Construction manager 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 installs prefabricated concrete elements, including load-bearing structures, façades and other concrete-element constructions. Its services also include installation consultancy and coordination, dismantling, insulation and joint work, and concrete surface finishing.

vistona experts ag

Since 2018 · 51–100 empl.·5.0(1)

vistona experts ag plans and delivers waterproofing solutions for structures in contact with the ground and watertight concrete construction. Its services include consulting, concept development, BIM-based specialist planning, tendering, site supervision and implementation.

WKD Projekt GmbH

Since 2022 · 11–20 empl.

WKD Projekt GmbH provides planning and construction management services for building projects, as well as advice for building owners. Its services include cost and schedule planning, tendering, energy consulting, and advice on optimising self-consumption from photovoltaic systems.

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.