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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.