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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

HD-Plan GmbH Logo

HD-Plan GmbH 

Appenzell · Since 1999

The company's core activity is the planning and consulting of construction projects, particularly in the field of timber construction, as well as the promotion and use of wood as an ecological building material.

Technical Consulting & Engineering
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HDSysteme Lager- und Kommissioniertechnik AG Logo

HDSysteme Lager- und Kommissioniertechnik AG 

Stetten Sh · Since 2010

The core activity of HDSysteme Lagertechnik GmbH is the planning, development and implementation of warehouse and commissioning technology for industry and clinics. This includes consulting, needs analysis, design planning and the selection of the right storage systems, as well as the assembly, commissioning and maintenance of shelving systems, commissioning systems and storage technology. The company also offers specialized solutions for clinics, such as medical product warehouses, central warehouses, pharmacies and ward areas, as well as for industrial companies, such as pallet racking, flow-through racking and shelving systems.

Technical Consulting & Engineering
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Headworx GmbH Logo

Headworx GmbH 

Barzheim · Since 2003

The core activity of Headworx GmbH is the planning, development, delivery and maintenance of industrial combustion systems and plants, including customer-specific burner configurations, heating solutions and energy optimizations. The company also offers services such as project management, commissioning, maintenance, troubleshooting and training.

Technical Consulting & Engineering
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HEATCON GmbH Logo

HEATCON GmbH 

Gamsen · Since 2019

The core activity of HEATCON is the development and distribution of a system for remote control and monitoring of heat generators, particularly for oil, pellet and wood heating systems as well as heat pumps. The system includes hardware components such as tank and temperature sensors as well as the HEATBOX, which can be controlled and monitored via a web app. The core activity thus includes the development of hardware and software as well as the distribution of this solution for homeowners, landlords and property managers.

Technical Consulting & EngineeringElectrical Planning & Installation
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heatvolution ag Logo

heatvolution ag 

Rotkreuz · Since 2022

The core activity of heat>olution AG is to offer a neutral platform for the implementation of renewable heating solutions. In doing so, the company supports building owners in planning, financing and implementing sustainable heating systems without having to bear the investments themselves. Through the platform, installers and enablers (investors) can be brought together to realize efficient and climate-neutral heat supply solutions.

Technical Consulting & EngineeringSustainability Sector
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heeb project gmbh Logo

heeb project gmbh 

Altstätten Sg · Since 2016

heeb project gmbh produces 3D execution plans using HiCAD and provides visualization, building-permit drawings, system sections, site measurement, production and assembly planning, parts lists, and STP/DXF exports.

Technical Consulting & Engineering
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HEEREMA INTERNATIONAL GROUP SERVICES SA Logo

HEEREMA INTERNATIONAL GROUP SERVICES SA 

Geneva · Since 2009

The core activity of Heerema Group is the planning, design, transportation, installation and decommissioning of offshore facilities, particularly in the field of renewable energy, such as offshore wind farms. The company also provides engineering services, manufacturing services and solutions for the offshore industry, with a focus on sustainability and environmental compatibility.

Technical Consulting & Engineering
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HEFTI. HESS. MARTIGNONI. Aarau AG Logo

HEFTI. HESS. MARTIGNONI. Aarau AG 

Aarau · Since 1999

HEFTI. HESS. MARTIGNONI. Aarau AG provides engineering and building-services planning, including overall building-technology (HLKSE+), MEP and electrical engineering, with competencies in building automation, energy supply, photovoltaics, e-mobility, lighting, safety and fire protection.

Technical Consulting & Engineering
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HEFTI. HESS. MARTIGNONI. St. Gallen AG, Niederlassung Chur Logo

HEFTI. HESS. MARTIGNONI. St. Gallen AG, Niederlassung Chur 

Chur · Since 2023

HEFTI. HESS. MARTIGNONI. St. Gallen AG, Niederlassung Chur provides building services engineering (HLKSE+) as well as MEP and electrical engineering for building and infrastructure projects. Its services include building automation, energy supply, photovoltaics, e‑mobility, lighting, security/door engineering and fire protection.

Technical Consulting & Engineering
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HEFTI. HESS. MARTIGNONI. St. Gallen AG Logo

HEFTI. HESS. MARTIGNONI. St. Gallen AG 

St. Gallen · Since 2011

HEFTI. HESS. MARTIGNONI. St. Gallen AG is a building-services engineering firm providing electrical and multidisciplinary building-technology planning (HLKSE+), offering services such as energy supply, HVAC/PL engineering, building automation, lighting design, photovoltaics and fire protection for building and infrastructure projects.

Technical Consulting & Engineering
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HEFTI. HESS. MARTIGNONI. Bern AG Logo

HEFTI. HESS. MARTIGNONI. Bern AG 

Bern · Since 2007

HEFTI. HESS. MARTIGNONI. Bern AG is a company within the HHM Gruppe providing building services planning (HLKSE+) and electrical engineering. Its services include energy supply, lighting concepts, building automation, fire protection planning and overall coordination/BIM.

Technical Consulting & Engineering
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HEFTI. HESS. MARTIGNONI. Zug AG Logo

HEFTI. HESS. MARTIGNONI. Zug AG 

Baar · Since 2010

HEFTI. HESS. MARTIGNONI. Zug AG is part of the HHM group and provides electrical and building services engineering (HLKSE+), including energy supply, HVAC/HLKSE, lighting concepts, building automation and fire protection planning.

Technical Consulting & Engineering
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HEIMBERG & Cie SA Logo

HEIMBERG & Cie SA 

Geneva · Since 1998

The core activity of HEIMBERG & Cie SA is the provision of services in the fields of geomatics and engineering, particularly in the following areas: surveying of conditions (e.g. buildings, vegetation, levels), creation of documents for building permits (e.g. plans, sections), monitoring of construction sites (e.g. implantation, level, motion control), cadastral work (e.g. cadastral surveying, boundary determination, parcel mutation, servitudes), geomatics (e.g. acquisition, processing and dissemination of geospatial data), and creation of ownership plans for co-ownership. The company thus offers a wide range of services in the fields of geomatics, engineering and cadastral surveying.

Technical Consulting & Engineering
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Heini Geomatik AG Logo

Heini Geomatik AG 

Willisau · Since 1999

The core activity of Heini Geomatik AG is the provision of services in the field of geomatics, particularly in the areas of: official surveying, construction surveying, architectural surveying, drone surveying, construction control, GIS services (Geographic Information Systems), GIS coordination, and railway surveying. The company offers these services as a surveying office and geometer, employing correspondingly qualified personnel, including geomaticians, surveying technicians, and geomatics technicians.

Technical Consulting & Engineering
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Heinz Ehrbar Partners GmbH Logo

Heinz Ehrbar Partners GmbH 

Herrliberg · Since 2012

The core activity of Heinz Ehrbar Partners GmbH is advising organizations and companies in the planning and realization of large-scale projects, particularly in the field of infrastructure projects with a high proportion of underground construction, such as hydropower plants and transportation infrastructure. The consulting services include, among others, risk management, project and contract management, processes and organization, as well as dispute resolution.

Management ConsultingTechnical Consulting & EngineeringConstruction & Project Management
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Heinz Hofer Ingenieurbüro + Gitarrenbau-Atelier Logo

Heinz Hofer Ingenieurbüro + Gitarrenbau-Atelier 

Derendingen · Since 2002

The company's core activity is the development, manufacture, restoration and repair of guitars and stringed instruments, including custom designs, modifications and analyses, as well as consulting and sales of guitars.

Technical Consulting & EngineeringGeneral Goods Production
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Helbling Technik Bern AG Logo

Helbling Technik Bern AG 

Bern · Since 2004

Technical Consulting & Engineering
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HELED GmbH Logo

HELED GmbH 

Herisau · Since 2014

The core activity of HELED GmbH is the planning, development and implementation of lighting solutions of all kinds, particularly in the field of LED lighting technology. This includes consulting, planning, procurement, installation and after-sales service for various lighting applications, such as interior lighting, exterior lighting, workplace lighting, display case lighting, artwork lighting and special applications like the restoration of antique lamps with modern technology.

Technical Consulting & EngineeringElectrical Planning & Installation
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Hélène Fruteau de Laclos - Methaconsult Logo

Hélène Fruteau de Laclos - Methaconsult 

Préverenges · Since 2012

The core activity of Methaconsult is consulting, expertise and assistance in the field of methanization, i.e. the conversion of biomass into biogas, as well as the treatment of waste and wastewater. The company offers a comprehensive range of services to support customers in planning, implementing and operating methanization plants.

Technical Consulting & Engineering
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hellblau Petra Waldinsperger Matter Logo

hellblau Petra Waldinsperger Matter 

Zurich · Since 2007

hellblau Petra Waldinsperger Matter provides lighting design, consultancy, concept development and implementation planning with construction supervision. Projects include architecture, public space, exhibitions, theatre/dance and art.

Technical Consulting & Engineering
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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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