Gina Queensway Nig Ltd Plot 2 Presidential Estate GRA +234 84 333524 Engineering Design and Consultancy
Danelec Limited Plot 278 Trans-Amadi, Industrial Layout, P.O Box 4308, Port Harcourt +234 84 233285, 239282, (0)803 3103782 Engineering Design and Consultancy
Danglobe High Technology Consortium Plot 28 Stadium Road +234 84 57246, 08033098317 Engineering Design and Consultancy
DBN(De Lattre Bezons) Nig Ltd Plot 107 Trans Amadi Ind Layout +234 84 238016 Engineering Design and Consultancy
DeltaAfrik Engineering Limited (Deltatek/Worly Parsons) 6/7th Fl, City Express Building, Plot 1637 Adetokunbo Ademola Street +234 1 4618508, 4616137-4 Engineering Design and Consultancy
Dextron Engineering 16, Oko Awo Close +234 1 2705631, (0)803 6708417 Engineering Design and Consultancy