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civil.ing GmbH 

Basel · Since 2020

The core activity of civil.ing GmbH is engineering and consulting services in the urban space, particularly the organization and planning of projects in this field.

CKW Gebäudetechnik AG 

Basel · Since 2024

CKW Gebäudetechnik AG provides building-technology services, including planning, installation and maintenance of heat pumps, building automation, EV charging infrastructure, alarm and security systems, and electrical installations. The company’s services cover consulting, project implementation and ongoing maintenance for private and commercial clients.

Clairvaux Capital AG 

Basel · Since 2021

The core activity of Clairvaux Capital AG is systematic investment advice and management through quantitative research and technology, particularly in the areas of algorithmic trading, relative value and arbitrage strategies, as well as the creation of customer-specific solutions.

Clap Your Hands GmbH 

Basel · Since 2021

Clap Your Hands is a music label specializing in the production, publication and promotion of music projects. The core activities include collaboration with artists, production of music albums, organization of masterclasses and publication of music through various channels. The company also supports artists in their creative process and provides a platform for presenting their music.

Clariant Foundation 

Basel · Since 2014

Clariga AG 

Basel · Since 2016

Clariga AG provides independent wealth and estate planning and family office services. The company advises on international family wealth and estate matters, supports family governance, can act as protector, mentor and mediator, assists with philanthropic activities and coordinates an international network of experts; it is supervised by the VQF.

Claude Birchler Management & Consulting 

Basel · Since 2005

Claude Birchler Management & Consulting provides industrial and logistics consulting focused on Lean methods (Lean manufacturing, production, logistics, construction) and delivers training, implementation and coaching. Services include production-site planning, storage and material-handling system optimization and selection, deployment of Lean tools (e.g. VSM, 5S, SMED, KANBAN, TPM) and studies to assess improvement potential.

Claude Kuhn Ingenieur AG 

Basel · Since 2006

The core activity of Claude Kuhn Ingenieur AG is the provision of engineering services, particularly in the areas of: Technical Due Diligence: examination and evaluation of technical facilities and systems in the context of company acquisitions or sales; Authority Approvals: support in obtaining necessary permits and approvals for projects; and Compliance with Laws and Regulations: consulting and support in complying with legal requirements and regulations. The company offers these services primarily to customers from the chemical and pharmaceutical industries as well as other industries in Switzerland and internationally.

Claudia Güdel GmbH 

Basel · Since 2006

The company is a fashion company specializing in the manufacture and sale of clothing and accessories. The core activity includes the design, production and distribution of clothing for men and women, including tops, pants, jackets, shirts, coats, dresses, overalls and accessories such as bags, scarves, hats and belts. The company also operates an online store and several physical stores in Basel and Bern.

CLAVIS klw AG 

Basel · Since 2000

The core activity of CLAVIS klw AG is to advise and support organizations in the implementation and optimization of IT service management, information security management and quality management. This includes the development of strategies, the conduct of assessments and gap analyses, the implementation of management systems based on international standards such as ISO/IEC 20000-1, ISO/IEC 27001 and ISO 9001, as well as the training and certification of employees. In addition, the company offers experts as a service to support organizations in bridging capacity gaps.