The Architectural and Technical Company of OUM EL BOUAGHI (S.A.T.O) is a design and engineering office established in 1975, with its headquarters in OUM EL BOUAGHI. It is a state-owned joint-stock company (EPE-SPA) with a capital of DZD 200,000,000.00. Administratively, it is affiliated with the Studies & Engineering Group (G.E.E) in Algiers.

The company comprises three units:

• S.A.T.O (Head Unit & Management)
• B.E.T.E.B TEBESSA (Unit)
• B.E.W.I.S SOUK AHRAS (Unit)