| Company Name | Phone | Fax | Email | Web | Description |
| Niroomand Polymer Co. | 5028921 | 5001476 | info@npolymer.com | www.npolymer.com | |
| Navak Mashad Co. | (0511)8431105 | (0511)2753437 | | | |
| Negin Sanat Paidar Co. | 09113117683 | | | | |
| Novin Sanat Machine Manufacturing Industries Co. | 3705349 | 3490149 | | | |
| Nasr Machine Manufacturing Co. | 5243527,5251197 | 5251197 | | | |
| Nader Hydrolics Co. | 3926124 | 3112585 | | | |
| Nasim Heat Exchanger Co. | 3867512 | 3867512 | | | |
| Nahoran Co. | 7334415 | 7323843 | info@nahoran.com | | |
| Noosh Azar Co. | 8419181-3 | 8414347 | | | |
| Nama Machine Co. | 8737236 | 8739833 | | | |