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Kart & Partner AG 

Basel · Since 1981

The company is a general contractor with core activities in the following areas: * Planning and project development of construction projects * Architecture and design * Construction execution and project management * Renovation and refurbishment of real estate * Purchase and sale of real estate * Turnkey handover of construction projects The company offers a comprehensive service from planning to completion of construction projects and focuses on achieving the highest quality and customer satisfaction.

KARYBU LTD 

Basel · Since 2012

KARYBU is a retail company specializing in the sale of high-quality products in the areas of interior, fashion, jewelry, and art. It operates a concept store on the Greek island of Tinos and also offers online shopping. KARYBU develops and produces its own products, complementing them with selected brands. The focus is on sustainable quality, exclusive materials, innovation, design, and fairness in the supply chain.

Kaskad-E GmbH 

Basel · Since 2011

The core activity of Kaskad-E GmbH is the sustainable use of energy and material flows through the development and implementation of solutions in the areas of energy systems, pyrolysis technology and biomass management. This includes in particular: the planning and consulting of energy systems, including the optimization of energy and material flows; the development and manufacture of small-scale pyrolysis plants for the production of biochar; the utilization of biomass, especially green waste, through energetic and material optimization; the development of solutions for the use of waste heat and residual materials; and collaboration with other companies and institutions in the implementation of projects.

KASTKAEPPELI Architekten GmbH 

Basel · Since 2020

KASTKAEPPELI Architekten GmbH is an architectural practice carrying out design and competition entries, feasibility and urban studies, and project planning including site supervision for public and private building projects.

Kathobe AG 

Basel · Since 2022

Kathobe AG specializes in cathodic corrosion protection for steel reinforcement in concrete (KKS‑B). The company designs and installs permanent KKS‑B systems using titanium mixed‑metal‑oxide anodes (bands, meshes or rod anodes), provides monitoring and service contracts with annual inspections, and documents quality‑assurance measures in line with applicable standards.

Katia Raimondi Accessori 

Basel · Since 2018

The core activity of Katia Raimondi Accessori is the manufacture and sale of accessories, particularly fashion accessories such as hats, bags, jewelry and other fashionable complements. The company also offers courses where customers can learn how to create their own accessories.

Katkin Consulting GmbH 

Basel · Since 2014

The core activity of Katkin Consulting GmbH is the provision of management and consulting services, particularly in the field of project management, with the aim of supporting companies in identifying business opportunities, developing solutions and increasing their performance capabilities.

Katylistic GmbH 

Basel · Since 2024

Katylistic GmbH provides regulatory writing and clinical evaluation services for medical device manufacturers, focusing on clinical evaluation reports, post‑market clinical follow‑up (PMCF) activities, and workshops to improve documentation processes.

Kaufmännischer Verband Basel 

Basel · Since 1906

Kaufmännischer Verband Basel is the professional association for employees and trainees in commercial and related occupations. The association represents members' interests, promotes commercial vocational education and provides advice, training and events, as well as publications and networking infrastructure.

KB Kathrin Buehler Beratung GmbH 

Basel · Since 2017