The Citadel Calibration Services LLC and Citadel Oilfield Services LLC is a subsidiary of Citadel Engineering Company (CEC) which has been part of the group from 2020

Citadel Engineering Company is a company founded on the principles of adventure and engineering.

The management team of the Citadel comes from the professional engineering and Inspection field, which leads the company in the Middle East.

Citadel Engineering Company has been established to provide engineering services in addition to its regular business activities. The company was established to address the needs of customers in different fields with advanced technology and high quality services in the field of Inspection, Calibration, Testing and Certification.