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Stiftung Pro Zukunftsfonds Schweiz 

Basel · Since 2016

Ava Science Inc. develops and distributes a fertility tracker based on wearable technology and health sensors. The company's core activity lies in the development and marketing of products and services in the field of fertility and reproductive medicine. In contrast, Soflow focuses on developing solutions for micromobility and commuter traffic in cities, aiming to revolutionize urban traffic and offer commuters more flexibility and time savings.

Stiftung Scobag 3a Direktinvest 

Basel · Since 2014

Stiftung Scobag 3a Direktinvest is a pension solution for private Pillar 3a that implements investments via direct holdings according to defined strategies. It offers three strategies (up to 40%, 60% or 100% equity), integrates ESG criteria and charges an all‑in fee of 0.9% p.a., with no product costs for direct investments.

Stiftung tunSchweiz 

Basel · Since 2009

The core activity of the tunSchweiz foundation is to inspire and promote children and young people in the subjects of mathematics, computer science, natural sciences and technology (MINT) by offering interactive experience exhibitions and research stations, in order to counteract the shortage of young talent in these areas.

Stiftung Widar 

Basel · Since 1999

The core activity of Fondazione Widar includes the promotion of education, art, agriculture and medicine, particularly in the field of medicinal plant cultivation and therapy, as well as the preservation of culture and landscape.

Streicher & Brotschin Treuhand AG 

Basel · Since 1969

The core activity of Streicher & Brotschin Treuhand AG is the provision of services in the following areas: trust services, taxes, consulting, auditing, corporate consulting, and legal consulting. The company offers its customers professional service with a high level of quality awareness, relying on modern technologies such as ABACUS Business Software to provide fully digitized and automated workflows.

Streicher & Brotschin Revision AG 

Basel · Since 2008

The core activity of Streicher & Brotschin Treuhand AG is the provision of services in the following areas: Trust services, Taxation, Consulting, Auditing, Business consulting, and Legal consulting. The company offers its customers professional service with a high level of quality awareness, particularly in the area of digitized and automated processes in accounting and taxation.

Stuker Management GmbH 

Basel · Since 2023

Stuker Management GmbH provides project management and consulting services, including project leadership, project coaching, client training, site management and energy consulting. The company also offers support for IPMA certification (Levels B–D) and manages infrastructure and industrial projects.

Stuvino, Christian Stuker 

Basel · Since 2010

The core activity of Stuvino is the information and sale of wines and olive oil, particularly from the Murgo and Château de Juliénas wineries, as well as its own wines and olive oil.

Sumbiosis GmbH 

Basel · Since 2006

Sumbiosis GmbH provides negotiation training, moderation and process facilitation to support collaborative decision-making and conflict resolution. The company also offers online workshop formats and web-based tools (e.g. Added Insight, Meeting Ahead, Negotiation Toolbox) and serves public authorities, associations and private-sector clients.

suspiratio online bücherstube Bertschi 

Basel · Since 2003

The company ZVAB (Central Association of Antiquarian Books) is an online marketplace for antiquarian books, sheet music, maps, prints, securities, records and audiobooks. The core activity of the company is to provide a platform for sellers and buyers of antiquarian books and other collectibles, where they can offer and purchase their items.