Certified quality and sustainability

GLS ensures, monitors and improves quality and sustainability with a Europe-wide quality and environmental management system.
The company is certified in accordance with DIN ISO 9001:2015 and 14001:2015 by DQS, one of the largest international issuers of management certification.
As such, GLS meets internationally recognised high standards.

Seal of approval for environmental and quality management

GLS operates in an environmentally friendly manner and puts sustainability projects into practice at all national subsidiaries. GLS has gained ISO 14001:2015 certification for its environmental management system in all European countries. This globally valid and recognised standard is one of the most important environmental management benchmarks for manufacturing companies and service providers alike.

Comprehensive quality assurance at GLS includes precisely defined work processes, quality guidelines with inspection routines, and regular audits. Quality indicators are managed on an ongoing basis.

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EcoVadis Silver
EcoVadis Silver

EcoVadis is a sustainability ratings platform that uses standardised questionnaires and research to evaluate a company's sustainability commitments. In June 2020, GLS achieved the EcoVadis Silver rating for the second time.

CDP – Carbon Disclosure Project

The Carbon Disclosure Project is a non-profit organisation that collects and publishes companies’ environmental data on the basis of standardised questionnaires.

GLS takes part in the annual survey together with its parent company, Royal Mail.