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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryTechnical Consulting & Engineering

Technical Consulting & Engineering

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10'496 companies found

ASS Automotive Sales Solutions AG Logo

ASS Automotive Sales Solutions AG 

Hünenberg · Since 2007

The core activity of ASS AG is the development, distribution and implementation of software solutions for the automotive industry, particularly for leasing companies, banks, car dealerships and workshops, manufacturers and importers, insurance companies and fleet management companies. The company also provides consulting services and project management in the automotive environment.

Technical Consulting & EngineeringSoftware Development
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ASSCO Engineering Monthey SA Logo

ASSCO Engineering Monthey SA 

Monthey · Since 2009

The core activity of ASSCO Engineering Monthey SA is the planning of industrial facilities, particularly in the field of mechanical engineering. The company specializes in the planning of facilities for various industries such as chemicals, pharmaceuticals, energy production, waste treatment and environmental technology. In addition, the company offers services in the field of energy consulting and planning and is accredited as a specialized energy consultant.

Technical Consulting & Engineering
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AS sol GmbH Logo

AS sol GmbH 

Wolfwil · Since 2024

AS sol GmbH is an energy consultancy that plans and installs photovoltaic systems and provides excavator rental services. The company also offers advisory services on energy efficiency.

Rental of Machinery & EquipmentTechnical Consulting & EngineeringSolar & Photovoltaics
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Assy S.A. Logo

Assy S.A. 

Ecublens Vd · Since 1998

Assy S.A. designs and supplies automatic and semi-automatic book scanners and related accessories. The company also provides image-processing software for scanned pages and offers digitization and scanning services.

Technical Consulting & Engineering
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AS-Technics GmbH Logo

AS-Technics GmbH 

Zug · Since 2014

AS-Technics GmbH designs and engineers heating and cooling systems and provides building services engineering across project planning, tendering, realization and commissioning. Services include energy concepts, system planning, cost estimation, site supervision and project coordination for offices, residential buildings, healthcare and industrial facilities.

Technical Consulting & EngineeringPlumbing & Building Services
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ASUGS GmbH Logo

ASUGS GmbH 

Oberuzwil · Since 2021

ASUGS GmbH provides occupational safety and health services, offering consulting, audits and training for managers and employees. Its services include safety inspections, lifting-equipment checks, accident investigations and practical courses such as mobile elevating work platforms, load securing, first aid and construction machinery training.

Technical Consulting & Engineering
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Asuprel Sàrl Logo

Asuprel Sàrl 

La Chaux-De-Fonds · Since 2006

The core activity of Asuprel is the development and implementation of systems for industrial water management, including the physical-chemical water treatment process, as well as the automation of production processes through the use of automation, supervision, programming and electrical engineering.

Technical Consulting & Engineering
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ASW Engineering AG Logo

ASW Engineering AG 

Lucerne · Since 2024

The core activity of ASW Engineering AG is the planning and development of building technology, particularly in the areas of ventilation, energy and environmental technology. The company offers services such as training packages and consulting, and is active in teaching to promote young talent in the industry.

Technical Consulting & Engineering
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ASZ engineering GmbH Logo

ASZ engineering GmbH 

Effingen · Since 2015

Technical Consulting & Engineering
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ASZ Plus GmbH Logo

ASZ Plus GmbH 

Aarau · Since 2009

The core activity of ASZ Plus is consulting and supporting companies in product and process management, particularly in the areas of product safety, CE marking, product management, process management, project management and problem solving. The company offers services such as risk management, safety concept, safety-compliant development with documentation and process optimization.

Technical Consulting & Engineering
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AT Center GmbH Logo

AT Center GmbH 

Volketswil · Since 2007

AT Center is a service company specializing in the planning, design, commissioning, maintenance and support of plants. The core activities include consulting and planning, commissioning, control, instruction, service, maintenance, troubleshooting and repair, as well as training. Additionally, the company also offers rental UPS systems.

Technical Consulting & Engineering
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A - TECH testing GmbH Logo

A - TECH testing GmbH 

Oberlunkhofen · Since 2008

The core activity of A-TECH Testing GmbH is the development, delivery and support of measurement technology solutions, particularly in the field of environmental measurement technology, as well as the representation of foreign manufacturers of measuring instruments in Switzerland. The company offers a wide range of services, including consulting, planning, installation, maintenance, service, analysis and visualization, to support customers in solving measurement and testing problems.

Technical Consulting & Engineering
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Ate GmbH Logo

Ate GmbH 

Grossaffoltern · Since 2022

The core activity of Ate GmbH is the implementation of validations, verifications and certifications in the areas of quality management, environmental management and occupational health and safety management. This includes in particular: certifications according to international standards such as ISO 9001, ISO 14001 and ISO 45001; validations and verifications for life cycle assessments according to ISO 14040ff; conducting operational checks in the automotive and transport industry; checks in the areas of wastewater, waste disposal and storage of water-polluting liquids; and the awarding of environmental labels and accreditations. The company offers these services to promote the environmental performance, quality performance and safety and health performance of private and public organizations.

Technical Consulting & EngineeringTesting & Inspection CentersSustainability Sector
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Atelier ellipse, Anken Zhao Pierre Logo

Atelier ellipse, Anken Zhao Pierre 

Bulle · Since 2009

The core activity of Atelier Ellipse is to provide solutions for architects, planning offices, property managers, construction companies and suppliers in the construction industry. This includes, in particular: creation of technical drawings (DAO) using the product 'Le Traceur'; provision of training and courses in the use of Autodesk software (AUTOCAD 2D/3D); creation of solutions for communication and visualization of construction projects; and project management, including overall project execution (tendering, construction sites, representation of the client, etc.). The company positions itself as a service provider for the construction industry, offering innovative solutions to support its customers in their activities.

Technical Consulting & Engineering
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Atelier Klang und Raum GmbH Logo

Atelier Klang und Raum GmbH 

Zurich · Since 2016

The company 'Atelier Klang und Raum' specializes in designing spaces from an acoustic perspective. The core activity involves analyzing and optimizing the acoustics in various rooms such as restaurants, offices, music rooms, and living spaces. This includes conducting measurements, creating dossiers and feasibility studies, advising architects and clients, and developing solutions for improved acoustics. The company also offers services such as room design, acoustic consulting, and music production.

Technical Consulting & Engineering
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Atelier Sedlacek Logo

Atelier Sedlacek 

Grenchen · Since 1996

Atelier Sedlacek develops and manufactures fixtures as well as precision and ultraprecision machine tools and provides related engineering services. Its offerings include design, CAD/CAM/FEM simulations, calculations, machining, quality management, consulting and training, with products marketed under the µthos® name.

Technical Consulting & Engineering
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Ativ Insourcing, Roland Hänni Logo

Ativ Insourcing, Roland Hänni 

Zurich · Since 1995

The core activity of the company, activ Insourcing, consists of providing interim management services, particularly in the areas of senior engineering and project management, mainly in mechanical engineering, plant engineering, vehicle construction and equipment construction. The company offers interim project management, coaching and development services to companies that require temporary support in these areas.

Technical Consulting & Engineering
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Atlas International AG Logo

Atlas International AG 

Zug · Since 2007

The company ATLAS International offers a wide range of solutions in the areas of road traffic, vehicle registration, inspection, safety and special equipment.

Technical Consulting & EngineeringTransport Infrastructure Companies
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Atlas optimization GmbH Logo

Atlas optimization GmbH 

Aarau · Since 2021

The core activity of Atlas Optimization GmbH is the application of mathematical optimization and machine learning methods to solve complex problems in various fields. The specific activities include: * Optimization: Development and application of algorithms for solving optimization problems, including Linear Programming, Quadratic Programming, Semidefinite Programming, Mixed Integer Programming, and Dynamic Programming. * Machine Learning: Development and application of machine learning models to solve problems such as classification, regression, dimensionality reduction, and reinforcement learning. * Consulting and Services: Provision of consulting services and software solutions to support customers in solving optimization and machine learning problems. * Courses and Tutorials: Provision of courses and tutorials to impart knowledge and skills in the fields of optimization and machine learning. The application areas of the core activities include, among others: * Optimal Design * Experimental Design * Scheduling * Transportation and Material Flow * Optimal Estimation * Parameter Estimation * Function Estimation * Estimation of Correlation Structures * Uncertainty Assessment * Optimal Control * System Analysis * Planning Problems * Robust Optimal Control * Stochastic Optimal Control * Reinforcement Learning

Technical Consulting & Engineering
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Atlas Umwelt AG Logo

Atlas Umwelt AG 

Rotkreuz · Since 2012

The core activity of Atlas Umwelt AG is the planning, execution and maintenance of facilities in the field of energy efficiency and network quality, particularly with a view to optimizing and protecting facilities as well as improving the lifespan of facilities. The company offers consulting, delivery, installation, commissioning and technical support, and focuses on measuring, planning and implementing measures to improve network quality.

Technical Consulting & EngineeringElectrical Planning & Installation
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.
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