- Imco Engineering & Construction Company W.L.L (Qatar)
- Tadmur Logistics W.L.L (Qatar)
- Kettaneh Construction Emirates L.L.C (Uae)
- Sinohydro Corporation. (Qatar)
- Manco International Genaral .(Qatar)
- Kettaneh Construction. (Qatar)
- Shapoorji Pallonji Wll .(Qatar)
- Safari Mall. (Qatar)
- Jersey Group W.L.L .(Qatar)
- Bilfinger Berger W.L.L (Qatar)
- Mechel Mechel Engineering W.L .(Qatar)
- Alfiniqia Contracting And Trading Co. Wll .(Qatar)
- Ohl International Obrascon Huarte Lain .S A . (Qatar)
- American Gulf Trading & Contracting L.L.C .(Qatar)
- Almana Trading Company Wll .(Qatar)
- Asqalan General Contracting Co. L.L.C. (Uae)
- Yuksel Construction Co. (Qatar)
- Catic The Chinese Co . (Uae)
- American Qatari French Trad &Cont Co. (Qatar)
- Camille Hajjar, Admin &Finance Director, Butec .
- Matta Contracting Wll . (Qatar)
- New Land Trading & Contracting W.L.L (Qatar)
- Al Arrab Trad And Contracting Co. (Qatar)
- Al-Masa Computer Technology . (Qatar)
- New International Technology Co. (Qatar)
- Al-Muntazah Plaza Hotel .(Qatar)
- Al-Khaleej Trading & Technical Service. (Qatar)
- Al-Huda Engineering Works .(Qatar)
- Zublin International. (Qatar)
- J & M Al Jaber & Makhlouf Contracting. (Qatar)
- Powerline Engineering Wll. (Qatar)
- Sinohydro Lusail Cp1 Project. (Qatar)
- United Precast Concrete Co. (Qatar)