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GKO Engineering GmbH 

Winterthur · Since 2018

The core activity of GKO Engineering GmbH is planning and consulting in the field of technical building equipment (TGA), particularly in the areas of heating, ventilation, air conditioning, refrigeration, building automation, sanitary and solar systems. The company offers services such as specialized planning, special planning and specialist coordination for residential buildings, office renovations and commercial spaces, and supports architects, investors and builders in all phases of performance.

Glanz Reinigungs Service Rama 

Winterthur · Since 2020

The core activity of Glanz Reinigung is the provision of cleaning services, particularly maintenance cleaning, for private and business customers in Winterthur and its surroundings. The specific services include: maintenance cleaning for private customers, maintenance cleaning for business customers, restaurant cleaning, stairwell cleaning, window cleaning, shutter cleaning, and moving cleaning with a guarantee of acceptance. The company offers these services at a fixed hourly rate of CHF 39.80.

Glinz Bauleitungen 

Winterthur · Since 2013

The core activity of Glinz Bauleitungen is the provision of construction management services, in particular through the services of the certified construction manager Daniel Glinz.

Glitzerfee Kasper 

Winterthur · Since 2017

Glitzerfee is a fashion company specializing in the production and sale of unconventional, creative and comfortable fashion, particularly for women and girls. The company's core activity is the design, production and sale of clothing and accessories, such as skirts, dresses, pants, tops and other fashion items, all of which are manufactured in Switzerland.

Goastore GmbH 

Winterthur · Since 2014

The core activity of Goastore GmbH is the online sale of music, particularly electronic dance music and related genres such as Psy-Trance, Progressive-Trance, House, Techno, Chillout and Electronica. The company offers a wide range of music products, including CDs, vinyls and digital downloads, and ships them worldwide.

Golden-Food GmbH 

Winterthur · Since 2016

The core activity of Golden-Food GmbH is the import and sale of Greek food and delicacies, particularly olive oils, honeys, Greek spices and tea, as well as other products such as pashminas and olive wood items, with the aim of supporting Greece through direct aid.

goldhandwerk nora GmbH 

Winterthur · Since 2023

The core activity of the company "goldhandwerk nora GmbH" is the manufacture and creation of individual pieces of jewelry, particularly wedding rings, in a workshop in Winterthur. The company offers customer-specific solutions and custom-made jewelry pieces according to the highest standards.

Gölz Consulting GmbH 

Winterthur · Since 2013

Gölz Consulting GmbH provides consulting in organisational development, change management and human resources with a practical HR focus. Services include organisational and culture development, absence and health management, assessments and trainings, coaching and moderation, and conflict and crisis management.

Gomex AG 

Winterthur · Since 1971

Gomex AG designs, manufactures and sells rotor-feeding machines (Air-Power-Pumps, APP) and related wear parts. Its pneumatic conveying systems are used for materials unsuitable for standard concrete pumps — for example sand, gravel, lightweight concrete, granulates and humus-like substances — and the company also supplies spray and mortar-processing equipment and hoses.

GPA Global Procurement Assistance Switzerland GmbH 

Winterthur · Since 1998

The core activity of Global Procurement Assistance (GPA) is to provide global procurement and logistics solutions for industrial companies. This includes in particular: * Global Sourcing: Searching and selecting suitable suppliers worldwide to reduce material costs * Procurement Consulting: Supporting the optimization of procurement processes and strategies * Logistics Management: Organizing and controlling logistics processes, including production and supply chain management * Project Management: Implementing projects in the areas of Global Sourcing, Procurement and Logistics * Coaching and Consulting: Supporting companies in implementing Global Sourcing strategies and optimizing procurement processes. GPA thus offers its customers a comprehensive range of services to optimize their procurement and logistics processes and strengthen their competitiveness.