- DAL Group
- KA Bodurian & Co. Ltd.
- Computer Man College
Central Medical Agencies
Vehicle, Engineering & Property Dev. Companies
- Golden Arrow Co Ltd (Toyota Sudan)
- El Neileen Engineering & Spare Parts Co. (Massey Ferguson)
- Sutrac (Sudanese Tractor Co.)
- DAL Property Development
- Taylor Woodrow
UN Agencies, Country Representatives and NGO's
- UNMIS (United Nations Mission in Sudan)
- FCO (U.K. Foreign and Commonwealth Office)
World Health Organisation (WHO)
- IOM (International Office of Migration
- Oxfam UK
- British Council
- UK Foreign & Commonwealth Office
- Italian Embassy in the Sudan
Agricultural Companies and Food Processors
- Tetra Pak - Premier Food Products Ltd.
- Kenana Sugar Company
Sayga Flour Mills
Blue Nile Agricultural Company Ltd.
Oil & Gas Companies
- The Shell Company of Sudan
- Higleig Petroleum Services & Investment Co.
- JSC Stroytransgaz
- Weatherford Drilling & Intervention Services
- Greater Nile Petroleum Operating Company (GNPOC)
- Roll'n Oilfield (Sudan) Ltd.
- DODSAL PTE Ltd.
- Schlumberger Overseas (Sudan)
- PetroEnergy E&P Co. Ltd.(Formerly CNPC)
Power and Communications Companies
- HUAWEI Technologies
- National Electricity Corporation (NEC)
- Diesel Generator Company Ltd. (FG Wilson)
- Alcatel Submarine
- Flag Telecom