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Mabag AG 

Winterthur · Since 1979

The core activity of MABAG AG encompasses the planning, execution and consulting of construction projects in the areas of new construction, renovation and refurbishment of buildings and other structures. This includes: New construction: Construction of small new buildings, including excavation, sewerage, utility lines, concrete work, masonry, plastering, drywall and rendering. Renovation: Renovation of building envelopes, including facades and rendered external thermal insulation, as well as replacement of windows, heating systems, retaining walls, concrete work and sewerage systems. The company also offers additional services such as core drilling, concrete cutting and the creation of offers.

Marazzi Reinhardt GmbH 

Winterthur · Since 2004

Marazzi Reinhardt GmbH is an architectural firm (Architekten SIA BSA) providing design, planning and project support services. The practice works on residential buildings, renovations and extensions as well as occasional public and exhibition projects, with an emphasis on contextual response, materials and constructive clarity.

Martin Mora Treuhandberatung 

Winterthur · Since 1994

Martin Mora Treuhandberatung provides fiduciary services, accounting and payroll support, tax consultancy and audit services. The Winco Treuhand AG website lists Martin Mora as a partner with the qualification “Dipl. Experte in Rechnungslegung und Controlling” and as an authorised audit expert.

Mattenbach AG 

Winterthur · Since 1998

Mattenbach AG is a communications and media production company offering print and digital services. Its offerings include offset and digital printing, finishing and post‑press logistics, co‑packing and publishing services.

Medi Feet GmbH 

Winterthur · Since 2017

The core activity of Medi Feet GmbH is medical foot care, including podological treatments such as nail care, removal of calluses and corns, treatment of warts and nail fungus, as well as individual consultation for foot health.

Mediquant GmbH 

Winterthur · Since 2019

The core activity of the company 'Mediquant' is health promotion and therapy through a multidisciplinary team of specialists who apply various methods and techniques to support and promote the physical, emotional and spiritual health of their clients. This includes, among other things, medical consultation, laboratory diagnosis, psychosomatic basic care, acupuncture, kinesiology, foot reflex zone therapy and other alternative healing methods.

Mete Keramik GmbH 

Winterthur · Since 2009

The core activity of Mete Keramik GmbH is the laying and sale of floor and wall coverings, particularly ceramics and natural stone, as well as related services such as renovations, demolition, structural modifications and the creation of silicone joints, specifically for the private property sector, apartments and houses.

Metesan GmbH 

Winterthur · Since 2023

The core activity of Metesan GmbH is the distribution and consulting of products and solutions for the solar industry, particularly mounting systems and accessories for solar installations. The company offers individual solutions and reliable service to its customers, striving to provide innovative and high-quality products.

MSM GROUP AG 

Winterthur · Since 1996

MSM GROUP AG provides fiduciary and business advisory services, including accounting, tax returns, budgeting, business valuation, and HR and insurance administration. The firm also offers tailored fiduciary arrangements (e.g. escrow), SME financing and settlement/start-up support, legal advice through an independent law firm, and office services such as domiciliation, telephone reception and meeting-room facilities.

MSM Marve GmbH 

Winterthur · Since 2010

MSM Marve GmbH provides fiduciary services, accounting and tax advice and supports companies in financing, development and change processes. Its offerings also include HR and insurance administration, legal advice delivered by an independent law firm, SME financing and office services such as domiciliation, telephone reception and meeting facilities.