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ASPMedia AG 

Würenlos · Since 2017

The core activity of ASPMedia AG is the consulting, planning, implementation and maintenance of IT projects, particularly in the areas of Digital Signage, Linux, relational databases and IP-based networks. This also includes conducting training sessions and webinars, as well as programming in higher programming languages such as C, C++, PHP and Python.

AviEx GmbH 

Würenlos · Since 2014

The core activity of AviEx Ltd. is the provision of services to the aviation industry, particularly in the areas of: Compliance monitoring and consulting, Safety management, Project management, Document management, Supplier evaluation and monitoring, Interim management, and Management system training. The company supports aviation organizations in complying with regulations and standards, improving their safety and quality management systems, as well as in conducting projects and managing documents.

Bauen und Wohnen in der Schweiz GmbH 

Würenlos · Since 2019

The company 'Bauen und Wohnen in der Schweiz' (bawos.ch) is an online magazine specializing in providing information and services for builders and homeowners in Switzerland. The core activity of the company is to provide information and offers in the field of building and living, including: Providing articles, reports, and inspiration for building and living; Mediating craftsmen, architects, and mortgages for construction and renovation projects; Offering advertising opportunities for companies in the construction industry; Operating a forum for users to exchange questions and experiences. The company positions itself as a platform for builders and homeowners to find information and services for building and living in Switzerland.

Bau- und Möbelschreinerei Adrian Nussbaumer 

Würenlos · Since 1992

The core activity of the company 'Die Altstadtschreinerei' is the execution of carpentry work, particularly interior fittings, conversions, renovations, furniture manufacturing, repairs and restorations.

Bickgut Weine AG 

Würenlos · Since 2005

The company's core activity is viticulture and wine production, particularly the production of top wines from its own vineyard in Würenlos, Aargau.

Birdsong Media GmbH 

Würenlos · Since 2004

Birdsong Media GmbH provides audiovisual planning and implementation services for theatres, concert halls, exhibitions and conferences, focusing on audio, video, lighting, stage and communication systems. Services include engineering and planning, system integration, installation, operation and maintenance, production support and EN60849 compliance testing.

Brick Bau Group AG 

Würenlos · Since 2025

Brick Bau Group AG is a construction company offering new construction, conversions, deconstruction, renovations and refurbishments, and providing services in structural and civil engineering, general contracting, site services and demolition. The firm provides personal project management and coordinates construction projects in close cooperation with clients.

Brick Bau AG 

Würenlos · Since 2009

Brick Bau AG is a construction company that offers new-build, conversion, renovation, refurbishment and demolition services as well as structural and civil engineering works. The company also provides general contracting and construction site services, managing projects through to turnkey handover.

CAT Group AG 

Würenlos · Since 2019

The core activity of CAT Group AG is the development and application of innovative insulation solutions for industrial applications, particularly in the field of heat and refrigeration technology. The company offers customized solutions for the insulation of boilers, filters, pipelines and ventilation systems to reduce energy losses and improve the efficiency of industrial plants.

CKW Gebäudetechnik AG 

Würenlos · Since 2023

CKW Gebäudetechnik AG provides planning, installation and maintenance services in building technology. Its offerings include heat pumps, building automation, electric vehicle charging infrastructure, alarm and security systems, and electrical installations.