TRANS OCEAN DEEPWATER DRILLING INC.
GHANA PORTS AND HARBOURS AUTHORITY
MAERSK GHANA LTD
WILBROS INTERNATIONAL
BALKAN ENERGY
HORIZON MARINE CONSTRUCTION
MICHELETTI & CO LTD
RED BACK MINING(CHIRANO GOLD MINES LTD)
GOLDFIELDS GHANA LTD.
ANGLOGOLD ASHANTI LTD.
PERSEUS MINING
AFRICA MINING SERVICES (AMS)
ORSAM ORTEC GROUP
TEMA OIL REFINERY
GLOTEC ENGINEERING LTD.
GECAD
ABOADZI THERMAL POWER PLANT
AGS
NOBLE GOLD
SAFEBOND
SPAANS BABCOCK
SYAMA MINES (MALI)
GOLDEN STAR RESOURCES BOGOSO & BENSO
YOUGA MINES (BURKINA FASO)
LOGISTIQUE COMMERCIALE D'AFRIQUE (TOGO)
SUPERMARITIME GHANA LTD (TAKORADI & TEMA)