Our integrated management system for Health, Safety and Environment (HSE) contributes at Group level to making sustainability a component of all our business processes and of our employees’ everyday lives.
It helps us to systematically plan, implement, and improve our processes in the areas mentioned. This promotes the health of our employees and also has a positive effect on their performance. It also helps us to bid on new projects in which potential commercial customers require their suppliers to provide HSE certificates.
Our Group-level HSE management system is covered by an umbrella certificate based on the international standards ISO 45001(formerly OHSAS 18001) for occupational health and safety and ISO 14001 for environmental management. For some units, it also covers international standard ISO 9001 for quality management.
Some of the national companies are not covered by an umbrella certificate because they have their own certifications, some of which are even more comprehensive. This is the case in Greece, for example, where the OTE Group has its own integrated management system. In addition to the standards named above, it also covers the international standards ISO 50001 for energy management and ISO 27001 for data security.
All of our employees in Germany have ISO 14001- and ISO 45001-certified workstations. As a result of organizational changes within the Group, changes were made to the umbrella certification method. Certificate coverage remains at the same level as in the previous year, however, with international coverage of 98 percent of employees.
Several companies ceased being subsidiaries of the Deutsche Telekom Group in 2022 and are therefore no longer part of Deutsche Telekom’s umbrella certification:
Magenta Telekom Infra GmbH, Austria
T-Mobile Netherlands
Limited Liability Company Deutsche Telekom GBS RUS, Russia
Limited Liability Company Deutsche Telekom IT RUS, Russia
Limited Liability Company T-Systems RUS, Russia
An office in Szeged, Hungary
Certifications at the following national and international companies were added in 2022:
Deutsche Telekom Service Europe Czech Republic s.r.o. (certification in accordance with ISO 9001). With this step, all three international business areas of DT Service Europe – Slovakia, Romania and Czech Republic – have been certified in accordance with the ISO 9001, ISO 14001, and ISO 45001 standards.
Deutsche Telekom Global Business Solutions China (Hong Kong) Limited (certified in accordance with ISO 14001 and ISO 45001)
Deutsche Telekom IoT GmbH (certification in accordance with ISO 14001 and ISO 45001)
Detecon International GmbH (certification in accordance with ISO 14001 and ISO 45001)
Our integrated management system for Health, Safety and Environment (HSE
) contributes at Group level to making sustainability a component of all our business processes and of our employees’ everyday lives.
It helps us to systematically plan, implement, and improve our processes in the areas mentioned. This promotes the health of our employees and also has a positive effect on their performance. It also helps us to bid on new projects in which potential commercial customers require their suppliers to provide HSE certificates.
Our Group-level HSE management system is covered by an umbrella certificate based on the international standards ISO 45001(formerly OHSAS 18001
) for occupational health and safety and ISO 14001 
for environmental management. For some units, it also covers international standard ISO 9001 
for quality management.
Some of the national companies are not covered by an umbrella certificate because they have their own certifications, some of which are even more comprehensive. This is the case in Greece, for example, where the OTE Group has its own integrated management system. In addition to the standards named above, it also covers the international standards ISO 50001
for energy management and ISO 27001 for data security.
All of our employees in Germany have ISO 14001- and ISO 45001-certified workstations. As a result of organizational changes within the Group, changes were made to the umbrella certification method. Certificate coverage remains at the same level as in the previous year, however, with international coverage of 98 percent of employees.
Several companies ceased being subsidiaries of the Deutsche Telekom Group in 2022 and are therefore no longer part of Deutsche Telekom’s umbrella certification:
Certifications at the following national and international companies were added in 2022: