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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.