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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
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7'410 companies found

haltiner & ARCHITEKTUR AG Logo

haltiner & ARCHITEKTUR AG 

Winterthur · Since 2001

haltiner & ARCHITEKTUR AG is an architectural practice offering design, planning and consulting services for new-builds, renovations and conversions. Services include work on residential and commercial projects, competition entries and advice on handling existing building fabric and spatial organisation.

Architecture Firms
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HammerDrum AG Logo

HammerDrum AG 

Winterthur · Since 2022

Research & DevelopmentCivil Engineering Firms
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HAND IN HAND: STIFTUNG FÜR EINE NACHHALTIGE ENTWICKLUNG Logo

HAND IN HAND: STIFTUNG FÜR EINE NACHHALTIGE ENTWICKLUNG 

Winterthur · Since 2005

HAND IN HAND: STIFTUNG FÜR EINE NACHHALTIGE ENTWICKLUNG supports projects for sustainable development with a focus on environmental measures, microfinance and education and training. The foundation implements projects in Haiti including water access, soil irrigation and desalination, reforestation, village savings and loan systems, literacy and scholarship programs.

Sustainability Sector
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Handschin & Handschin GmbH Logo

Handschin & Handschin GmbH 

Winterthur · Since 2021

The core activity of Handschin & Handschin GmbH is the development, publication and distribution of educational materials for the 2nd cycle of primary school, particularly thematic editions and design books for children.

Publishing
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HannesFRiTZ GmbH Logo

HannesFRiTZ GmbH 

Winterthur · Since 2001

Trade Fair & Event Organizers
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Hansjürg Brauchli - Visualisieren & Kommunizieren Logo

Hansjürg Brauchli - Visualisieren & Kommunizieren 

Winterthur · Since 2017

The core activity of Hansjürg Brauchli's company 'Visualisieren & Kommunizieren' is to advise and support executives, particularly from the education sector, in effectively communicating and visualizing ideas and concepts. This includes the application of methods such as Sketchnoting, TED Talks, Bullet Journaling, and other visual techniques to clearly convey complex ideas and strengthen leaders in their communication.

Coaching & Personal DevelopmentAdvertising Agencies
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Hansueli Füllemann Logo

Hansueli Füllemann 

Winterthur · Since 1999

The core activity of Gewerbehaus Hard AG is the rental and management of commercial spaces. The company offers self-managed rooms for various businesses and entrepreneurs and also takes care of property management.

Property Management
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HaPeS Management- & IT-Consulting GmbH Logo

HaPeS Management- & IT-Consulting GmbH 

Winterthur · Since 2004

HaPeS Management- & IT-Consulting provides consulting and management services to companies in the field of information technology and IT. The core activities include: IT Strategy: Development and implementation of IT strategies aligned with the company's business objectives; IT Management: Organization and leadership of IT units, including optimization of services with limited resources; IT Costs and Pricing: Development of models for internal or external billing of service offerings or incurred costs; Project Audit: Site assessment, quality assurance, and accompaniment of IT projects; Service-Level-Agreements (SLA): Definition and implementation of service offerings tailored to the company's needs; Interim Management: Taking over leadership responsibilities in the IT unit when a personnel bottleneck arises or a transition phase needs to be bridged.

Management ConsultingIT Consulting & Services
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Harpo Drain AG Logo

Harpo Drain AG 

Winterthur · Since 2014

The core activity of Harpo Drain AG is the development, production and distribution of roof drains and related accessories, particularly in the field of flat roof water drainage systems in modular design made of glass fiber reinforced polyester (GFK).

Plastics Industry
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Hartmann Gartenbau GmbH Logo

Hartmann Gartenbau GmbH 

Winterthur · Since 2009

The core activity of Hartmann Gartenbau GmbH is the planning, design, construction and maintenance of gardens in and around Winterthur. This includes specific services such as: garden planning and design, laying of surfaces, plantings, rock gardens, walls, lawns and turf, construction of privacy screens, steel structures in the garden, water features and fences, garden maintenance and upkeep, construction of playgrounds and lighting systems, winter services, and the sale of Christmas trees. The company thus offers comprehensive services for the design and maintenance of gardens.

Horticulture & Landscaping
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HARWY GmbH Logo

HARWY GmbH 

Winterthur · Since 2021

The core activity of HARWY is the development and production of individually designed sports jerseys and clothing for sports teams, particularly in the area of Swiss Flag Football. The company offers tailored solutions for sports teams to professionalize their appearance and strengthen their identity through unique jersey designs.

Textile & Clothing Industry
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Haus der Berufsbildung AG Logo

Haus der Berufsbildung AG 

Winterthur · Since 2000

Haus der Berufsbildung AG provides training services and seminars to support apprentices and vocational trainers, including workshops such as “Positive Leadership” and seminars on qualification interviews, plus practical learning tools and materials for vocational education.

Continuing Education Institutes
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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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Hecht und Heck Consulting GmbH Logo

Hecht und Heck Consulting GmbH 

Winterthur · Since 2015

The core activity of Hecht & Heck Consulting GmbH is the consulting and optimization of controlling processes for companies, particularly in the areas of finance, accounting and risk management. The company supports its customers in implementing industry-specific controlling processes, developing structures and processes, as well as selecting and implementing suitable tools. The goal is to provide customers with reliable and transparent information for the operational and strategic management of their company.

Management Consulting
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Heilart Corinne A. Zollinger Logo

Heilart Corinne A. Zollinger 

Winterthur · Since 2021

The core activity of the company 'Heilart - Corinne A. Zollinger' is the application and dissemination of Traditional European Naturopathy (TEN) in the form of various therapies and offers, such as phytotherapy, foot reflex zone therapy, nutritional therapy and holistic massage.

Naturopathic Clinics
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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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Heinrich Landschaftsarchitektur GmbH Logo

Heinrich Landschaftsarchitektur GmbH 

Winterthur · Since 2013

The company is an architecture and planning firm specializing in the planning and realization of various construction projects, including schools, residential buildings, commercial buildings, recreational facilities, parks, and public spaces. The company's core activity includes conducting competitions, feasibility studies, master plans, test plans, and the realization of construction projects in various phases, from planning to completion.

Architecture Firms
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Heinrich Peter AG Logo

Heinrich Peter AG 

Winterthur · Since 1972

The core activity of Hch. Peter AG is the execution of earthworks, in particular excavation, demolition, building dismantling, concrete and bridge demolition.

Site PreparationReal Estate Project Development
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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.