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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

Filters

IndustryBusiness & Technical ServicesIndustryTechnical Consulting & Engineering

Search results

Matching companies

10'496 companies found

OK Planung GmbH

Basel · Since 2019

Technical Consulting & Engineering

Olaf Gödeke Pyrotechnics

Schattdorf · Since 2024

Technical Consulting & Engineering

Olitog GmbH

S-Chanf · Since 2018

Technical Consulting & Engineering

Olivier Amrein

Betten · Since 2024

Technical Consulting & Engineering

OLOFSSON PER

Zurich · Since 2024

Technical Consulting & Engineering

OM Galvano Consulting Sàrl

La Chaux-De-Fonds · Since 2014

Technical Consulting & Engineering

OMPEG GmbH

Bühler · Since 2005

Technical Consulting & EngineeringMechanical Engineering IndustryPublishing

ondaka - Katja Degonda

Zurich · Since 2023

Technical Consulting & Engineering

ON DEVELOPPEMENT Sàrl

Grimisuat · Since 2007

Technical Consulting & Engineering

ONE4ALL SERVICES SAGL

Ascona · Since 2024

Technical Consulting & Engineering

Onisca Mihai

Vendlincourt · Since 2008

Technical Consulting & Engineering

ONSW Engineering GmbH

Lucerne · Since 2005

Technical Consulting & Engineering

OPCO AG

Liestal · Since 2016

Technical Consulting & Engineering

open micro factory sàrl

Cugy Vd · Since 2024

Technical Consulting & Engineering

Oprod, Pin

Posieux · Since 2024

Technical Consulting & Engineering

Opti E GmbH

Bolligen · Since 2010

Technical Consulting & Engineering

Optima Bauprozesse GmbH

Au Zh · Since 2015

Technical Consulting & EngineeringConstruction & Project ManagementGeneral Contractors

Orbital Premier Isuf Gecaj

Premier · Since 2019

Technical Consulting & Engineering

Orewa GmbH

Ormalingen · Since 2018

Technical Consulting & Engineering

Orseconsult Sagl

Bellinzona · Since 2013

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.

Per page

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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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