Owner's representation in
Wil SG

osterwalder immobilien ag

Since 2011 · 1–10 empl.·4.3(13)

The core activity of Osterwalder Immobilien AG is the provision of services related to real estate, in particular: Real estate brokerage/sales, Real estate management/administration, and Construction consulting. The company positions itself as a regionally active real estate trust company, offering all services related to real estate and responding to the concerns of its clients in a solution-oriented manner.

Griesmeier Baumanagement AG

Since 2017 · 1–10 empl.

The core activity of Griesmeier Baumanagement AG is construction management, particularly the planning, organization and supervision of construction projects. The company offers services such as project management, civil engineering and architecture.

2SD Architekten AG

Since 1991 · 11–20 empl.·5.0(3)

2SD Architekten AG is an architecture practice offering architectural services, construction management and consultancy. Its work includes feasibility studies, project and execution planning, cost and schedule planning, site management, building analyses and client representation; it also uses BIM for project planning.

Schönenberger Architektur Immobilien GmbH

Since 2006 · 1–10 empl.·4.8(5)

Schönenberger Architektur Immobilien GmbH is an architecture practice working on new builds, conversions and renovations. Its services include consultancy, design and construction management, property valuations and sales, as well as general contracting.

baubasis AG

Since 2025 · 1–10 empl.

baubasis AG provides construction management and site supervision services. The company handles overall project coordination and offers consulting, project leadership, cost and schedule planning, tendering, and execution support.

t + w ag

Since 1983 · 1–10 empl.

Gruner AG

Since 2012 · 1–10 empl.

Fässler Bau & Sport Beratungen GmbH

Since 2017 · 1–10 empl.

rre Baumanagement AG

Since 2023 · 1–10 empl.

R&B services ag

Since 2024 · 1–10 empl.