Technical Consulting & Engineering

Sinus Control GmbH 

Alpnachstad · Since 2019

SIPENCO GmbH 

Boniswil · Since 2002

Sittertaler fabrication services GmbH 

St. Gallen · Since 2019

siworks Infrastruktur AG 

Schindellegi · Since 2023

siworks Infrastruktur AG provides services for building and infrastructure projects, including railway infrastructure, fire protection systems, building automation and photovoltaic systems. The company also offers flat-roof monitoring, nurse-call systems, construction management, group services (accounting, IT, marketing) and production of electrotechnical components.

SK Umwelt GmbH 

Dübendorf · Since 2021

The core activity of SK Umwelt GmbH is consulting and implementing projects in the field of environmental protection, particularly in the remediation of contaminated sites, soil treatment and the management of neophytes. The company offers services such as soil-related construction supervision, environmental consulting and planning, as well as conducting investigations and analyses in the field of environmental protection.

Sky Unlimited GmbH 

Affoltern Am Albis · Since 2003

Smart-Sailor GmbH 

Madiswil · Since 2018

SMI Snow Makers AG 

Thun · Since 1984

The core activity of SMI Snow Makers AG is the development, manufacture and implementation of snowmaking system technology for ski resorts, with a focus on sustainable optimization and ecological sustainability. The company offers products and services aimed at improving snow production and minimizing environmental impact. This includes specialized products such as Snomax, an ecological, plant-based protein that is used to enhance snow formation.

SoftART AG 

Zurich · Since 1999

The core activity of SoftART AG is the development of seamless processes through the use of technically scientific software solutions. Specifically, this includes the automation of CAD and manufacturing processes, offline programming of robots, and the reverse engineering of components. The company provides engineering services aimed at increasing the efficiency of processes through the targeted use of software.

SoilCom GmbH 

Zurich · Since 2000

SoilCom GmbH provides consulting and planning services in soil protection and hydrology. Its offerings include soil mapping, soil-related construction supervision (BBB), FFF compensation projects, environmental planning and assessment of contaminated soils, as well as hydrological analyses such as estimation of low-flow and flood discharges and the production of runoff-process maps.

Solairtec Engineering GmbH 

Grünenmatt · Since 2010

SOLIDESWISS GmbH 

Grono · Since 2014

SolOritur GmbH 

Zofingen · Since 2015

The core activity of SolOritur GmbH is the planning, installation and marketing of photovoltaic systems for the generation of solar power. The company offers solutions for decentralized energy generation and advises customers on the transition to renewable energies, particularly solar energy.

Solubois ZH GmbH 

Winterthur · Since 2000

The core activity of Solubois is the execution of construction projects in various segments, including residential construction, renovation and refurbishment, office and commercial construction, public construction, as well as cultural and special construction.

Pochetti 

Ostermundigen · Since 2022

SOPA GmbH 

Sigriswil · Since 2024

Space Acoustics GmbH 

Rafz · Since 2017

The core activity of Space Acoustics GmbH is consulting and contract engineering in the fields of acoustics and thermotechnology, particularly in the following specific activities: environmental acoustics, interior acoustics and noise reduction, acoustic testing, analysis of noise and vibrations in spacecraft, thermal analysis of spacecraft, motor thermics, thermo-elastic analysis, and FEM dynamic analysis. The company supports industry in the development of products and solutions in these areas, from short-term problem-solving to long-term partnerships in complex development projects.

Spadini Audio 

Bavois · Since 2014

Spagnuolo Gebäudetechnik GmbH 

Eschenbach Lu · Since 2012

The core activity of Spagnuolo Gebäudetechnik GmbH is the planning, consulting and realization of building technology systems, including heating, ventilation, sanitation, air conditioning and refrigeration, as well as special systems and Building Information Modeling (BIM). The company provides general planning services for the entire building technology and advises customers on new buildings, conversions and renovations.

Spraylab SA 

Lugano · Since 2014

Spraylab SA is a company active in the trading and marketing of components and complete systems for processes based on fluid handling and spray technologies. Its product range includes industrial spray nozzles, filters, CIP tank washers, firefighting products and stainless-steel fittings and valves, and it supplies engineered systems such as evaporative cooling, DeNox installations and scrubbers; a laboratory performs flow, spray-angle and droplet-size measurements.