Technical Consulting & Engineering

Schmidiger + Rosasco AG 

Zurich · Since 1967

The core activity of Schmidiger + Rosasco AG is electrical planning, particularly in the areas of building automation, energy supply and renewable energies. The company offers services such as electrical safety planning, lighting design and consulting in the field of Building Information Modeling (BIM) and operates in various industries such as commerce, industry, healthcare and education.

Schopfer et Niggli S.A. 

Lausanne · Since 1994

The company Schopfer-Niggli is an engineering firm specializing in various areas of construction and infrastructure. The core activities include: planning and implementation of infrastructure projects, such as roads, bridges, railway lines, airports, and water management facilities; construction and renovation of buildings, such as schools, administrative buildings, residential buildings, and industrial halls; environmental studies and planning, including noise protection and water management; project management and monitoring for construction and infrastructure projects; and expert opinions and reports for construction and infrastructure projects. The company thus offers a wide range of services, from planning and implementation of infrastructure projects to environmental planning and monitoring.

SERO GmbH 

Oberrohrdorf · Since 1999

SERO GmbH is an engineering firm for building services and thermal energy that provides building services planning, energy consulting and construction management. Its services include heating and cooling design, ventilation and sanitary planning, energy certificates and studies, as well as site supervision, tender documentation and operational optimisation.

Sertronas AG 

Pfäffikon Sz · Since 2025

Sertronas AG provides 3D building surveying and virtual tours for architects, real estate developers, craftsmen, hotels and industrial sites. Services include 3D laser scanning, point clouds, 2D/3D floor plans, terrain surveys and 360° photo tours with digital data delivery in common formats.

Bechtle Additive Manufacturing Schweiz AG 

Wallisellen · Since 2008

The core activity of SGSolution AG is consulting, sales and support of 3D printing solutions, particularly HP 3D printers, as well as the development and manufacture of precision parts using additive manufacturing and CNC machining. The company also offers services in the areas of organizational and personal development, change management, leadership and team coaching.

Skat Consulting AG 

St. Gallen · Since 1998

The core activity of Skat Consulting Ltd. is international cooperation and consulting, particularly in the areas of water, construction, energy and governance, with the aim of improving the living conditions of people in developing countries.

S & L Consulting S.A. 

Villars-Sur-Glâne · Since 1986

The core activity of S&L Consulting SA is to provide technical consulting services to the oil and gas industry, particularly in the field of steel pipe applications (Casing, Tubing and accessories) for oil land drilling (OCTG). The services include, among others: material compatibility assessment, connection selection for OCTG, OCTG field engineering, OCTG selection and design, specifications and quality control. The company supports operators and manufacturers in optimizing, specifying, tendering, auditing, qualifying, quality assurance and failure analysis of steel pipe applications.

Solfor SA 

Plan-Les-Ouates · Since 1968

The core activity of Solfor SA is to provide engineering services in the field of construction, particularly in the areas of: mobility infrastructure, public space design, water and wastewater management, construction of concrete structures, and laboratory testing for road infrastructure. The company thus offers a wide range of services in the field of civil engineering, from planning and execution of infrastructure projects to laboratory testing and expert opinions.

Sollberger Ingenieure GmbH 

Bern · Since 2003

The core activity of Sollberger Ingenieure GmbH is the provision of engineering services in the field of energy and control technology, particularly in the areas of: Energy Data Management, Smart Metering, Control Technology, Cyber Security, Detail Engineering, Smart Grid, Power Quality, and Technical Communication. The company offers consulting and planning services for energy supply companies and other customers specializing in the planning, implementation, and maintenance of energy and control technology systems.

SOTECH AG 

Neukirch (Egnach) · Since 2015

The core activity of SOTECH AG is the development, manufacture and distribution of grinding technology products, in particular grinding wheels, as well as consulting and supporting customers in optimizing grinding processes.

Soundtherm Bauphysik GmbH 

Schlattingen · Since 2008

The company soundtherm is an engineering firm specializing in the fields of building physics, acoustics, and energy. The core activity of the company includes providing services such as measurements, expert opinions, certifications, and consulting in these areas.

Speedo-Optic AG 

Laupen Zh · Since 1989

The core activity of speedo-optic ag is the manufacture and distribution of fibre optic (FO) products and accessories, particularly patch cords, FO cables, KEV systems and network components. In addition, the company also offers services such as the configuration of FO cables, the installation of fibre optic networks and the measurement and testing of FO connections.

SPIROLA Elektronik GmbH 

Pfäffikon Zh · Since 2016

The core activity of SPIROLA Elektronik GmbH encompasses the development and manufacture of customized software and hardware solutions in an industrial environment, particularly in the areas of: software development, hardware development, development and distribution of laser marking systems, production of measuring and testing devices, and manufacturing and repair of electronic components. Additionally, the company offers services such as assembly and soldering work, sales and marketing.

Stalder & Felber Planungs AG 

Reiden · Since 1998

The core activity of Stalder & Felber Planungs AG is the planning and consulting of building technology, particularly in the areas of heating, ventilation, air conditioning and refrigeration. The company offers customized solutions for new construction, renovation and refurbishment of buildings and advises clients on energy consulting and concepts.

Steimer DS SA 

Vernier · Since 1987

The core activity of Steimer DS SA is the planning, implementation and maintenance of pumping systems, as well as the provision of engineering services in the field of water and wastewater management, including the areas of drinking water supply (STAP), wastewater treatment (STEP) and irrigation. The company is also active as an authorized service partner of the pump manufacturer Grundfos and additionally offers services in the field of maintenance of industrial machines.

STERIMED engineering and services SA 

Lausanne · Since 2011

STERIMED engineering and services SA designs and manufactures sterilisation systems for medical devices, covering both steam and ethylene oxide technologies. The company provides services including preventive and corrective maintenance, calibration, revalidation, spare parts supply and turnkey projects that can include gas treatment and automation/handling systems.

Strapag AG 

Lyss · Since 2007

The core activity of STRAPAG is the planning, implementation and maintenance of wireless communication networks, particularly in the field of radio networks, microwave and security radio solutions. The company offers comprehensive services, including Wireless Engineering, Mobile Inhouse Solutions, Site Engineering, Measurement Technology, Drone Technology and Security and Operational Radio. The activities include the planning, installation, configuration and maintenance of communication networks, as well as the development of special software tools and the execution of measurements and tests.

Swiss Commissioning GmbH 

Zug · Since 2019

The core activity of Swiss Commissioning GmbH is the provision of services in the field of commissioning of plants, particularly in the pharmaceutical industry and other sectors. This includes: Commissioning Service: The execution of commissioning of plants; Commissioning Management: The leadership and coordination of commissioning; Commissioning Coordination: The coordination of commissioning according to customer requirements; Commissioning Training: The execution of training and education for employees in the field of commissioning of plants. The company offers these services with a focus on Swiss quality and German thoroughness.

Synplan AG 

Schlieren · Since 2022

Synplan AG is an engineering firm for building services that provides project planning and design for heating, ventilation, sanitary and sprinkler systems as well as sewer planning. The company also offers consulting, feasibility studies and coordination services for building-services trades across project phases.

tbf-marti ag 

Schwanden Gl · Since 1973

The core activity of tbf-marti ag is the planning, project management and construction management of construction projects, particularly in the field of civil engineering and structural planning. The company offers services such as civil engineering, project management, construction management and 3D modeling, and is involved in the planning and realization of construction projects from conception to completion.