Freyssinet SA Your partner in the construction and repair of all types of structures (civil engineering, building) The construction of bridges and engineering structures, buildings, road and rail infrastructures by providing you with the design and realization of prestressing, cable structures, equipment for engineering structures (bearings, roadway joints and expension joints, seismic protection, anchoring systems...) The repair of bridges, engineering structures and rental or industrial buildings by helping to choose the best solution and its implementation such as: the reinforcement by additional prestressing, carbon fiber composite and shotcrete or UHPC. Protection against corrosion, earthquakes, fire and chemical aggression. And of course the inspection and maintenance of equipment such as supports, joints, prestressing and cable systems.

Frias & Fils SA is a Swiss company registered on June 24, 2025, with headquarters in Lausanne. The company has a capital of 100,000 CHF.

LAURENT MEMBREZ S.A. is a leading Swiss civil engineering company known for its strong expertise in railway construction , railway maintenance , infrastructure works , and complex civil engineering projects . With decades of experience, the company delivers large-scale construction projects across French-speaking Switzerland and throughout the country. Specialized in railway track works , rail infrastructure maintenance , civil engineering works , and concrete structures , LAURENT MEMBREZ S.A. relies on high-level technical know-how , efficient project management , and highly skilled construction teams to meet the most demanding requirements. Thanks to a modern machinery fleet , specialized railway equipment , and state-of-the-art construction technology , LAURENT MEMBREZ S.A. ensures high execution quality , maximum safety standards , and on-time project delivery for all civil engineering and infrastructure works . As an independent family-owned company , LAURENT MEMBREZ S.A. focuses on providing tailor-made construction solutions for public authorities , transport companies , industrial partners , and project owners . The company’s values are built on reliability , client proximity , technical excellence , innovation , and sustainable construction practices . A key player in the Swiss construction and civil engineering sector , LAURENT MEMBREZ S.A. stands out for its railway infrastructure expertise , engineering performance , construction quality , and its ability to manage complex civil engineering projects , from earthworks to final structural execution .

M+R architecture & DT – Planning and realization of construction projects We offer complete or partial services tailored to the needs of each client, whether private or professional. Our team is committed to supporting you from the initial concept to the final handover of your project. Our services: Project studies and preparation • Analysis, expertise, and cost estimation • Site surveys, measurements, and project plans (1/100) • Preliminary and detailed cost estimates • Selection of materials with the client • Specifications and preliminary work descriptions Permits and administrative procedures • Building permit applications and public inquiry • Detailed work descriptions and cost estimates • Preparation of tenders and calls for offers • Comparative tables and contract management Construction phase • Execution plans (1/50) and detailed scheduling • Coordination of trades and contractors • Technical and architectural site supervision • Minutes, quantity checks, and administrative follow-up • Financial management and cost control Finalization and handover • Financial closing and invoice control • Work guarantee and final acceptance • Handover of the building with revised documentation 👉 Our goal: to provide personalized and reliable support, ensuring quality, cost control, and on-time delivery.