Schaller - Opusbois is a company specializing in the construction and design of wooden buildings. They offer a wide range of services related to ecological construction, focusing primarily on timber-frame homes. Below is an overview of the company's main activities: 1. Timber-Frame House Construction • Custom Design : Schaller - Opusbois provides custom-designed houses tailored to the specific tastes and needs of their clients. The plans can be developed according to individual requests or based on predefined models. • Eco-Friendly Construction : The company emphasizes the use of sustainable and eco-friendly materials, helping to reduce the carbon footprint of their buildings. • Energy Efficiency : Timber-frame constructions offer excellent thermal insulation, and Schaller - Opusbois works to optimize the energy consumption of the houses they build. 2. Traditional and Contemporary Timber Framing • The company manufactures and installs wooden frameworks for various types of projects, whether they are classic or more modern structures. This includes timber frames for individual homes, extensions, or larger buildings. 3. Exterior Wooden Structures • Schaller - Opusbois offers solutions for outdoor spaces, such as building decks, pergolas, garden sheds, or carports. These structures are made of wood to blend harmoniously with the natural environment. 4. Renovation and Extension of Wooden Buildings • The company also handles the renovation and transformation of wooden houses or buildings, whether it’s extending, refurbishing, or modernizing existing structures. 5. Consulting and Project Management • Project Planning : Schaller - Opusbois assists clients from the initial design phase, taking into account technical, financial, and environmental aspects. • Site Supervision : They offer full construction site supervision, ensuring the work is carried out properly and within the agreed timeframe. 6. Custom Woodwork and Carpentry • The company also provides carpentry services, creating custom furniture, doors, windows, and other wooden elements. In summary, Schaller - Opusbois is a key player in the timber construction sector, offering services that combine innovation, sustainability, and artisanal craftsmanship.

BETELEC SA – Engineering, Design, and Project Management in Electrical Installations BETELEC SA is a company specializing in engineering, design, and project management in the field of electrical installations. As experts in energy solutions and building security, we support our clients throughout their projects, from initial studies to implementation, including project supervision and infrastructure operation. As leaders in electrical engineering consulting, we are committed to delivering high-performance, innovative, and sustainable solutions tailored to current and future requirements. Our Areas of Expertise: • Engineering and consulting • Project design and management • Energy solutions and building security BETELEC SA operates five branches, all located in the Romandy region. Our headquarters has been in Lausanne since 1976. The four other branches are in Fribourg (since 2002), Neuchâtel (since 2002), Geneva (since 2005), and Martigny (since 2012). We have been ISO 9001 “Quality” certified since June 3, 1998. BETELEC SA also integrates environmental considerations for sustainable development, earning the ISO 14001 certification on December 15, 2002. Rely on our expertise for tailored support and optimized installations.

TMB – Technologie de Maintenance du Béton SA in Crissier is a leading Swiss company specializing in concrete maintenance , structural waterproofing , and concrete repair solutions . With strong technical expertise, TMB supports professionals in construction , civil engineering , and infrastructure renovation with innovative and durable technologies . As experts in waterproofing of structures , TMB – Technologie de Maintenance du Béton SA provides high-performance construction joints and joint sealing systems designed to meet the technical requirements of modern building projects . Thanks to advanced concrete waterproofing systems , the company ensures long-term protection , resistance to water infiltration , and extended service life of structures . TMB Crissier also offers advanced geocomposites for drainage , soil reinforcement , and ground waterproofing , perfectly suited for foundations , underground structures , parking facilities , road construction , and civil engineering works . These solutions guarantee efficient water management , improved ground stability , and sustainable infrastructure performance . Specialized in concrete repair and masonry rehabilitation , TMB – Technologie de Maintenance du Béton SA in Crissier delivers reliable solutions for structural concrete repair , crack treatment , surface restoration , and long-term protection of existing structures . Each intervention is carried out with a strong focus on quality , durability , and safety . For urgent and high-traffic areas, TMB supplies high-performance rapid-setting mortars for floors and roads , enabling fast , strong , and long-lasting repairs . These technical mortars are ideal for road maintenance , industrial floors , and heavily loaded surfaces . Choosing TMB – Technologie de Maintenance du Béton SA means working with a trusted partner in concrete technology , waterproofing solutions , infrastructure maintenance , and technical construction products . Based in Crissier , TMB supports new construction , renovation , and concrete rehabilitation projects throughout Switzerland , with a strong presence in Western Switzerland .