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ansgar staudt architekten sia gmbh 

Basel · Since 2014

The company's core activity is the planning, development and realization of architectural projects, particularly in the area of residential and commercial buildings, as well as the renovation and revitalization of existing buildings, often with a focus on energy efficiency and historic preservation.

Aquatec Kanalsanierungen AG 

Basel · Since 2008

Aquatec Kanalsanierungen AG is a company of the Marquis Group offering trenchless sewer and pipe rehabilitation, including work using the Inliner technique. Services include CCTV inspections (Kanal‑TV), condition assessments, rehabilitation planning and quality control with test reports.

ARC.GES GmbH 

Basel · Since 2015

ARC.GES GmbH is an architectural practice that designs renovations and new-build projects for single- and multi-family housing as well as social facilities. The practice provides the full project scope from concept studies and permit applications to construction documentation, tendering and site supervision.

Architeam 4 AG 

Basel · Since 1994

The core activity of Architeam 4 AG is the planning and realization of architectural projects, particularly in the area of residential and commercial buildings, schools, university buildings and other public institutions. The company also offers services in the field of renovation and refurbishment of existing buildings.

Architekturbüro Berrel 

Basel · Since 1985

Arno Wolf GmbH 

Basel · Since 2015

Arno Wolf GmbH produces handcrafted design objects and sells accessories, furniture and decorative items such as stars and houses. The range draws on traditional forms reinterpreted for contemporary use and is offered via an online shop and a showroom.

ArtInitiative Switzerland Stéphane Decor 

Basel · Since 2020

The core activity of ArtInitiative Switzerland is the production of musical events, particularly concerts of symphonic and chamber music, featuring internationally renowned artists.

Astrid Kübli Konservierung und Restaurierung von Möbeln und Holzobjekten 

Basel · Since 1993

The company's core activity is the restoration and conservation of antique furniture and wooden objects.

A-Tech & Consulting AG 

Basel · Since 1975

The core activity of A-Tech & Consulting AG is real estate development, particularly in buyer consulting, sales and construction of real estate. The company provides personal consulting for buyers and sellers, supports financing and evaluation of construction projects and coordinates all trades for the construction of real estate.

AWS Medien GmbH 

Basel · Since 2019

The company's core activity is the creation and publication of journalistic content, in particular texts such as interviews, portraits, columns, analyses and investigative stories, as well as the management of media teams at events.