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company directory

Winti Treuhand GmbH 

Winterthur · Since 2022

Winti Treuhand GmbH provides fiduciary and accounting services, including ongoing bookkeeping, preparation of financial statements, VAT returns and payroll processing. The firm also assists private clients with tax returns, tax representation, budget advice and support in debt-related situations.

WiREI AG 

Winterthur · Since 2021

The core activity of WiREI AG is the realization and renovation of real estate, particularly single-family and multi-family homes, as well as property management. This includes new constructions, renovations and conversions of existing buildings, with the goal of creating sustainable living and residential spaces.

Witti Team Training GmbH 

Winterthur · Since 1999

Witti Team Training GmbH delivers hands-on outdoor team trainings using the BAGGER method, where teams complete a real construction assignment to practise project planning, roles, communication and responsibility. Services include mini-excavator instruction, trainer-led feedback sessions and a documented participant debrief.

W. Moser AG Ing. Unternehmung 

Winterthur · Since 1982

The core activity of W. Moser AG is the conception, optimization and development of demand-oriented solutions for industrial plants, particularly in the field of pumps and heat exchangers. The company offers a wide range of products and services, including the supply of pumps, heat exchangers, cooling towers and ice storage systems, as well as service, consulting, training, maintenance and repair of these products.

WOHGA GmbH 

Winterthur · Since 2020

WOHGA GmbH organises the WOHGA spring fair focused on living, house and garden. The event brings together exhibitors showcasing interior and exterior showrooms, products and services for building and renovation, as well as a culinary area and rotating special exhibition zones.

Wohnbaugenossenschaft Etzberg Winterthur-Seen 

Winterthur · Since 1966

The company's core activity is the promotion and support of housing cooperatives in Switzerland, particularly through consulting, further education, networking and interest representation. The company also offers services such as land and property brokerage, guided tours and specialist events, and mediates apartments through a housing search platform. It also supports the founding of new cooperatives and provides consulting services for municipalities and authorities as well as for private individuals who want to sell to a cooperative.

Wohnbaugenossenschaft Noah Winterthur 

Winterthur · Since 1997

Wohnwert Invest AG 

Winterthur · Since 2022

The core activity of Wohnwert Immobilien is the professional marketing and sale of real estate, in particular exclusive properties, as well as accompanying clients through the sales process. This also includes services such as investment management, planning and construction, sales and rental, financing and total renovation of real estate.

Wolf Engineering GmbH 

Winterthur · Since 2015

Wolf Engineering GmbH provides building automation solutions and related infrastructure services. The company offers consulting, planning, project engineering, implementation, support, operation and service for building automation systems.

Wolfram Industrie GmbH 

Winterthur · Since 2018

The company is a manufacturer of durable components, particularly welding electrodes, for industrial customers. The core activity encompasses the development, production and delivery of metallurgical solutions and products tailored to the needs of the customers.

Woodzh GmbH 

Winterthur · Since 2021

Woodzh GmbH is a woodworking firm that produces custom-made furniture and provides interior fit-outs, assemblies and repair services.

WOWIN GMBH 

Winterthur · Since 2021

The core activity of WoWin includes the trade of motorhomes, including the sale of new and used vehicles, as well as the rental of motorhomes. Additionally, the company offers services such as preparation and sale of motorhome accessories. Furthermore, WoWin supports customers in marketing and selling their own motorhomes by taking over the entire communication and sales process.

WPD Niederhauser 

Winterthur · Since 2008

WPD Niederhauser provides accounting and tax services for SMEs and other organizations. Its services include financial accounting and balance-sheet preparation, VAT returns, tax declarations, audit/revision services, payroll and social-insurance accounting, business consulting and company formation.

W. Rokitzky AG 

Winterthur · Since 2023

W. Rokitzky AG is an owner-operated trade company providing planning, installation, renovation and maintenance of heating, cooling, ventilation, air-conditioning and sanitary systems. The company also delivers service and on-call emergency support, consulting and expert reports, and integrates renewable technologies such as heat pumps and thermal solar systems into building services.

Wumex Digital, Bunjaku 

Winterthur · Since 2021

Wumex Digital, Bunjaku is a digital family management platform that centralizes documents, tasks and deadlines. The service provides modular features (dashboard, contacts, invoices, finances, insurance, etc.) and an AI feature (AI Hana) for document recognition and reminders; user data is stored in Switzerland and the site states compliance with revDSG and GDPR where applicable.

Wunschwerkstatt Winterthur Sarah Meili 

Winterthur · Since 2021

The core activity of Wunschwerkstatt Winterthur is coaching, particularly: personal development and self-love for adults, playful coaching for children, and Access Bars, a method for deep relaxation and resolving blockages. The company offers individual coaching and courses to support people in their desired changes and personal development processes.

WYLER AG, Neigungsmesssysteme 

Winterthur · Since 1991

The core activity of WYLER AG is the development, manufacture and distribution of high-precision measuring instruments and systems for inclination measurements.

Wyss Wassertechnik AG 

Winterthur · Since 2010

Wyss Wassertechnik is a provider of services and solutions for industrial water treatment, water purification and cleaning of water-carrying systems. The core activities include: Water treatment: development and implementation of systems for the treatment of water for industrial applications. Water treatment: application of chemical solutions and other technologies for the treatment of water in industrial processes. Decalcification: removal of minerals and other impurities from water and water-carrying systems. Service and consulting: provision of service, maintenance and repair of water treatment plants as well as consulting and training of customers. The company thus offers a comprehensive range of services and solutions for industrial water treatment and purification.

Xandracom GmbH 

Winterthur · Since 2004

The core activity of Xandracom is to advise and support companies and individuals in the areas of communication, conflict management, and organizational consulting. This specifically includes: Coaching and communication consulting, Conflict management and resolution, Organizational consulting and development, Moderation of workshops and events, Accompaniment of change and development processes, Leadership and team development. Xandracom offers these services as an independent consulting firm and works with a network of specialists.

YAKO Schweiz GmbH 

Winterthur · Since 2016

YAKO Schweiz GmbH is a travel agency offering package tours, tailor-made individual itineraries, city trips and group travel, and providing travel consultation and booking services. The agency arranges flights and hotel bookings and can be contacted by phone or email.

yellowbit, h. chiapolini & partner 

Winterthur · Since 1999

yellowbit, h. chiapolini & partner provides language services alongside project-management and IT/business consulting. Services listed on the website include individual and group courses plus translation and proofreading in German and French, as well as project leadership, business analysis, solution specification and training in business informatics, project management, organization and quality assurance.

YOCO Your Communication GmbH 

Winterthur · Since 2002

The core activity of YOCO Your Communication GmbH is the provision of services in the field of Brand Design and Integrated Communication, including: Brand Design, Digital Design, Print Design, conception and design of websites, project management and implementation of trade fair and market organizations. The company supports customers in strengthening their brand and offers comprehensive services for the development and implementation of communication strategies.

Yoisho - Fulgieri Trading Card Shop 

Winterthur · Since 2021

The company is an online retailer for Yu-Gi-Oh! and Pokémon cards, offering a wide selection of individual cards, editions, and rarities, and specializes in the sale and consulting of collectors and players.

Yumetofu GmbH 

Winterthur · Since 2022

The core activity of YUMETOFU is the production and sale of tofu products, including tofu, soy drinks and okara. The company produces authentic tofu and also offers recipes, gift cards and subscriptions.

Zahntechniker Heinz Venosta, Wörgl (AT), Zweigniederlassung Winterthur 

Winterthur · Since 2017

Zahntechniker Heinz Venosta, Wörgl (AT), Zweigniederlassung Winterthur is a dental laboratory producing crowns, bridges, full-ceramic and implant-supported restorations. It also provides prosthetic and inlay work, attachment and milling-related services, plus repairs, color matching and try-ins.

Zahn Werk Vogel 

Winterthur · Since 2011

The core activity of the company "Zahn Werk Vogel" is the manufacture and production of dental prosthetics and dental products, such as rails, prosthetics, hybrid prosthetics and ceramic products, in a dental laboratory.

Zauberland GmbH 

Winterthur · Since 2011

The company's core activity is the care of children from 3 months to kindergarten age in a family-like atmosphere, with a comprehensive care offer based on pedagogical concepts such as Emmi Pickler and Montessori.

ZAVODSKY Switzerland GmbH 

Winterthur · Since 2021

The core activity of ZAVODSKY Switzerland is the development, production and distribution of high-quality LED bulbs, particularly the BRACE brand, which is characterized by its quality, durability and unique design.

Z Designstudio GmbH 

Winterthur · Since 2016

Z Designstudio is a company specialized in the fields of Industrial Design, Interior Design and Engineering. The core activity of the company consists of developing and realizing projects in the areas of product development, furniture development and interior architecture. The company offers services such as product design, interior design and engineering services, and develops individual solutions for its clients.

Zehnder & Co 

Winterthur · Since 1996

Zehnder & Co is a construction and architectural firm providing consulting, design and permit submissions, execution planning, site supervision and turnkey construction services. Its offerings include new builds, conversions, renovations, energy-related refurbishments and timber construction.

Zehnder General-Bau AG 

Winterthur · Since 1982

Zehnder General-Bau AG is a construction company and general contractor providing planning and execution services, including consulting, permit submissions, cost estimation, detailed planning and construction management. Services cover new construction, conversions, renovations, energy-related refurbishments, turnkey projects and timber construction.

Zehnder & Kälin AG 

Winterthur · Since 2004

The core activity of zehnder & kälin ag is the provision of services in the field of building physics and acoustics. This includes in particular: * Noise protection: Assessment of external noise situations, preparation of noise reports and clarification of permit feasibility * Sound insulation: Evidence according to SIA 181, sound insulation reports and expert opinions, building acoustic measurements * Room acoustics: Ensuring adequate room acoustics and speech intelligibility in indoor spaces, calculation and dimensioning of reverberation times * Building physics: Evidence for thermal, sound and moisture protection, condition analyses, expert opinions and renovation concepts for building renovations * Energy efficiency: Evidence for Minergie, -P, -A and -Eco as well as GEAKplus, summer heat protection according to SIA 180 The company offers these services for various construction projects, such as new buildings, renovations and conversions, and works with architects, engineers and builders in the process.

Zeitzeichen, Winterthur - Stiftung zur Erhaltung lokaler Kulturgüter 

Winterthur · Since 2004

The core activity of the company 'Zeitzeichen, Winterthur' consists of collecting, preserving and conveying everyday objects that serve as witnesses to everyday life and local cultural assets. In doing so, the company also supports and relieves individuals when clearing houses or apartments by collecting seemingly worthless finds and conveying them to suitable archives, collections and museums.

Zentris AG 

Winterthur · Since 2007

The core activity of Zentris AG is to support children and adolescents through the product "Kinder-Cash" (a piggy bank and accompanying materials) in imparting financial education and important human qualities such as planning, organization, and self-discipline. The company distributes its products to parents and schools and also offers teaching materials and resources for classroom use.

Zentrum Eule GmbH 

Winterthur · Since 2020

The Eule Centre is a state-recognized private school specializing in individual support for children and adolescents. The company's core activity is to offer a combined teaching approach, where teachers at school and parents at home jointly support children and adolescents. The teaching includes both classroom hours at school and individual projects at home, which are accompanied and documented by parents and teachers together.

Zentrum für Bewusstseinsentwicklung GmbH 

Winterthur · Since 2022

The company offers services in the field of consciousness development, meditation courses, shamanism, hypnosis and trauma therapy. It also conducts workshops and courses on topics such as mindfulness meditation, chakra meditation and morphic field.

Zentrum für Ernährungsmedizin Winterthur GmbH 

Winterthur · Since 2013

The core activity of Zermed Zentrum für Ernährungsmedizin Winterthur GmbH is nutritional counseling and therapy, particularly in the areas of weight management, obesity, metabolic medicine, gestational diabetes, and food intolerance. The company offers individual consultations and therapies provided by qualified nutritionists and scientists to support patients in improving their eating habits, weight, and overall health in the long term.

Zentrum für Urologie Lindberg AG 

Winterthur · Since 2022

The company is a medical center specializing in the treatment of urological diseases. The core activity includes the diagnosis, treatment and surgical care of patients with urological problems, including the treatment of urological cancers. The center also offers a 24-hour emergency service and works closely with other specialist physicians and clinics to ensure comprehensive patient care.

zero Grafikstudio, C. Rohr 

Winterthur · Since 2023

The core activity of ze:ro Grafikstudio is the creation of creative and strategically effective design solutions, particularly in the areas of graphic design, branding, editorial design, packaging design and illustration. The company offers services such as the creation of brand images, layouts, editorials and packaging designs, and supports small and medium-sized enterprises in the development of their visual identity.

Ziltener & Partner Gartenbau AG 

Winterthur · Since 1998

The core activity of Ziltener & Partner Gartenbau AG is the provision of services in the field of gardening and garden maintenance, including: maintenance work (care of gardens, surroundings, parks and commercial areas), new installations (garden new installations for single and multi-family houses), winter services (snow removal on private properties and company premises), plantings (new plantings, redesigns, summer flowers, lawns and lawn renovation) and squares and paving (construction of paths and squares with bonded stone or plate coverings, paving or chaussées). The company offers these services to both private individuals and business customers in the Winterthur area.

ZimtDesign GmbH 

Winterthur · Since 2010

The core activity of ZimtDesign GmbH is the development and creation of websites and mobile applications (apps).

Zindel Immobilien Treuhand GmbH 

Winterthur · Since 2014

The core activity of ZINDEL Immobilien Treuhand GmbH consists of two main areas: 1. **Real Estate Management**: The company offers services in the field of real estate management, including the management of rental properties, exterior renovations, additions, conversions and interior renovations. 2. **Accounting and Tax Consulting**: ZINDEL Immobilien Treuhand GmbH also provides accounting services for sole proprietorships and small businesses, including the preparation of annual financial statements and support with tax returns.

Zuberbühler Zahntechnik GmbH 

Winterthur · Since 2001

Zuberbühler Zahntechnik GmbH is a dental laboratory specializing in the manufacture of removable prostheses and model casting. The core activity includes the production of various types of dental prostheses, such as full dentures, partial dentures, clip-on dentures, implant-supported dentures, conventional clasp frameworks, precision attachments and specifically also peri-over-denture.

zubermax gmbh 

Winterthur · Since 2018

The core activity of Zubermax GmbH is systemic organizational consulting, coaching and organizational development for companies, particularly in the areas of strategy development, project management and transformation. The focus is on resolving blockages and developing practical concepts for complex organizations and project landscapes.

Zuellig Immobilienbewirtschaftung AG 

Winterthur · Since 1974

ZuMo AG 

Winterthur · Since 1989

Zumo rooM AG 

Winterthur · Since 2020

The core activity of ZuMo AG encompasses three main areas: 1. **Architecture**: The company provides architectural services, including the planning and design of new buildings, conversions, and renovations. 2. **Construction Realization**: ZuMo AG takes care of the construction realization of projects, i.e., the implementation of architectural plans into reality. 3. **Real Estate/Management**: The company offers services in the field of real estate, including marketing, management, and valuation of properties. Overall, ZuMo AG thus offers a comprehensive range of services throughout the entire life cycle of a property, from planning and realization to management and marketing.

Zünd marketraining 

Winterthur · Since 2020

Zünd marketraining provides consulting, training and coaching for corporate and personnel development, focusing on leadership training, team development, sales training and organisational development.

Zürcher Kantonale Mittelstufe 

Winterthur · Since 2024

The core activity of ZKM Verlag is the publication and sale of educational materials, particularly books and other pedagogical resources, for the school sector, with a focus on subjects such as German, mathematics, foreign languages, arts and music, nature, human and society, as well as media and computer science.

Zürcher Stiftung für Textil-Forschung 

Winterthur · Since 1951

The core activity of the Zurich Foundation for Textile Research is to support research projects in the textile industry, particularly in the areas of sustainability and energy efficiency. The foundation promotes projects by industrial and research partners that deal with new ideas on current topics in the textile industry, such as textile recycling, energy savings, and greenhouse gas emission reduction.