Obtaining the following international certificates and improving the quality of services, Zistab Consulting Engineers has succeeded in gaining the trust of clients. In this regard, several civil projects have been carried out or are ongoing.
- International Standards: ISO9001-2015
- Health and Safety System: ISO9001-2015
- Occupational Health and Safety Management System: OHSAS18001-2007
- Environmental Management System: ISO14001-2004
- Integrated Management System (IMS)