- DSU-38/3,Pakistan Steel,Industrial Estate,Bin Qasim, Karachi
- www.yusufgroup.com
- 021-34723643
- C-I/101,70-72,Sector 12/C,North Karachi Industrial Area, Karachi
- www.zaibengg.com
- 021-36951651
- Plot No.C-I-82,Sector 12-C,North Karachi Industrial Area, Karachi
- www.ziaengg.com
- 021-36903669
- 1D-4,Sector 16-A,Bufferzone,North Karachi, Karachi
- www.zubairgroup.com.pk
- 021-36959216