SIGMA FOR OIL AND GAS FIELD SERVICES
Sigma for Quality Assurance Services
Sigma for Smart Services
SIGMA GENERAL MAINT. CONT. (L.L.C)
SIGMA GLOBAL EVENT MANAGEMENT L.L.C
SIGMA GLOBAL GENERAL TRADING L.L.C
SIGMA GLOBAL TR.LLC.
SIGMA GULF GEN. TRAD. CO. WLL
SIGMA GULF PAINTS, VARNISHES & ADHESIVES RETAIL CO. WLL
SIGMA INFORMATION TECHNOLOGY CONSULTANTS
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