Owner's Representative

Natalini S.A. 

St-Cergue · Since 1984

The core activity of Natalini SA encompasses the provision of services in the construction sector, specifically: masonry and reinforced concrete (bricklaying and reinforced concrete construction), civil engineering, earthworks, exterior finishing, renovation and transformation, tiling, second-fixing (i.e., work that follows rough construction), and micro-sandblasting. The company offers these services for new buildings, conversions, and renovations, and has specialized in the realization of various types of construction projects.

OSRI AG 

Lucerne · Since 2022

The core activity of OSRI AG is to support municipalities, authorities and private individuals in shaping living spaces, particularly through: organizational support, spatial process design, process and stakeholder management, organization, moderation and documentation of participation processes, consulting and accompanying political processes, and development of utilization concepts, special use planning, area development and volume studies. OSRI AG supports its customers in spatial (further) development, especially in the areas of urban planning, architecture and monument preservation.

Puls Baumanagement GmbH 

Winterthur · Since 2015

The core activity of Puls Baumanagement is the provision of services in the field of construction management, particularly in construction management, project management, owner consulting and the implementation of feasibility studies. The company supports customers in the planning, realization and completion of construction projects and offers comprehensive support from the initial idea to the handover of the keys.

Renokonzept, Bauleitungs AG 

Zurich · Since 1991

The core activity of Renokonzept Bauleitungs AG is the planning and execution of construction projects as a general contractor, with a focus on quality, cost security and transparency.

Righetti Partner Group AG 

Zurich · Since 2010

The core activity of Righetti Partner Group AG is the provision of services in the field of construction and real estate management, including project management, construction management, procurement, organizational development, strategy development and communication services. The company supports builders and companies in planning, controlling and implementing construction projects and offers solutions for digital transformation and organizational development.

Rovera Immobilien- und Baumanagement AG 

Winterthur · Since 1996

The company's core activity is construction management, particularly in the field of building construction, including cost estimation, QSS fire protection, project, cost, schedule and quality management of construction projects, as well as the implementation of overall project management, feasibility studies, expert opinions, planning, design, project management and construction management for new and renovation projects.

sdplus conseils sa 

Lausanne · Since 1994

2SD Architekten AG 

Wil Sg · Since 1991

The core activity of 2SD Architekten AG is the provision of architectural services, particularly the planning and design of buildings and spaces, taking into account aspects such as environment, quality, architectural design and costs.

ACF FERATI TREUHAND GMBH 

Basel · Since 2021

The core activity of ACF Ferati Treuhand is the provision of trust services, particularly in the areas of: * Accounting, annual financial statements and taxes * Personnel administration and payroll accounting * Tax consulting * Administration for SMEs and private individuals * Real estate trust * Company formations The company thus offers comprehensive services in the field of financial and administrative consulting, particularly for small and medium-sized enterprises (SMEs) and private individuals.

Aebi Partner GmbH Bauleitungen und Baumanagement 

Zurich · Since 2017

The core activity of Aebi Partner GmbH is construction management and project management in the construction industry, particularly in the planning, execution and supervision of construction projects such as new buildings, renovations, refurbishments and extensions of residential and commercial buildings.

ai bau-projekt-management gmbh 

Berneck · Since 2014

The core activity of the company "Ai Bau Projekt-Management" is the professional management of construction projects, including project management, construction management and architecture. The company offers services such as project planning, coordination and monitoring, and acts as a contact and trusted partner for builders throughout the entire construction phase.

Assyneo Sàrl 

Crissier · Since 2013

Assyneo Sàrl provides owner‑representation and project management services for construction projects, including assistance to the owner (AMO), project direction and site supervision. Services include cost calculation, coordination of interfaces, contractor negotiation and certified fire‑protection expertise.

atelier marti architekten ag 

Unterseen · Since 2010

The core activity of ateliermarti architekten ag is the provision of architectural services, particularly in the field of high-rise construction, with a focus on residential, office, hotel, wellness, public, healthcare and office buildings.

bau construct services ag 

Zumikon · Since 2020

The core activity of bau construct services ag is the holistic management of real estate through the 5E principle, which covers the phases of development, creation, experience, maintenance and renewal in the life cycle of a property. This includes strategic planning, project development, construction, marketing, management and renewal of real estate. The company thus offers services in the areas of construction management, general contracting and total contracting.

Baumed Bauleitungen AG 

St. Gallen · Since 2019

Baumed Bauleitungen AG is a construction management firm providing project and site management and related services for building works. Services include tendering and specifications, cost management, scheduling, refurbishment and new-build site management, heritage restoration, defect expertise, owner advisory, public procurement support and overall project leadership.

Bolliger Neukom Treuhand 

Aarau · Since 2024

The core activity of Bolliger Neukom Treuhand (BNTreuhand) is the comprehensive service in the field of real estate, including: real estate valuation, real estate management, real estate marketing, real estate development, condition analysis and investment planning, as well as consulting for private individuals, companies and the public sector. The company thus offers a wide range of services aimed at meeting the needs of property owners and interested parties.

Bonzani Bau Consulting AG 

Freienbach · Since 2003

The core activity of Bonzani Bau Consulting AG is the provision of services and consulting in the field of construction, particularly in project management, construction management and real estate management.

BOVET Bauen und Beraten GmbH 

Winterthur · Since 2016

Bovet Bauen und Beraten GmbH is a consulting and services company specializing in the areas of owner representation, construction consulting and construction execution. The company's core activity is to support and advise customers in the planning, design and realization of construction projects. This includes, among other things, the creation of concepts, the implementation of construction projects, consulting on the selection of materials and the supervision of construction execution.

Bühler & Oettli AG 

Zurich · Since 2003

The company's core activity is construction management, particularly overall management, cost planning and cost control, construction management, owner consulting and project control for construction projects. The company offers independent and competent services as a partner for investors, owners, users and planners to create added value and ensure goal achievement.

Carnier Gstöhl GmbH 

Widnau · Since 2016

The company carnier gstöhl GmbH is an architectural firm specializing in the planning and consulting of construction projects. The core activities include: Architecture: Design and planning of new buildings, conversions, renovations, and restorations; Construction consulting: Consulting for builders and investors in the realization of construction projects; Village and urban development: Planning and consulting for the development of local images and urban areas; Garden consulting and planning: Consulting and planning of gardens and environmental design; Building and damage assessment: Assessment of buildings and damages for the building insurance of the canton of St. Gallen (GVA). The company emphasizes the integration of architecture into the existing environment, the use of ecological materials, and the consideration of the needs of the builders.