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Adéle Koller-Knüsli-Stiftung 

Winterthur · Since 1927

The core activity of the Adele Koller-Knüsli Foundation is the promotion of social projects and institutions in the Winterthur area, in particular through the provision of contributions and donations to individuals and organizations active in the Winterthur area.

A&E Gipsergeschäft GmbH 

Winterthur · Since 2016

The core activity of A&E Gipsergeschäft GmbH is the execution of plastering work, drywall construction and thermal insulation for new buildings and renovations. This includes in particular: exterior thermal insulation, fire protection measures, ceiling claddings, lightweight walls, plastering work (e.g. plastering work in interior areas) and painting work (e.g. exterior painting for facades). The company also offers consulting, planning and execution of construction projects and places emphasis on meeting the highest quality standards.

AGROLA AG 

Winterthur · Since 1967

The core activity of AGROLA includes the provision of energy products and services, in particular: * Sale of diesel, heating oil and other fuels * Installation and operation of petrol stations and charging stations for electric mobility * Distribution of wood pellets as a renewable energy source * Provision of services such as tank cleaning, ash disposal and warehouse monitoring * Sale of electricity and solar energy solutions * Development and operation of hydrogen technology and filling stations. The company positions itself as a comprehensive energy provider with a broad portfolio of products and services for private and business customers.

Agro-Office AG 

Winterthur · Since 1992

The company's core activity is the development, maintenance and provision of software solutions for financial accounting, particularly for agricultural businesses and SMEs, including features such as e-banking, invoicing, account reconciliation and payroll accounting.

AICHINGER SCHWEIZ GmbH 

Winterthur · Since 2013

AICHINGER SCHWEIZ GmbH provides shopfitting and retail furnishing services with a focus on refrigerated display furniture and fresh‑food presentation. The company offers consulting, design and project planning, manufacturing, construction coordination and service, and supplies products such as the SIRIUS® range and the ECOplus energy‑efficient line.

Allgemeine Plakatgesellschaft AG, Zweigniederlassung in Winterthur 

Winterthur · Since 1999

Allgemeine Plakatgesellschaft AG, Zweigniederlassung in Winterthur markets poster and digital out-of-home advertising spaces and provides services for planning and booking outdoor advertising campaigns. The branch offers online tools such as a product finder and booking platform and manages advertising spaces on behalf of property owners.

AM Media AG 

Winterthur · Since 2012

AM Media AG is a digital and advertising agency providing brand development, advertising, web development, e‑commerce and performance marketing services. Its offering includes strategy, design, content production, SEO/SEM, analytics and AI-based solutions for process and marketing automation.

Anlagestiftung Winterthur für Personalvorsorge (AWI) 

Winterthur · Since 1984

The company's core activity is the management of investment groups for pension funds and the selection and monitoring of asset managers on behalf of these investors. The company offers various investment solutions, including real estate and indexed investment groups, and supports its investors in implementing their investment strategies.

Aquilegia Im Garten Zuhause GmbH 

Winterthur · Since 2014

The company operates a plant center, offering plants and garden specialties. It also provides services in the field of garden design.

Arthur Weber AG, Zweigniederlassung Winterthur 

Winterthur · Since 2018

Arthur Weber AG, Zweigniederlassung Winterthur is a service and trading company offering a broad range of construction products and services. Its business areas include building technology, steel services, building services, supply systems, energy technology and metal roofing/roof sheet work; the branch also operates an online shop and provides delivery and emergency services.

art.I.schock GmbH 

Winterthur · Since 2010

art.I.schock GmbH provides integrated communications services, delivering strategy, visual identity, copywriting, content production and digital design for brands, campaigns, publications and web projects. The studio regularly collaborates with ecological, social and cultural projects and supports clients from concept through implementation.

atelier lilian caprez 

Winterthur · Since 2010

The company's core activity is the provision of photographic services.

Antonioli Coaching AG 

Winterthur · Since 2006

The company Avolio Lüscher & Partner AG (ALP) offers coaching and consulting services in the field of career management and career development. The core activities include: Career Coaching, Executive Coaching, Leadership Coaching, Onboarding Coaching, Separation Management, Newplacement, Outplacement, and Positioning. The company supports both employees and employers in shaping and further developing careers, particularly during professional changes and challenges.

Bähler Immobilien AG 

Winterthur · Since 2010

The core activity of Bähler Immobilien AG is the brokerage, management and development of real estate, particularly in the area of multi-family houses and building land in the cantons of Zurich, Thurgau or St. Gallen. This also includes consulting and construction supervision services for real estate projects.

BBS Ingenieure AG 

Winterthur · Since 1980

The core activity of BBS Ingenieure AG primarily encompasses engineering services in the field of construction project management, environmental, transportation, and civil engineering. Specific activities include: general planning and client support for industrial and central building construction; conducting feasibility studies, competitions, planning submissions, and functional total contractor submissions; procedural support, technical evaluation of bids, preparation of political award applications, and contract management; consulting and support in various project phases, including planning and implementation; and specialized services in the areas of safety and risk, as well as environmental and transportation planning.

Beat Sommer Bau GmbH 

Winterthur · Since 2013

The core activity of Scheidegger Friedhofbedarf AG is the development, production and distribution of cemetery and funeral articles, such as coffin transport vehicles, grave decorations, waste containers and other products for the cemetery and funeral industry.

Beck Schwimmbadbau AG 

Winterthur · Since 2018

The company's core activity is the planning and realization of swimming pool projects, including public indoor and outdoor pools, teaching pools, therapy pools, hotel pools and leisure pools, as well as large fountain systems. This includes services in the areas of pool construction, architecture, water treatment and building technology, as well as landscape architecture, from surveying to the implementation of renovation and new construction projects.

Bednar Steffen Architekten AG 

Winterthur · Since 2011

The core activity of the company 'Bednar Steffen Architekten AG' is the provision of architectural and planning services, including project development, design, execution and construction management, for various construction projects such as residential buildings, commercial buildings, industrial buildings, banks and public buildings.

Bertuca - Transport 

Winterthur · Since 2004

The company's core activity includes the execution of new furniture assembly, transportation and relocation services. This includes in particular: The assembly of new furniture, including complex custom-made installations; The transportation of furniture and moving goods; The execution of private and commercial relocations, including planning and organization; The disposal of old furniture. The company thus offers a comprehensive range of services in the field of furniture assembly, transportation and relocation.

Bettina Scheck Gemeinsam gelingt Lernen 

Winterthur · Since 2022

The company provides coaching and consulting services for schools, teachers, and families, particularly in the areas of school-based special education, learning therapy, and holistic family support. The core activities include: School-based special education: short-term and flexible support for schools as needed; Coaching for teachers: consulting on challenging teaching situations; Holistic family support: consulting and support for families in organizing and managing daily tasks and personal issues; Development and implementation of tools and methods to promote responsibility and independence in children and adolescents.

Bild Text Zahl GmbH 

Winterthur · Since 2015

The core activity of Bild Text Zahl GmbH is to provide services in the fields of accounting, human resources, controlling, strategy development and marketing for various companies and organizations, particularly in the cultural sector. The company also offers process accompaniment, project management and workshop design, and supports customers in the development of cultural strategies and concepts.

Bodmer soundaround 

Winterthur · Since 2015

The core activity of Amazon is providing an online trading platform for the sale of goods and services, including electronics, books, clothing, household goods, toys, and other products. In addition, Amazon also offers services such as cloud computing (Amazon Web Services), digital media (Amazon Music, Amazon Video), payment services (Amazon Pay), and logistics services (shipping through Amazon).

BONA FISCHER Bauingenieure AG 

Winterthur · Since 1990

The core activity of Bona ∙ Fischer Bauingenieure AG is the design and structural planning in civil engineering.

Bosshard Bau Beratung AG 

Winterthur · Since 2012

The core activity of Bosshard Bau Beratung AG is the planning, consulting and execution of construction projects, particularly in the following areas: Total renovation and refurbishment of residential and commercial buildings, Conversion and renovation of existing buildings, including energy-efficient renovation and historic preservation, New construction of residential and commercial buildings, including single-family and multi-family homes, Conducting architectural competitions and tenders, Owner consulting and representation, Construction management and supervision, Preparation of studies and project studies. The company thus offers comprehensive services throughout the entire construction project cycle.

Brack & Gut AG 

Winterthur · Since 2002

The core activity of Brack & Gut AG is management consulting, particularly for the watch, jewelry and crafts industries, with a focus on: Consulting (including brand and assortment strategy, succession planning), personnel placement, profile building and brand development, project-based or long-term support as an external member of the management team.

Briner Immobilien AG 

Winterthur · Since 2007

Brunner Management Beratung AG 

Winterthur · Since 2013

Brunner Management Beratung AG provides consulting, accompaniment, training and moderation services focused on leadership, communication, change management and problem solving.

b.wusst GmbH 

Winterthur · Since 2017

The company offers products and services in the areas of energy work, spirituality, and health. The core activities include: * Sales of radiation protection and interference devices, particularly for protection against 5G radiation * Provision of meditation and card sets * Distribution of dietary supplements * Conducting seminars and coaching in the area of personal development and transformation * Consulting and support for the use of Qi-Quant devices for energetic support and effect.

Cardun AG 

Winterthur · Since 1991

The company provides consulting, coaching and supervision to support companies in solving problems and improving their leadership and communication culture. The core activity of the company is to support companies in implementing a paradigm shift in their leadership and communication culture by offering tools and methods such as Spiralrhetorik®, in order to reduce interaction costs and strengthen the resources of employees.

CBC Treuhand AG 

Winterthur · Since 1993

CBC Treuhand AG provides fiduciary and administrative services, tax and legal advice, and manages financial accounting, real estate matters, and wealth and pension affairs.

clawyss treuhand gmbh 

Winterthur · Since 2018

The core activity of the company "clawyss treuhand gmbh" is the provision of services in the areas of personnel, accounting and taxes for small and medium-sized enterprises. This includes in particular: trust services, personnel management, accounting and financial accounting, tax consulting and planning, support in the founding of companies, administrative work and consulting in legal matters. The company thus offers a comprehensive range of services for companies to support them in their administrative and financial concerns.

coach-mi mirijam inauen 

Winterthur · Since 2023

The company's core activity is coaching and consulting, particularly in the following areas: individual coaching for young people and adults, team coaching for companies and organizations, resume and career counseling, job integration and placement, and seminars and workshops on topics such as communication, creativity, and brain jogging. The company also offers specialized services such as job coaching, systemic coaching, and hypnosis coaching.

Concento Immobilien GmbH 

Winterthur · Since 2014

The core activity of CONCENTO Immobilien GmbH is the brokerage and management of real estate, including the valuation, sale, rental and purchase of real estate.

concept-g AG 

Winterthur · Since 2012

The core activity of CONCEPT-G AG is consulting and planning building technology, particularly in the areas of heating, air conditioning, ventilation, sanitation and specialist coordination. The company offers individual planning, consulting and support in defining needs, evaluating energy-efficient energy concepts, calculating economic viability and performing life cycle assessments of heat generation systems. It supports customers in planning and implementing building technology projects and also provides services such as condition and vulnerability analyses, creation of energy certificates and overall project management.

Confident GmbH 

Winterthur · Since 2005

The company's core activity is the creation of marketing and communication solutions for clients, particularly the development of brand personalities, campaigns and product designs. The company offers services such as analysis, concept development, design and implementation of marketing projects and supports clients in the development of their brand and communication strategy.

CONSISTENT GmbH 

Winterthur · Since 2008

CONSISTENT GmbH provides insurance brokerage and advisory services for SMEs, with a focus on medical technology, construction & industry, and media/service sectors. Its services include policy and risk reviews, tendering and offer comparisons, claims support, and a transparency-oriented bonus model that returns commissions.

CONSULTEC Heiniger 

Winterthur · Since 2020

The core activity of Consultec is the provision of hardware and software services, particularly in the field of IT and administration for small and medium-sized enterprises (SMEs). This includes the sale, installation, training and support of software solutions as well as consulting and support for the implementation of computer and network systems.

Corbié GmbH 

Winterthur · Since 2007

The core activity of Corbie GmbH is the provision of financial and corporate consulting services, including accounting, tax returns, controlling, structural optimization and financial strategy. The company supports its customers in solving financial and entrepreneurial challenges and offers individual solutions to achieve their goals.

Corporation for Consulting AG 

Winterthur · Since 1998

Corporation for Consulting AG is an independent advisory firm specializing in personal and trust-based asset management and investment advice. Services include asset management, investment advisory mandates, rule‑based portfolio management (WCG:ROB), portfolio analysis and consolidation, financial and legal planning, and mortgage financing.

CORTI AG 

Winterthur · Since 1939

The company's core activity is the construction industry, particularly as a master builder, general contractor and developer of new construction projects, with a focus on new buildings, renovations, hazardous substance remediation, general services, natural and artificial stone work.

Creodom AG 

Winterthur · Since 2022

The company's core activity is project management in the construction industry, including services such as cost planning, scheduling, tendering, construction cost planning, design, implementation and construction management. The company supports builders, investors and architects in the timely planning and coordination of renovation and new construction projects.

cTool GmbH 

Winterthur · Since 2008

cTool GmbH develops custom web applications and digital tools for businesses. Services include a QR-invoice tool, database integration, PDF and Excel generation, plus maintenance, backup and webhosting support.

Customize AG 

Winterthur · Since 1999

Customize AG is an Abacus Gold partner that implements ERP solutions based on the Abacus Business Software and integrates third‑party applications. The company provides project management, consulting, training, customer service, service‑level agreements and ERP audits, and offers cloud and industry‑specific modules such as AbaBau, AbaImmo, AbaCare and AbaPlato.

Customize Beteiligung & Management AG 

Winterthur · Since 2009

Customize Beteiligung & Management AG is an independent distributor and implementation partner for Abacus Business Software, delivering ERP implementations. The company provides consulting, training and support services and offers cloud solutions, industry-specific Abacus modules and applications for finance, HR, project/service management and trade/production processes.

Dampflokomotiv- und Maschinenfabrik DLM AG 

Winterthur · Since 2000

The core activity of DLM AG is the development, manufacture and modernization of steam locomotives, steam engines and related components such as boilers and preheating devices. The company also offers services such as revision work, renovations and engineering projects. In addition, DLM AG develops and produces modern steam technologies that serve as an environmentally friendly alternative to diesel traction.

Della Bella AG 

Winterthur · Since 2018

Della Bella AG is the photography practice of Alessandro Della Bella. The website presents photographic projects and exhibitions, editorial and commissioned photography, and an online shop offering prints and related products.

Mavidenz Lab AG 

Winterthur · Since 2010

The Demir Lab company offers a wide range of services in the field of material testing and analysis. The company's core activities include: mechanical testing (e.g. tensile testing, impact testing), metallographic examinations (e.g. macro and micro sections, grain size determination), non-destructive testing (e.g. UT, MT, PT, VT), damage analysis and investigation, surface hardness testing (e.g. Brinell, Rockwell, Vickers), chemical analysis (e.g. spectroscopy), consulting and training in metallurgy and heat treatment, quality assurance and control (e.g. test plans, certificates of conformity, audit/acceptance). As an independent testing laboratory, the company supports customers in ensuring and verifying the quality of their products.

Diagonal Architekten AG 

Winterthur · Since 2006

Diagonal Architekten AG is an architectural firm specializing in the planning and realization of construction projects. The company's core activity includes the creation of architectural and building plans, the conduct of competitions, project development, and construction management. The company works on various projects, including residential buildings, schools, healthcare buildings, commercial buildings, and public buildings.

Diamant Weber AG 

Winterthur · Since 1987

The core activity of Diamant Weber AG is the manufacture and distribution of high-quality diamond and CBN tools, particularly for grinding and dressing processes in metalworking. The product range includes, among other things, diamond and CBN grinding tools, profile diamonds, single-grain and multi-grain dressers, dressing and profile wheels, as well as diamond and CBN forming rolls.

DLF Personal AG 

Winterthur · Since 1995

DLF Personal AG provides personnel placement and HR/payroll administration services, with a focus on the food industry—notably meat processing—and the healthcare sector. Services include recruitment, payroll processing, administrative handling of social insurance and obtaining necessary permits.