| Company Name | Phone | Fax | Email | Web | Description |
| Iran Masterbatch Co. | 6026432 , 6026827 | 6026832 | | | |
| Iran Carbon Co. | 8771086,8791649 | 8774748 | | | |
| Isfahan Plastic Co. | (0312)5836126 | (0311)2218938 | | | |
| Isfahan Ghatreh Co. | (0335)5373126 | (0335)5373127 | | | |
| Isfahan Pooshan Co. | (0311)2361954, (0311)2220473 | (0311)2222299 | | | |
| Isfahan Foam Co. | (0331)52444 | | | | |
| Ilkhan Technical Institution | 6504515 | 6504515 | | | |
| Imen Payanoor Co. | 4078221 | 4078221 | | | |
| Itrac Co. | 4904141,4904142,4904143 | 4905541 | info@itrac.com | | |
| Iran Synthetic Leather Co. | 8717131, 8713706 | 8710968 | | | |