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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,816 companies indexed · Last updated: today

DirectorySearch the company directory

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company directory

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Cityaltnau

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Matching companies

198 companies found

A1 PC Service GmbH

Altnau · Since 2014

IT Consulting & Services

Aeberhard's Nähatelier Fabijenna

Altnau · Since 2021

Textile & Clothing Industry

Aeolus GmbH

Altnau · Since 2019

Holding Companies

ALPARU Finanz Holding AG

Altnau · Since 2020

Holding Companies

ALRUPA Finanz Holding AG

Altnau · Since 2015

Holding Companies

Ansu AG

Altnau · Since 1966

Property Management

Arno Holding AG

Altnau · Since 2022

Holding Companies

AS Immo Thurgau AG

Altnau · Since 2018

Real Estate Project Development

Egger Altnau GmbH

Altnau · Since 2010

Real Estate Project Development

Bodensee-Segel- und Motorbootschule Altnau Charly Böhler

Altnau · Since 1992

Sports & Recreation Instruction

Bodensee Technologie AG

Altnau · Since 1992

Research & Development

Brubiag GmbH

Altnau · Since 2004

Construction & Project ManagementProperty Management

Business Office Services Patrizia Gubser

Altnau · Since 2024

Administrative Services

Carrosserie Peter Meier

Altnau · Since 2003

Auto Repair Shops

das Sommerladencafe Petra Steigmann

Altnau · Since 2022

dipalma.ch - Inh. Vito Di Palma

Altnau · Since 2022

Fiduciary Offices

Dreher's Legen & Pflegen GmbH

Altnau · Since 2000

Flooring & Tiling

EHRATRADE ENGINEERING K. Ehrat

Altnau · Since 1991

Technical Consulting & Engineering

Energieberatung Aeberhard

Altnau · Since 2011

Technical Consulting & Engineering

Fritz Storz

Altnau · Since 2018

Timber Construction & Carpentry

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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.