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Vollenweider Chocolatier Confiseur AG 

Winterthur · Since 2011

The company's core activity is the production and sale of chocolate and other sweets, including pastries, cakes, macarons and other products. The company also offers services such as courses, team events and seminar room rentals, and has a strong focus on Swiss culture and tradition.

Winco Treuhand AG 

Winterthur · Since 2019

Winco Treuhand AG provides fiduciary, business consulting and audit services for small and medium-sized enterprises and private clients. Its services include accounting and payroll, VAT and tax filings, corporate transactions (formations, conversions, liquidations), audit engagements, and hosted IT solutions such as AbaWeb and DeepBox for bookkeeping and secure file exchange.

Wohnheim für Lehrlinge Winterthur 

Winterthur · Since 2017

The company's core activity is stationary child and youth welfare, particularly the pedagogical care and support of young people with psychosocial difficulties.

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.

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.

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.