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Winnewisser Baumanagement AG 

Bern · Since 2010

Winnewisser Baumanagement AG provides project and construction management services across the building lifecycle. It acts as overall execution lead or as responsible party for project phases, coordinating owners, architects, planners, contractors and specialists to manage quality, costs and schedules and to reduce project risks.

Winnewisser Generalplanung GmbH 

Bern · Since 2018

Winnewisser Generalplanung GmbH provides general planning services for new‑build, renovation and conversion projects and acts as a single contractual partner coordinating architects, engineers and specialist planners. Services include planning and coordination of building and technical systems, plant engineering and external works, and management of information, quality, cost and schedule.

Winnewisser Liegenschaften GmbH 

Bern · Since 2017

Winnewisser Liegenschaften GmbH provides property management and marketing services for individual properties and real estate portfolios. Services include developing and implementing management and marketing strategies, property administration, marketing and initial letting of new-build projects, financial portfolio or property analyses, and support with tax-related matters.

Winnewisser Bauherrentreuhand GmbH 

Bern · Since 2020

Winnewisser Bauherrentreuhand GmbH provides client-representation and trustee services for construction projects, organizing, coordinating and overseeing projects from development to final documentation. Services include reviewing project fundamentals, preparing and checking contracts and specifications, defining interfaces, representing client interests in procurement negotiations, and supervising trust accounts for payment releases and budget control.

Winnewisser Totalunternehmung GmbH 

Bern · Since 2020

Winnewisser Totalunternehmung GmbH provides total contracting services, taking responsibility for planning, project development and delivery of construction projects while coordinating all required planning and construction tasks. Services include feasibility studies, permitting, tendering, execution planning, procurement, implementation, commissioning and warranty services.

Winnewisser Vermögensplanung AG 

Bern · Since 2023

Winnewisser Vermögensplanung AG provides comprehensive wealth planning and financial advisory services, developing personalised financial strategies and advising on retirement, securities, real estate, mortgages, insurance and tax matters. Services include a financial concierge, investment advisory (registered advisors), financing support and pension planning.

Arcavis AG 

Bern · Since 2022

The core activity of Arcavis AG is the development and distribution of a powerful and comprehensive point-of-sale (POS) solution with inventory management and CRM for the retail industry in Switzerland.

BELWAG AG BERN 

Bern · Since 1943

BELWAG AG BERN is an automotive dealer selling new and used passenger cars and commercial vehicles from multiple brands. The company operates service workshops for maintenance, repairs, air-conditioning service, tyre services and car care, and provides fleet, leasing, vehicle delivery and conversion solutions for corporate customers.

DERLER Haus-Wohn-Service GmbH 

Bern · Since 2020

The core activity of Derler Haus-Wohn-Service GmbH encompasses the provision of services in the field of property management, specifically: furniture assembly, moving and moving cleaning with acceptance guarantee, transportation, clearance, disposal, janitorial services, repairs, and cleaning. The company offers these services as a specialized and motivated team in the Bern region.

deVille Immobiliendienste Inhaberin Monica Coello 

Bern · Since 2009

The core activity of deVille Immobiliendienste encompasses four main areas: 1. **Trading**: Purchase and sale of real estate, including negotiations and transactions. 2. **Marketing**: Innovative and fresh marketing strategies across all media to successfully market properties. 3. **Asset Management**: Enhancement of property values through professional management and administration. 4. **Condominium Ownership**: Services for condominium and co-ownership, including consulting and administration. The company thus offers comprehensive services for property owners, buyers, and sellers.