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Adrett Treuhand, Leyla Güler Yücesan 

Winterthur · Since 2016

The core activity of Adrett Treuhand is the provision of trust and accounting services for companies and private individuals. This includes in particular: Tax services (preparation of tax returns, tax optimization, review of tax assessments and tax invoices), Accounting (management of financial accounting, accounts receivable and accounts payable, payment transactions), Payroll accounting (management of payroll accounting, preparation of payroll, social insurance and withholding tax statements), Personnel administration (notifications to social insurance, preparation of payroll certificates), Preparation of annual and interim financial statements as well as VAT returns.

AGI AG für Isolierungen, Zweigniederlassung Winterthur 

Winterthur · Since 1991

AGI AG für Isolierungen, Zweigniederlassung Winterthur provides services in technical insulation and structural fire protection. Offerings include consulting and planning, BIM planning, product management and trade (including aerogel and vacuum insulation), project realization (insulation, fire protection, ductwork and metal fabrication) and maintenance.

AKSIS Service GmbH 

Winterthur · Since 2017

The core activity of AKSIS Service GmbH is the provision of cleaning services of all kinds, including private cleaning in households, window cleaning and janitorial services.

Architekten Kollektiv AG 

Winterthur · Since 2001

The company 'Architekten-Kollektiv' is an architectural firm specializing in the planning and realization of construction projects. The core activities include the creation of designs, plans and construction management for various types of buildings and facilities, such as residential houses, public buildings, sacred buildings, monuments and other structures. The company also offers services in the areas of monument preservation, competitions and publications.

ARConnect GmbH 

Winterthur · Since 2018

The company ARConnectING provides engineering and marketing services, including offshore engineering, design and plant engineering, mechanics, product development, prototype development, jig construction, procurement, corporate identity (CI), search engine marketing (SEM), search engine optimization (SEO), social media marketing (SMM) and web design. The company's core activity is the creation of customized solutions for customers in the fields of engineering and marketing.

ArON Services 244 GmbH 

Winterthur · Since 2021

The core activity of ArON Services 244 GmbH is the planning, commissioning, maintenance and repair of ventilation systems, as well as the associated consulting and documentation.

Art of Work Personalberatung AG 

Winterthur · Since 2008

Art of Work Personalberatung AG is a recruitment and staffing firm that connects employers with candidates. It specialises in office/business administration, IT and engineering roles and provides permanent placement, temporary staffing, headhunting, candidate search and application coaching.

A. Saesseli & Co AG 

Winterthur · Since 1950

A. Saesseli & Co AG is an electrical wholesaler supplying electricians, power utilities, industry and switchgear/control-panel builders with electrical products and components.

Asio Finanz AG 

Winterthur · Since 2013

The core activity of Asio Finanz AG is independent wealth management for private clients and companies, including financial planning, pension planning, asset management and pension fund consulting.

Atelier Feinschliff Tamara Benedetto Goldschmied 

Winterthur · Since 2011

The core activity of Atelier Feinschliff is the creation, repair and sale of jewelry, particularly by a goldsmith. The specific activities include: creation of jewelry pieces, galvanization, sketch design, alterations and repairs of jewelry, sale of gemstones, energetic jewelry and pearls, pearl knotting, and refreshing of jewelry pieces. The company offers these services in a studio located in Winterthur-Wülflingen.

BEAUTYCLINIC AG 

Winterthur · Since 2021

BEAUTYCLINIC AG provides aesthetic medical and cosmetic services, offering surgical and non‑surgical procedures, laser treatments, skin and hair therapies, and body‑contouring services. The practice also lists intimate aesthetic procedures, IV‑drip/longevity treatments, combined skin‑rejuvenation programs and an online shop for skincare products.

Bedac GmbH 

Winterthur · Since 2008

The core activity of Bedac GmbH is building automation, particularly the planning and implementation of automation solutions for high-rise buildings, including office buildings, hotels, schools, hospitals, shopping centers, data centers, residential buildings and industrial buildings.

Beratende Ingenieure Scherler AG 

Winterthur · Since 1992

Beratende Ingenieure Scherler AG provides engineering consultancy and technical planning services for building and infrastructure projects. Core competencies include electrical engineering, mobility, energy, automation, IT & communications, safety and fire protection, lighting and digital construction/BIM, with services such as consulting, general planning, integrated testing and certification.

Beziehungsquelle Désirée Joy Zimmerli 

Winterthur · Since 2023

The core activity of the company 'Beziehungsquelle' is the provision of psychological counseling services, particularly in the areas of individual counseling, couple counseling, and family counseling. The counseling focuses on a solution-oriented and resource-oriented approach, addressing the distressing situation in a holistic manner and considering it within a positive human image.

Bischof Grafik 

Winterthur · Since 2012

The company 'Bischof Grafik' offers graphic services and products, including logos, clothing, cards, weekly planners, sticky notes, notebooks, stickers, children's books, Christmas cards, postcards, crosswords and folding cards. It is a graphic design and printing company that provides creative solutions for various customer needs.

BOVET Bauen und Beraten GmbH 

Winterthur · Since 2016

Bovet Bauen und Beraten GmbH is a consulting and services company specializing in the areas of owner representation, construction consulting and construction execution. The company's core activity is to support and advise customers in the planning, design and realization of construction projects. This includes, among other things, the creation of concepts, the implementation of construction projects, consulting on the selection of materials and the supervision of construction execution.

Bricks Baumanagement GmbH 

Winterthur · Since 2024

The core activity of Bricks Baumanagement GmbH is professional construction project management and planning, including the implementation of feasibility analyses, tenders, construction management, quality control, cost control and client representation for private builders, companies and investors.

CARAN AG 

Winterthur · Since 2016

The core activity of CARAN AG is the development, planning, construction and marketing of residential buildings. As a general contractor and total contractor, the company offers comprehensive construction services, including project development, planning, construction and marketing of residential buildings.

Carpathia AG 

Winterthur · Since 2000

The core activity of Carpathia AG is advising and supporting companies in their digital transformation, particularly in the areas of E-Commerce and Omni-Channel. This includes the development of strategies, concepts and transformations, as well as accompanying companies in the implementation of these processes. The company also offers expertise in the areas of commerce, methodology and cultural change.

Cawi Treuhand, Brigitte Gallucci-Widmer 

Winterthur · Since 1997

Cawi Treuhand, Brigitte Gallucci-Widmer provides tax consulting, fiduciary and accounting services, inheritance advisory services, and real-estate/property management. Services include payroll administration, VAT returns, annual financial statements, company-law advice and succession planning.