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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
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3'493 companies found

Hauskunft GmbH Logo

Hauskunft GmbH 

Winterthur · Since 2024

The company Hauskunft GmbH primarily deals with services in the field of monument preservation and building stock. The core activities include: on-site inspections and archive research, description and evaluation of objects, creation of expert opinions on the worthiness of protection of buildings, creation of inventory lists for protected monuments, and consulting and support for construction projects in a historical context. The company thus provides expert knowledge and services to support and preserve the handling of historic buildings and sites.

Architecture Firms
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HAWAdoc AG Logo

HAWAdoc AG 

Winterthur · Since 1998

The core activity of hawadoc AG is to provide services and solutions for the Swiss healthcare system, particularly for physician networks, medical practices, and health insurers. This includes, among other things: The provision of the family doctor model and the promotion of cooperation between patients, physicians, and health insurers; The administration of physician networks, including member management, contract negotiation, data management, accounting, marketing, and communication; The provision of consulting services, such as trust services, debtor management, and business management consulting; The provision of tools and platforms for collaboration and communication between healthcare stakeholders; The organization of continuing education and quality circles for medical personnel; The management of patient data and the provision of invoice printing and mailing services.

Administrative Services
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H&C Treuhand AG Logo

H&C Treuhand AG 

Winterthur · Since 2021

The core activity of HC Treuhand AG is the provision of services in the field of financial and corporate consulting, particularly in the areas of: financial accounting, payroll accounting, tax consulting, digitalization, corporate consulting, and real estate. The company thus offers comprehensive consulting and services for companies and private individuals in the areas of finance, taxes, and corporate management.

Fiduciary Offices
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Heiligberg Institut Logo

Heiligberg Institut 

Winterthur · Since 1998

The Heiligberg Institute offers its own movement school with weekly ongoing group and individual sessions in prevention and therapy. The company's core activity is the application and dissemination of Psychosomatic Functional Learning (PSFL), a movement system developed by Bet Hauschild-Sutter. This includes conducting courses, workshops and individual sessions in movement design, dance therapy and solution-focused work. The company also provides training and further education in the PSFL method and publishes books and DVDs on this topic.

Sports & Recreation Instruction
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Helg Consulting Logo

Helg Consulting 

Winterthur · Since 2011

The core activity of Helg Consulting is advising and supporting companies in change projects, particularly in the areas of: Cultural change, Corporate development, Project management, Agile transformation, Coaching, Conflict management, and Succession in family businesses. Additionally, the company offers individual coaching for executives and other decision-makers and supports the development of business models and conflict resolution in companies.

Coaching & Personal DevelopmentManagement Consulting
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Hermann Treuhand GmbH Logo

Hermann Treuhand GmbH 

Winterthur · Since 2011

The core activity of Hermann Treuhand GmbH is the provision of services in the field of finance and accounting, including trust services, consulting and services for companies and private individuals.

Fiduciary Offices
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Herzog & Vombach GmbH Logo

Herzog & Vombach GmbH 

Winterthur · Since 2015

The core activity of Herzog & Vombach is the provision of services in the field of wine and culinary arts, particularly in the areas of wine journalism, text creation and communication.

Public Relations Consulting
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Herzpraxis Winterthur GmbH Logo

Herzpraxis Winterthur GmbH 

Winterthur · Since 2024

Herzpraxis Winterthur GmbH is a cardiology practice providing non-invasive diagnostics and care for cardiovascular conditions. Services include resting and exercise ECG, ambulatory (Holter) ECG, long-term blood pressure monitoring, echocardiography and pacemaker/ICD follow-up.

Cardiology Clinics
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Heviana GmbH Logo

Heviana GmbH 

Winterthur · Since 2020

The core activity of Heviana GmbH is the accompaniment and care of expectant parents and newborns by midwives, including prenatal examinations, childbirth preparation courses, childbirth assistance at the Kantonsspital Winterthur (KSW), postnatal home visits and postnatal exercise classes.

Gynecology & Obstetrics Clinics
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HFS Aqua Holding AG Logo

HFS Aqua Holding AG 

Winterthur · Since 2023

The core activity of HFS Aqua AG is the development and realization of individual solutions for drinking water and wastewater treatment. The company offers specific services and products for the treatment of drinking water and wastewater, including planning, distribution, construction, service and development.

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.