Construction & Project Management in
Widnau

B+S Invest AG

Since 2017 · 1–10 empl.·5.0(43)

B+S Invest AG provides construction consulting, construction management and general contractor (total contractor) services, and works in project development, residential and commercial construction as well as renovations.

saw montage gmbh

Since 2018 · 11–20 empl.

saw montage gmbh provides installation services for concrete elements, handling project planning, organisation and on-site erection. Services include installation consultations, coordination of complete precast element assemblies, erection of structural frameworks and facades, as well as dismantling, insulation, joint work and concrete cosmetic repairs.

vistona experts ag

Since 2018 · 51–100 empl.·5.0(1)

The core activity of vistona experts is the planning and execution of sealing systems for underground structures, including the development of customized system solutions and quality management on the construction site.

WKD Projekt GmbH

Since 2022 · 11–20 empl.

The core activity of WKD Projekt GmbH is the provision of services in the field of construction management, planning and project management, particularly in the field of high-rise construction. The company offers expertise in project control, construction management and planning of construction projects and has many years of experience in cooperation with architectural firms and other partners in the construction industry.

tenebris lux gmbh

Since 2021 · 1–10 empl.·5.0(8)

The core activity of tenebris lux GmbH is the planning and implementation of electrical and lighting systems for various types of construction projects, including residential buildings, public buildings, commercial properties and schools. This includes creating 2D CAD plans and 3D visualizations, coordinating and organizing electrical and lighting installations, conducting feasibility and profitability studies of existing electrical systems, as well as calculating and designing renovations.

jw baumanagement GmbH

Since 2022 · 1–10 empl.

The core activity of JW Baumanagement GmbH is the management of construction projects, including planning, coordination and execution. The company provides project-related services to ensure the quality and optimal use of buildings, taking into account aesthetic, energetic and ecological requirements.

Valley Architekten AG

Since 2024 · 1–10 empl.

Valley Architekten AG is an architectural firm focused on the design of plus-energy residential buildings as well as office and educational projects. The practice develops timber buildings using the Openly construction system, often acts as general planner, and emphasizes standardization and prefabrication to increase efficiency and predictability.

Hug Baumanagement GmbH

Since 2002 · 1–10 empl.·3.0(2)

Hug Baumanagement GmbH provides construction management and project supervision for new builds, renovations and conversions, including single- and multi-family houses as well as commercial and industrial buildings. Services cover coordination of kitchens, bathrooms, facades, roofs and heating, pipe-line renovations, pool and garden installations, solar systems, building assessments, client advisory and final inspections.

BauNavigator GmbH

Since 2023 · 1–10 empl.·5.0(1)

The core activity of BauNavigator GmbH is the planning and implementation of construction projects, particularly in the areas of architecture, construction management and building technology. The company offers services such as renovation, refurbishment, extension, interior renovation and building modernization, and supports customers in the planning and realization of construction projects.

Spirig Group AG

Since 2025 · 1–10 empl.

Spirig Group AG is an independent architecture firm in the St. Gallen Rhine Valley. The company plans and delivers projects in housing, commercial buildings, competitions and landscape/open-space design, as well as various single-family and multi-family homes.

Schneider Bausachverständiger

Since 2015 · 1–10 empl.

HADEMO Preisinger

Since 2018 · 1–10 empl.