EST Customer satisfaction results (2018) - 88%

EST S.A. aims to continually improve the quality of its services with customers. EST has implemented the integrated management system (according to ISO 9001:2008, ISO TS 29001:2010, OHSAS 18001:2007 and NP 4457:2007).

All year long we ask you to evaluate us, in order we may keep our high level performance .

Thank you very much.

We are proud of each achievement!