| 501 | Shakir Engenring Works | | Rawalpindi |
| 502 | Asia Zarai Industry | | Okara |
| 503 | Shaukat & Sons Engineering Works | | Okara |
| 504 | Zohaib Foundry | | Okara |
| 505 | Punjab Agri Industry | | Pakpattan |
| 506 | Fazlia Zarai Industry | | Hafizabad |
| 507 | Super National Zarai Industries | | Faisalabad |
| 508 | Haneef Engineering | | Lahore |
| 509 | Faisalabad Foundry | | Faisalabad |
| 510 | Cnc Engineering | | Faisalabad |
| 511 | Shukat Ramzan | | Kasur |
| 512 | Legal Star Pumps | | Gujranwala |
| 513 | Universal Engineering | | Gujranwala |
| 514 | Mustafa Engineering | | Lahore |
| 515 | M Ameen Engineering Works | | Lahore |
| 516 | Bilal Welding Works | | Muzaffargarh |
| 517 | Progressive Engineers | | Faisalabad |
| 518 | Nab Engineers | SIE Gujranwala 2 | Gujranwala |
| 519 | Shahzad Engineering | | Gujranwala |
| 520 | National Foundary & Engineering Works | | Gujranwala |