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Jenisch Consulting GmbH 

Basel · Since 2017

The core activity of Jenisch Consulting GmbH is the consulting and optimization of business processes in companies, with the goal of increasing efficiency, reducing errors and quality losses, and making processes leaner and more efficient.

jessenvollenweider architektur ag 

Basel · Since 1999

The company jessenvollenweider is an architectural firm specializing in the planning and realization of construction projects. The company's core activity includes the creation of designs, the implementation of construction projects, and the renovation of existing buildings. The company also focuses on planning sustainable and energy-efficient solutions, such as the integration of photovoltaic systems into buildings.

Jet & Boat Cleaning Services GmbH 

Basel · Since 2015

The core activity of the company "Jet & Boat Cleaning Services GmbH" is the cleaning of jet skis and boats.

Jet Dienstleistungen AG 

Basel · Since 2011

Jet Dienstleistungen AG provides building and facility services, including routine and deep cleaning, glass and façade cleaning (including photovoltaic systems), and additional services such as grounds maintenance, demolition, clearances, waste disposal and transport.

jetzt.dev ag 

Basel · Since 2024

jetzt.dev ag develops custom software and provides agile development, systems integration and quality assurance for business clients. Its products include a Swiss company-news platform aimed at lawyers, public authorities and fiduciaries, and a task-and-mandate management application.

Jewels Basel GmbH 

Basel · Since 2020

The core activity of the company "Jewels Basel" is the organization and execution of an exhibition for exclusive jewelry, art and design. The company presents a selection of rare and collectible jewelry, art and design from various exhibitors and simultaneously offers a platform for artists and collectors.

JFG Life Sciences Stiftung der Universität Basel 

Basel · Since 2018

JFG Life Sciences Stiftung der Universität Basel supports the transfer of innovations from medical research to industry and particularly promotes young entrepreneurship. The foundation invests in life sciences and related companies in Switzerland and abroad and accepts tax-exempt donations.

JFM Speciality Fibres AG 

Basel · Since 2008

JFM Speciality Fibres AG trades in and processes animal fibres and raw materials for the textile industry, including dehaired cashmere, cashmere tops and noils, mulberry and tussah silk, camel hair and yak wool.

Jindella AG 

Basel · Since 2021

The company Jindella AG offers outsourcing services in various areas, including: Facility Management, Customer Service, Finance Services, HR Administration, IT specialists and IT services (including Helpdesk), Logistics, Master Data Management, Recruitment Consulting, Automation, Compliance Consulting, Controlling, HR Consulting, and Transfer Support. The core activity of the company is to support customers in outsourcing business processes and to design these processes efficiently and cost-effectively. The company offers a wide range of services to support customers in optimizing their business processes.

jjsscc GmbH 

Basel · Since 2018

The company jjsscc is a design and communications company specializing in the development of creative solutions for various clients and projects. The company's core activity includes the creation of design concepts, the connection of language and iconography, as well as the development of strategies and campaigns for various industries and clients. The company also offers consulting services and focuses on the development of innovative and high-quality solutions.

JLema GmbH 

Basel · Since 1997

JLema GmbH provides facility and cleaning services. Offerings include caretaking and garden maintenance, apartment and move-out cleaning (including end-cleaning with handover guarantee), professional window cleaning, and clearances.

JobKompass GmbH 

Basel · Since 2012

JobKompass GmbH provides career guidance and job coaching, including development of application dossiers, interview preparation, job-search support and assistance with business-plan development for self-employment.

Jobline GmbH 

Basel · Since 1997

Jobline GmbH is a recruitment agency that places candidates in temporary and permanent positions in technical and commercial sectors. Its services include permanent recruitment, temporary staffing, try & hire, probation placements and payroll administration.

Joerg Horat Baupartner AG 

Basel · Since 1980

The core activity of Joerg Horat Baupartner AG is real estate valuation and consulting, particularly as an independent building owner consultant and real estate appraiser.

Johann Wolfgang von Goethe-Stiftung 

Basel · Since 1968

Johann Wolfgang von Goethe-Stiftung supports and funds projects in the fields of culture, science and research, nature and environmental protection, European unity, and peace promotion. The foundation places emphasis on supporting young people and may assist both individuals and institutions, primarily in the Regio Basiliensis.

Jordi & Wälti AG 

Basel · Since 1998

The core activity of Jordi & Wälti AG is the planning, coordination and execution of construction projects, particularly in the area of renovations, conversions and interior fittings, with a focus on the processing and installation of various floor and wall coverings such as ceramics, natural stone, parquet, vinyl, carpet, PVC and mosaic.

Josef Oberle-Gedächtnisstiftung 

Basel · Since 1984

The core activity of the company "Josef Oberle-Gedächtnisstiftung" is to support needy individuals in financing their education and further training.

Josef und Olga Tomcsik-Stiftung 

Basel · Since 1966

The company's core activity is the management and allocation of foundation funds, as it is a foundation established by its founders Josef and Olga Tomcsik.

Joseph Haydn Stiftung 

Basel · Since 2013

The company's core activity is the organization, production and financing of music projects, in particular the performance and recording of Joseph Haydn's symphonies with renowned orchestras and conductors, as well as the publication of these recordings as a CD and vinyl collector's edition in book form.

Joss Treuhand 

Basel · Since 2002

The core activity of KMU Joss Treuhand GmbH is the provision of trust services for small and medium-sized enterprises, particularly in the areas of finance (accounting, etc.), human resources, and taxation. The company offers tailored services to support customers in managing their finances, personnel matters, and taxes, allowing them to focus on their core activities.