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Baltensperger AG Hochbau Tiefbau 

Winterthur · Since 1966

Baltensperger AG Hochbau Tiefbau is a construction company providing building and civil engineering services as well as timber construction, executing projects from foundations to completed buildings. The company’s services include general contracting (TU/GU), renovations and conversions, hybrid construction, construction services and prefabricated timber system elements.

Bank Vontobel AG 

Winterthur · Since 2012

Bank Vontobel AG is an internationally active investment house with Swiss roots. The bank provides wealth management and private client services, asset-management solutions for institutional clients, structured product offerings, execution and custody services, and trading/markets services.

bär + architekten AG 

Winterthur · Since 1989

The core activity of the company "bär+ architekten AG" is the planning and realization of construction projects, particularly in the areas of residential construction, commercial construction, renovations, housing estates, studies, and manufacturing facilities. The company offers services as an architectural firm and general planner, and also assumes the role of general or total contractor. The activities include the planning and execution of single-family and multi-family homes, commercial buildings, office buildings, school buildings, retail and commercial buildings, as well as agricultural buildings, from project planning to final accounting.

Barok GmbH 

Winterthur · Since 2016

The core activity of barok gmbh is the provision of services in the field of construction management and construction coordination. This includes, in particular, the planning, organization and supervision of construction projects, including the coordination of various trades and the alignment of construction projects.

Baronenscheune GmbH 

Winterthur · Since 2017

Baronenscheune GmbH is a centre for integrative medicine that combines medical and complementary therapy services in a single facility. Its services include general/internal medicine, psychiatric and psychotherapeutic care, physiotherapy, osteopathy, art therapy, massage, shiatsu, traditional Chinese medicine and various courses and event offerings.

BARROM Reisen GmbH 

Winterthur · Since 2019

The company's core activity is the sale and organization of trips, particularly round trips, beach vacations and river cruises, in Asia, with a focus on boutique hotels and private round trips.

basic4 GmbH 

Winterthur · Since 2017

The core activity of basic4 Consulting Wollerau is the provision of consulting services in the areas of management, human resources, IT and finance.

Baubeginn Schiess AG 

Winterthur · Since 2022

The core activity of Baubeginn Schiess GmbH is construction management, encompassing the planning, coordination and supervision of construction projects, including new builds, renovations and refurbishments. The company provides personalized and individual consulting services and supports clients in all aspects of their construction projects.

Bauexperts und Immowert GmbH 

Winterthur · Since 2010

The core activity of the company "Bauexperts & Immowert GmbH" is the provision of services in the field of construction consulting, damage analysis, renovation consulting, real estate valuation and consulting, as well as owner representation. The company offers expert services in the following areas: * Damage analysis and assessment * Renovation consulting * Construction consulting * Real estate valuation and consulting * Moisture and sound measurement * Defect detection and evaluation * Construction supervision and accompaniment * Owner representation The company positions itself as a neutral and competent partner for customers in the construction and real estate sector.

Baugenossenschaft Geiselweid Winterthur 

Winterthur · Since 1927

The company's core activity is the development and marketing of residential properties, particularly apartments in central locations.