de Glossar


Our Goal

An independent Swiss SME

SIGRIST company culture is based on a symbiosis of tangible and intangible values which we continuously develop to the benefit of all stakeholders. We focus on responsible entrepreneurial behaviour, whether it concerns our business activities, relations to employees and other stakeholders, or relevant environmental issues. We believe that fairness, reliability and sustainability are success factors which are just as important as economical aspects.

The realization of this concept is linked to freedom and independence. From the very beginning we carefully safeguarded our independence. Vereinigung Bizun, an association in accordance with the Swiss code of civil law, was founded to secure self-determination. Today it is the sole owner of the company group. Vereinigung Bizun functions as a holding company and provides guidance to the SIGRIST team concerning the implementation of the corporate culture.

Firmensitz in Ennetbürgen


SIGRIST - Manufacturer of high quality process photometers

At our head offices in Ennetbürgen, Switzerland, a staff of 60 people works in development, production, sales and customer services. Our qualified and motivated team is focussed on product quality and services that ensure customer satisfaction.

70 sales partners in 80 countries worldwide guarantee that new and existing customers will always have a SIGRIST representative nearby. Ongoing training and support are provided to our sales and service partners by HQ specialists, thus guaranteeing that our customers receive competent advice and efficient support when it comes to the application of SIGRIST products.





One of the first SIGRIST Photometer


SIGRIST as employer

Currently there are no open job opportunities.

As a growing, internationally operating Swiss SME, we are always interested in capable and quality-conscious employees at all levels of the company. Are you looking for an exciting challenge? Then send your complete application documents to without obligation.




The goal of our management system is to permanently improve all internal processes and activities, and also to optimally tailor our services and products according to the needs and expectations of our customers and stakeholders. To this end, our management system is a comprehensive planning, management and control tool for the constant optimization of our processes and services.

Zertifikat ISO 9001:2015

System certifications

  • Quality management according to ISO 9001:2015
  • Environmental management according to ISO 14001:2015
  • Occupational health and safety management according to OHSAS 18001:2007
  • Known consignor (BAZL)

Thumbnail of Sales literature 11748E Rev. 3
IQNet and SQS Certificate Management System
Details Other languages & file formats Download PDF – English – 64

Product certifications and testing

  • ATEX 2014/34/EU, EN ISO 80079-34 and IECEx OD 025 Ed. 3 for equipment used in explosive atmospheres
  • Manufacturer’s declarations according to EN 1935/2004 for equipment with special hygiene requirements
  • Component certifications according to the European Hygienic Engineering & Design Group (EHEDG) (Type EL – Class I) for individual instruments.
  • Suitability criteria met according to EN 14181 and EN 14956 QAL 1 for dust measuring devices.
  • IMO certificate (U.S. Coast Guard Certificate) and KCs certificate (Korea Safety Certification)
  • GOST certificates 2014 – 2019 for VisGuard, FireGuard (Russia)

These certificates can be found on the corresponding product page, under documents / certificates.

Other roles and commitments

  • Member of the SUVA "Sicherheits-Charta" (safety charter)
  • We support the “Conflict Minerals” supply chain initiative as detailed in the Dodd-Frank Wall Street Reform and Consumer Protection Act. As a manufacturer of optical measuring instruments, we strive to ensure all of our purchased parts are made from conflict-free materials.
  • We fully implement the provisions of the RoHS Directive 2011/65/EU. Our products do not contain any substances in concentrations that exceed the limits for forbidden materials as detailed in the EU Directive.


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René Gehri
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