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Al Hassan Engineering is registered and pre-qualified with all the key Ministries, local bodies and private organizations operating in Power, Oil, Gas & Petrochemicals, Water and Wastewater sectors in Oman.

A representative list is given below:

Petroleum Development Oman

OHSAS 18001-2007 upto April 2018

EN ISO 14001-2004 upto April 2018

ISO 9001. 2008 upto March 2018

Ministry of Commerce and Industry


Ministry of Oil & Gas

Royal Court Affairs

Tender Board

Oman Chamber of Commerce and Industry

Ministry of Defence

Muscat Municipality