Testing and inspection body in
Winterthur

SCONRAIL AG

Since 2006 · 51–100 empl.

The company's core activity is the certification and inspection of vehicles, infrastructure and ECM (European Certification of Management) in the field of railways, including safety assessment and cyber security.

EL-Kontroll GmbH

Since 2014 · 1–10 empl.

EL-Kontroll GmbH carries out independent safety inspections of electrical installations, including periodic inspections and final and acceptance inspections after new construction or renovation. The company also advises on the planning and execution of electrical systems and issues a safety certificate when an installation meets the requirements.

aQuaTox-Solutions GmbH

Since 2016 · 1–10 empl.

The core activity of aQuaTox-Solutions GmbH is the development and implementation of alternative test methods for assessing the toxicity of chemicals on fish and monitoring fish health. In this context, fish cells and fish embryos are used as ethical, versatile and efficient alternatives to conventional animal testing. The company offers GLP-certified laboratory services and focuses on the areas of chemicals, water quality, fish feed and fish health.

heusser umwelttechnik GmbH

Since 2018 · 1–10 empl.

The core activity of the company "heusser umwelttechnik GmbH" consists of consulting, planning and implementing measurement tasks, particularly in the field of measurement and analysis technology for liquids, as well as optimizing process flows and implementing environmental technology. This also includes services such as maintenance and calibration of analysis and measurement equipment, as well as certification of plants.

Spühler Elektrokontrollen GmbH

Since 2023 · 1–10 empl.

The company's core activity is the performance of electrical installation inspections.

Mavidenz Lab AG

Since 2010 · 1–10 empl.·5.0(1)

The Demir Lab company offers a wide range of services in the field of material testing and analysis. The company's core activities include: mechanical testing (e.g. tensile testing, impact testing), metallographic examinations (e.g. macro and micro sections, grain size determination), non-destructive testing (e.g. UT, MT, PT, VT), damage analysis and investigation, surface hardness testing (e.g. Brinell, Rockwell, Vickers), chemical analysis (e.g. spectroscopy), consulting and training in metallurgy and heat treatment, quality assurance and control (e.g. test plans, certificates of conformity, audit/acceptance). As an independent testing laboratory, the company supports customers in ensuring and verifying the quality of their products.

videmus AG

Since 2020 · 21–50 empl.·5.0(1)

videmus AG prepares medical assessments for disability insurance, daily allowance and accident insurers, courts and private individuals. Its mono-, bi- and multidisciplinary assessments cover fields including internal medicine, neurology, psychiatry, orthopaedics and rheumatology.

Kompetenzzentrum Gutachten GmbH

Since 2017 · 1–10 empl.·2.0(4)

The core activity of Periziando GmbH is the creation of psychological expert opinions and personality analyses for companies, authorities and private individuals. This includes in particular: Identifying personality problems in employees and applicants, creating character-based requirement profiles for positions to be filled, conducting test-psychological examinations and explorations, developing recommendations for action to remedy or compensate for risk factors, conducting coaching measures in the event of behavioral problems in employees, and creating traffic psychological expert opinions and conducting training and seminars. The company offers its services both before and after the hiring of employees and supports companies and authorities in preventing misconduct and promoting a positive work environment.

Elektroberatung Kurzbein

Since 2025 · 1–10 empl.

Elektroberatung Kurzbein provides independent electrical safety consulting, safety inspections and equipment testing. The company checks electrical installations and portable electrical devices in line with applicable standards, documents the results and gives recommendations for safe operation and remedial measures.

Hadad Tribomatix

Since 2025 · 1–10 empl.

Hadad Tribomatix provides services in tribology, materials testing and surface engineering. Its work includes tribological testing, material and surface characterization, failure analysis, and consulting and technical development for coatings and wear reduction.

ESK Wagner Rolf GmbH

Since 2005 · 1–10 empl.

Wista Elektro AG

Since 2009 · 1–10 empl.