Engineer in
Olten
46 companies in Engineer based in Olten — name and year of registration from the commercial register. The list below shows them all.
All 46 companies in Olten
Neosys AG
Since 2001 · 21–50 empl.5.0(11)
The company provides consulting and services in the areas of environmental protection, sustainability and risk management. The core activities include: Environmental and energy consulting, Life cycle assessments and sustainability reporting, Occupational hygiene and indoor pollutants, Social responsibility and sustainable development, Compliance and risk management, particularly in the area of international guidelines and laws (e.g. human rights, child labor). The company supports companies and organizations in the implementation of sustainability strategies and compliance with environmental and social standards.
eqe AG
Since 2012 · 11–20 empl.4.3(12)
eqe AG plans and implements industrial and process-engineering plants and works in nuclear technology. Its services include engineering, project and quality management, manufacturing, assembly, maintenance, personnel services and adult education; it also supplies valves, rupture discs, fittings and accessories.
Axalp Technologies AG
Since 2020 · 1–10 empl.5.0(7)
Axalp Technologies AG develops and builds engineering solutions for unconventional aircraft, including drones and electric and hybrid aircraft and eVTOLs. Its services range from concept development and design to the integration of airframes and systems, testing and flight trials.
ASPES Ingenieurunternehmung AG
Since 1989 · 1–10 empl.
The core activity of ASPES AG is engineering services in specialized areas, particularly: * Type certification of light aircraft and rail vehicles * Noise measurement and reduction for light aircraft * Energy storage * Fiber-reinforced plastics The company provides consulting services in these areas.
SC+P Sieber, Cassina + Partner AG
Since 1991 · 11–20 empl.
SC+P Sieber, Cassina + Partner AG is an engineering and consulting firm providing services in geology, geotechnical engineering, landfill engineering and environmental disciplines. Services include environmental impact assessments, contaminated-site investigations, waste and landfill planning, geological and hydrogeological studies, and geotechnical consulting with construction supervision.
Ingenieurbüro Christian Amoser Energie-Ing. NDS HTL
Since 1998 · 1–10 empl.
Ingenieurbüro Christian Amoser Energie-Ing. NDS HTL is an engineering consultancy focused on energy efficiency. Its services include energy consulting and planning, energy concepts, and energy performance documentation.
Ingenis AG
Since 2001 · 11–20 empl.
Ingenis AG is an engineering consultancy specialising in technical and scientific calculations and simulations. It analyses and optimises technical structures using finite element analysis, static and dynamic analyses, and strength and fatigue-life assessments.
TRANSOPTIMA GmbH
Since 2007 · 1–10 empl.
TRANSOPTIMA GmbH provides planning, consulting and research services in transport modelling, transport planning and behavioural analysis. Its activities include developing transport models and forecasts, conducting surveys, and analysing traffic engineering and transport management measures.
Bauphysik Schweiz GmbH
Since 2013 · 11–20 empl.
The core activity of Bauphysik Schweiz GmbH is the building physics planning and consulting for high-rise construction projects in Switzerland. Specifically, this includes the creation of certificates and consulting in the areas of energy efficiency (energy certificate, Minergie applications, subsidy applications), acoustics (sound insulation certificates, room acoustics measurements), building physics inspection of constructions and materials, optimization of building envelopes and thermal insulation concepts, damage analysis and moisture measurements. The company thus offers comprehensive services for the planning and realization of energy-efficient and acoustically optimized buildings in Switzerland.
Nabla Ingenieure GmbH
Since 2015 · 11–20 empl.
Nabla Ingenieure GmbH provides engineering services for transport and infrastructure facilities. Its work includes tunnel ventilation and building-services planning, safety and risk assessments, and support for facilities during operation.
Partner Ingenieure AG
Since 2020 · 1–10 empl.
Partner Ingenieure AG provides consulting, electrical engineering and training in building services engineering. It supports clients, architects and property managers from project development through operational optimisation, and plans new builds, conversions and renovations.
RSK Environment Switzerland GmbH
Since 2020 · 11–20 empl.
The company RSK offers a wide range of services focusing on environment, health and safety. The core activities include: Laboratory testing (Radiological Services, Geotechnical Testing, Materials Testing, Molecular Diagnostics); Environmental protection and disaster response (Spill and Pollution Response); Design and consulting (Principal Designer and CDM Advisor); Digital services (Digital, Media and Design, Communications, Information Management, Software Design and Development); Sustainability reporting and strategy. Overall, the company's focus is on providing comprehensive solutions for businesses and organizations to meet their environmental, health and safety requirements.
eicher+pauli Olten AG
Since 2017 · 101–500 empl.5.0(2)
eicher+pauli Olten AG provides planning and consultancy for energy, building services and infrastructure projects as an integrated planner. Services include energy strategy, building technology, data and process analysis, and the use of digital methods such as BIM and system simulation to develop energy-efficient solutions.
ABYLLE Software Technologies GmbH
Since 2021 · 11–20 empl.
The company offers services in the field of digital transformation and engineering, particularly in the automotive, manufacturing, e-commerce, and banking and finance industries. The core activities include: Engineering Services, including Digital Transformation, Revolutionizing Connectivity, Data & Analytics, Experience (UI/UX), Quality Engineering, and Precision Crafting; Technology expertise in SAP S/4 Hana, Salesforce, Microsoft, Open Source, PHP, Automation, Internet of Things, and Mobile Application; and Quality Engineering (Services) and Intelligence Engineering. The company thus offers a wide range of services in the field of digital transformation and engineering, with a focus on the above-mentioned industries and technologies.
Spektrum Geophysik AG
Since 2022 · 1–10 empl.
Spektrum Geophysik AG provides geophysical services for natural hazards and geotechnical applications. It investigates and monitors slope instabilities, permafrost and vibrations, using seismic and other geophysical methods.
Schmutz + Partner Brandschutz AG
Since 2023 · 1–10 empl.
Schmutz + Partner Brandschutz AG is an engineering and specialist planning firm for fire suppression systems and technical fire protection. Services include consulting, condition assessments, design and planning of gas, sprinkler and water‑mist systems, inspection and optimisation of existing installations, and project support through implementation.
Unirail AG
Since 2022 · 1–10 empl.
Unirail AG supports railway technology projects through project management and specialist coordination. Its services include fleet introductions, vehicle commissioning and approval processes, and engineering for maintenance concepts and railway-related certifications.
Schmutz + Partner Energietechnik AG
Since 2024 · 1–10 empl.
Schmutz + Partner Energietechnik AG provides engineering services in energy technology, including heating system design, climate and cooling planning, and the preparation of energy performance certificates (Energienachweise and Minergie). Services also include underfloor heating design, energy consulting, MSRL planning and condition analyses.
Schmutz + Partner Gebäudetechnik AG
Since 2024 · 1–10 empl.
Schmutz + Partner Gebäudetechnik AG is an engineering firm for building services that provides planning, consulting and specialist coordination in areas such as sanitary systems, sewer planning, water hygiene and 3D/BIM planning. The company carries out condition analyses and supports projects from consultation and design through implementation for residential, industrial, laboratory and hospital buildings.
AESCHLIMANN ENGINEERING AG
Since 2012 · 11–20 empl.5.0(1)
AESCHLIMANN ENGINEERING AG is an engineering firm specializing in sanitary building-services planning, providing services such as sanitary system design, fire-protection planning, sewer and utility-line design, and sprinkler system planning.
ROTACS GmbH
Since 2023 · 1–10 empl.
ROTACS GmbH provides radiation protection services for companies deploying personnel at nuclear facilities. Its services include training, advice from radiation protection experts, and support with permits, dose records and operating procedures.
Brunner Engineering AG
Since 2015 · 11–20 empl.5.0(1)
Brunner Engineering AG is a building-services engineering firm offering energy consulting, heating, ventilation and cooling services. Its work includes energy concepts, subsidy applications, heat pumps, district heating, and ventilation and cooling systems.

WENGET GmbH
Since 2026 · 1–10 empl.
WENGET GmbH plans, optimizes and rehabilitates building technology and building automation for properties in German-speaking Switzerland. The company offers, among other things, energy consulting, GA planning, operational optimization, as well as quality assurance and coordination of renovation projects.
Aufzugsservice Bell
Since 2026 · 1–10 empl.
Erbringung von Service- und Reparaturarbeiten, einschliesslich Schachtreinigung, Modernisierung und Beratung für Aufzüge und Kleingüteraufzüge sowie aller damit zusammenhängenden Dienstleistungen.
GEA Consulting GmbH
Since 2012 · 1–10 empl.
GEA Consulting GmbH advises businesses on the transport of dangerous goods and waste disposal. Its services include dangerous goods management, audits and risk analyses, as well as waste consultancy and training on applicable regulations.
Holzer Bauberatung GmbH
Since 2018 · 1–10 empl.
The core activity of Holzer Bauberatung GmbH is the provision of consulting services in the field of construction.
FWP GmbH
Since 2019 · 1–10 empl.
The core activity of FWP GmbH is the planning of district heating systems and energy distribution systems, including strategic planning, execution and handover of projects. They also offer services such as analysis and optimization of pipeline networks, planning of heat and cold distribution systems, as well as the creation of static proofs for pipelines.
Schaffner Smart Solutions AG
Since 2019 · 1–10 empl.
The company provides consulting and development services in the fields of energy, process technology and safety. The core activity includes the development of intelligent and sustainable solutions for the efficient and environmentally friendly production and use of energy, particularly in the area of renewable energies and decarbonization. This also includes advising customers on the implementation of energy projects, developing new processes and technologies, and supporting customers in adapting to legal and regulatory requirements.
Structura C GmbH
Since 2022 · 1–10 empl.
Structura C GmbH distributes sustainable building materials, particularly hemp-and-lime composites for building insulation. It also provides technical advice and support with the planning and implementation of construction projects.
Konzept E AG
Since 2023 · 1–10 empl.
Konzept E AG develops and plans energy projects, with a focus on photovoltaics and the use of renewable energy. The engineering company prepares concepts for energy communities, billing solutions and the integration of storage, electric mobility and heat pumps, and can also support project implementation.
idp invent ag
Since 2012 · 1–10 empl.
S & V Engineering AG
Since 1991 · 1–10 empl.
HW - Industrietechnik GmbH
Since 1994 · 1–10 empl.
Studer & Partner AG, Ingenieur- & Beratungsunternehmung
Since 1996 · 1–10 empl.
cva technical consulting ag
Since 1999 · 1–10 empl.
Frey-con Dipl. Ing. ETH
Since 2005 · 1–10 empl.
CERTIFER Schweiz GmbH
Since 2008 · 1–10 empl.
R. Furrer Bauherrenberatung GmbH
Since 2012 · 1–10 empl.
techperts GmbH
Since 2014 · 1–10 empl.
Normal GmbH
Since 2015 · 1–10 empl.
Wicki-Wyss GmbH
Since 2015 · 1–10 empl.
SLG Projects GmbH
Since 2017 · 1–10 empl.
eugster engineering GmbH
Since 2021 · 1–10 empl.
AC I SK Holding AG
Since 2021 · 1–10 empl.
Krasniqi Engineering & Solutions
Since 2024 · 1–10 empl.
Transoptima Expert GmbH
Since 2025 · 1–10 empl.
Engineer in Olten
Engineer in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of November 6, 2026
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