| Company Name | Phone | Fax | Email | Web | Description |
| Laleh Hoor Co. | 6432560 , 5658181 | 6426860 | | | |
| Laran Machine Co. | 3934327,3916604 | 8718460 | | | |
| Lerantik Manufacturing & Industrial Co. | 4655417 | 46498100, 46411100 | | | |
| Lanar Co. | 8752487-8 | 8752486 | | | |
| Lentsaz Manufacturing & Industrial Co. | 8432633-4 | 8409399 | | | |
| Lastik Karan Manufacturing Co. | 8768203 | 8754219 | bmaamdoohi@hotmail.com | | |
| Lotfi Plastics Manufacturing Co. | 3709751 | | | | |
| Labbani Plastic Co. | 3934881, 3907741 | 3906986 | | | |
| Lastik Gostar Sameh Co. | 6816491, 6812191, 6808662 | 6815604 | | | |
| Lauran Plastic Co. | 7337657, 7339861 | | | | |