Is a private Group of Companies founded by Hadj Mohamed Zergoun in 1948 as « Zergoun Entreprise » in Ouargla, Seventyu (70) kilometers away from Hassi Messaoud. At the start, ils main activities are civil work, Transportation to support oil and gas drilling contractors, and drilling shallow water wells for agricultural needs for states owned and privates companies. After retirement of the founder, Hadj Mohamed Zergoun, his sons took over the company and extended the activities to cover other fields.
In 1995, Zergoun Brothers Group, through its affiliate, SARL TBRHO, became one of the leader civil work companies to support National and international companies in the exploration and the development of Oil and gas fields.