Reliable Builders Ltd., National Development Engineering Ltd, M/S Saleh Ahmed, Masud Hi-Tech Engineering Ltd., Sagar Info Builders Ltd., J Enterprise, M/S. M.A. ENGINEERING, Hassan Techno Builders Ltd., Muhammad Aminul Haque (Pvt.) Ltd, M/S ZAMAN ENTERPRISE, MD. MOYENUDDIN (BASHI) LIMITED , Rana Builders (Pvt.) Ltd., M/S. AL-AMIN TRADERS , M/S. Hasmat & Brothers, M/S Bhuiyan Construction, M/S. Mir Brothers, Concrete & Steel Technologies Ltd, M/S. Karim & Co., M/s. Sardar Enterprise, BHAWAL ENGINEERS & CONSTRUCTION LTD, MD. KHURSHADUZZAMAN, Nabarun Traders Limited, MOZAHAR ENTERPRISE (PVT.) LTD., Muhammad Aminul Haque (Pvt.) Ltd, Muhammad Aminul Haque (Pvt.) Ltd, Noor-Zaman Engineering Foundation, Western Engineering ( Pvt.) Ltd, M/S. Selim & Brothers, Masud Steel Design BD.LTD., Spark Vision Limited, Spark Vision Limited, M/s. AB Construction, Abed monsur constructions,Taher Brothers Ltd., MA Zaher Limited ,Toma Construction & Co. Limited, Abdul Monem Ltd, M/S Riasat & Brothers, Mohammed Eunus & Brothers (Pvt.) Ltd., S.H.K Construction (Pvt) Ltd, M/S. THE ENGINEERS SYNDICATE, S. Ananta Bikash Tripura Limited, Mr. U.T.Mong, M/S SOIL & FOUNDATION ENGINEERS, S. Ananta Bikash Tripura Limited.
