Certified quality and sustainability
GLS ensures, controls and improves quality and sustainability with a Europe-wide quality and environmental management system. It is certified according to DIN ISO 9001:2015 and 14001:2015 by DQS, one of the largest international providers of management system certifications. GLS thus meets high, internationally recognized standards.
Dekra EN 16258 Certification for our calculation method of our energy consumption
GLS received the Dekra EN 16258:2012 Certification for its method of calculation and declaration of its energy consumption and GHG emissions for transport services. The conformity was adduced with audit report no. A-21011499.
GLS contributes, therefore, to a safer and more sustainable world.
Environmental management: GLS Certified to ISO 9001
Comprehensive assurance of quality includes well-defined work processes, quality guidelines with inspection routines and regular audits.
GLS has established and maintains a quality management system that meets high, internationally recognized standards according to DIN ISO 9001:2015.
Download certificate
Environmental management: GLS Certified to ISO 14001
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.
EcoVadis Bronze Medal
GLS Group received the EcoVadis Bronze Medal * in 2025 with 70 points, ranking in the top 16% of companies assessed globally.
*This certification is renewed annually, evaluates sustainability across Environment, Procurement, Ethics and Labor & Human Rights.
CDP - Carbon Disclosure Project
The Carbon Disclosure Project is a non-profit organization that collects and discloses environmental data from companies on the basis of standardized questionnaires. GLS takes part in the annual survey together with its parent company International Distribution Services plc.