastructure projects such as roads, bridges, tunnels, and other underground structures. Structural planning: development of load-bearing structures in various materials such as reinforced concrete, steel, wood, and natural stone. Project management: taking over the overall management and coordination of construction projects to ensure that they are completed on time, within budget, and with the required quality. The company thus offers comprehensive services for the planning, realization, and monitoring of construction projects.
Bauplaning AG
Since 2019 · 1–10 empl.5.0(12)
The core activity of Bauplaning AG is the provision of engineering services in the field of construction, particularly in the planning, supervision and renovation of construction projects, as well as in the remediation of radon and building pollutant problems.
Frey + Gnehm Ingenieure AG
Since 2011 · 11–20 empl.4.0(5)
The core activity of Frey+Gnehm Ingenieure AG is the planning and realization of construction projects, particularly in the areas of general planning, structural planning, fire protection planning, project and construction management, architecture, spatial planning and environmental protection, as well as infrastructure planning. The company provides comprehensive and thoughtful planning services for various industries, including logistics, food and chemicals, and accompanies projects from the initial idea to the final execution.
Rothpletz, Lienhard + Cie AG
Since 1967 · 21–50 empl.
Rothpletz, Lienhard + Cie AG is a construction company and engineering firm that combines project planning, civil and tunnel engineering, and construction execution. Its services include project design and planning, construction execution and project support, pneumatic crane and transport services, and inventory/machinery yard and workshop operations.
Burn Engineering AG
Since 1987 · 1–10 empl.
The core activity of Burn Engineering AG is the design and production of special switch cabinets and cooling/climate systems, particularly for the machine tool industry.
BFS Bauingenieure AG
Since 1989 · 1–10 empl.
BFS Bauingenieure AG provides civil and structural engineering services, including planning of roads, sewers, water and utility networks as well as site planning and cadastre. The firm also carries out engineering projects for excavations, retaining structures, stormwater tanks, bridges and noise protection walls.
TMP Baumanagement AG
Since 1992 · 11–20 empl.
The core activity of TMP Baumanagement AG is to support and advise clients in the planning, realization and management of infrastructure projects, particularly in the field of civil engineering and tunnel construction. The company offers services such as construction management, engineering services and project management to ensure the success of its clients' projects.
H. Katzenstein AG
Since 1999 · 1–10 empl.
The core activity of Katzenstein Bauingenieur GmbH is the provision of engineering services in the construction industry, particularly in structural engineering with structural planning and the associated excavations. This includes activities such as building construction, civil engineering, renovation, structural analysis, excavation work, pile foundations, groundwater lowering, structural reinforcement, condition assessment and owner representation.
Katzenstein Bauingenieur GmbH
Since 2001 · 1–10 empl.
Katzenstein Bauingenieur GmbH is an independent civil engineering firm providing structural engineering and design services. Offerings include building construction (concrete, steel, timber), excavation and foundation works, refurbishment and structural reinforcement, and specialist services such as condition surveys, bridge inventories and client representation.
Scioscia Engineering GmbH
Since 2004 · 11–20 empl.
Scioscia Engineering GmbH provides architectural and structural engineering services, project development and construction management. Offerings include feasibility studies, design and execution planning, permit and contract documentation, cost estimates, construction supervision, and general or total contracting with turnkey delivery.
Planzer Bauingenieurbüro SIA
Since 2006 · 1–10 empl.
Planzer Bauingenieurbüro SIA provides planning and execution services in structural engineering and prepares expert reports as well as economic and risk analyses for architects and private and public clients.
Kontextplan AG
Since 2009 · 1–10 empl.
Kontextplan AG develops and plans sustainable living spaces and provides planning, consulting and implementation services in the areas of spatial planning and land use, mobility and traffic, participation and communication, client support and project management, and strategy and leadership.
WAM Planer und Ingenieure AG
Since 2010 · 21–50 empl.
WAM Planer und Ingenieure AG is an engineering firm that provides planning and engineering services in the fields of spatial/traffic environment, infrastructural engineering and structural engineering. Its services include infrastructure planning, structural design and timber-construction engineering.
idtank gmbh
Since 2014 · 1–10 empl.
The company's core activity is the planning and construction of solid wood buildings using wood as the primary building material, with a focus on engineering services in timber construction.
TSW Trachsel, Schibli, Walder & Partner AG, dipl. Bauing. ETH, Olten
Since 1965 · 11–20 empl.
The core activity of TSW AG is the provision of services as a civil engineering and consulting company, particularly in the areas of consulting, planning and execution of construction projects.
BRUNNER Hydro Engineering GmbH
Since 2015 · 1–10 empl.
BRUNNER Hydro Engineering GmbH provides engineering, design and construction of valves and hydraulic control systems for the hydropower sector. Services include project planning and construction of hydraulic components and control equipment for hydropower installations.
Sperisen Ingenieure GmbH
Since 2009 · 1–10 empl.5.0(3)
The core activity of Sperisen Ingenieure GmbH is the planning and construction of buildings in the field of civil engineering, including structural planning, building construction and civil engineering, including the planning and construction of buildings directly on or under the earth's surface.
Kissling + Zbinden AG Ingenieure Planer, Zweigniederlassung Solothurn
Since 2021 · 1–10 empl.
Kissling + Zbinden AG Ingenieure Planer, Zweigniederlassung Solothurn is an engineering and planning firm that designs and delivers civil engineering projects. Its service areas include infrastructure construction, hydraulic engineering, structural design, building preservation, environmental engineering, construction management and specialist services.
Bauingenieurbüro Grimbichler GmbH
Since 2018 · 1–10 empl.
HOLINGER AG
Since 1983 · 11–20 empl.5.0(2)
HOLINGER AG is an engineering firm that develops solutions for the water cycle and operates in wastewater, water supply, hydraulic engineering, urban drainage and environmental sustainability. The company provides holistic planning, consulting and project delivery across the project lifecycle, with multidisciplinary services in civil engineering, energy, industry and digital design.
LMF Ingenieurbüro GmbH
Since 1997 · 1–10 empl.5.0(2)
The core activity of LMF Ingenieurbüro GmbH is the provision of engineering services in the field of civil engineering, particularly in the following specific areas of activity: Civil engineering, Evidence preservation: Condition surveys, Crack protocols, Vibration measurements, Structural analysis. The company thus provides technical services in the field of civil engineering, with a focus on the investigation and analysis of buildings and structures.
SMT AG Ingenieure + Planer
Since 2002 · 1–10 empl.5.0(3)
SMT AG Ingenieure + Planer provides engineering and planning services in structural engineering and civil engineering. The firm designs and calculates structures, bridges and excavations and delivers infrastructure projects such as roads, sewerage and water-supply systems, using digital planning (BIM) for new construction, renovation and deconstruction projects.
Wanner AG Solothurn
Since 1993 · 11–20 empl.4.0(1)
The core activity of Wanner AG is the provision of services in the fields of geology, environment and natural hazards. Specifically, this includes: geological investigations and consulting, water protection and remediation, geothermal energy and heat utilization, contaminated site remediation and disposal, building pollutant investigation and remediation, soil and environmental consulting, natural hazard assessment and prevention, radon testing, and geological excursions and further education. The company offers these services to a variety of clients, including private individuals, companies, architects, engineers, municipalities and cantons.
Fürst Laffranchi Bauingenieure GmbH
Since 2000 · 11–20 empl.5.0(3)
Fürst Laffranchi is an engineering firm specializing in the planning and realization of load-bearing structures for bridges, high-rise and underground construction. Their core activities include conducting condition analyses and inspections of existing load-bearing structures as well as applying specialized and expert knowledge in the fields of structural analysis, construction and geotechnics.
Würth Consulting Partner GmbH
Since 2017 · 1–10 empl.5.0(1)
The core activity of Wuerth Consulting Partner GmbH is engineering services in the field of construction, particularly the planning, calculation and realization of load-bearing structures made of steel, wood, reinforced concrete and masonry for construction projects.
WEILCON GmbH
Since 2023 · 1–10 empl.
The WEILCON GmbH company specializes in supporting construction companies, planners and building owners in construction projects, both in an executive and advisory capacity. The core activities include construction management and project management, construction accounting, construction supervision and project management, estimating, consulting for construction companies and planners, calculation and claim management.
Langenstein & Partner AG
Since 2024 · 1–10 empl.
Langenstein & Partner AG is a consulting and service firm for spatial development and the construction sector. It supports municipalities, private clients, developers, architects and investors with building-permit procedures, spatial planning, legal advice on construction, planning, infrastructure and environmental law, client representation, and temporary or ongoing mandates.
Keller + Dällenbach AG, Ingenieurbüro
Since 1989 · 11–20 empl.
The core activity of Keller + Dällenbach AG is the provision of engineering services in the field of civil engineering, particularly in the areas of: * Road construction * Urban water management * Pipeline construction * Load-bearing structures * Refurbishment of load-bearing structures The company offers planning and consulting services for construction projects focusing on the construction and renovation of roads, water structures, buildings and other structures.
Dibran GmbH
Since 2004 · 1–10 empl.
Ingenieurbüro Märki AG
Since 1989 · 1–10 empl.
TSW Trachsel, Schibli, Walder & Partner AG, dipl. Bauing. ETH, Olten
Since 1990 · 1–10 empl.
Krebs Ingenieure GmbH
Since 1998 · 1–10 empl.
Hunziker Betatech AG
Since 2017 · 1–10 empl.
Yasmine Künzler, YK Bauplanungen + Immobilien
Since 2017 · 1–10 empl.
Schnetzer Bau-Technik GmbH
Since 2018 · 1–10 empl.
Behn Engineering
Since 2022 · 1–10 empl.
SPI Planer und Ingenieure AG
Since 2022 · 1–10 empl.
Civil Engineering Firms in the Canton of Solothurn
Civil Engineering Firms in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 11, 2026
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