| Business | Phone |
| Paul Leblanc Inc 43 Johnson St, Leominster 1453 | (978) 537-9572 |
| Northern Products Inc 645 Lancaster St, Leominster 1453 | (978) 840-3383 |
| P K Plastics 106 Carter St, Leominster 1453 | (978) 534-1999 |
| Moldmore Corp 233 Florence St, Leominster 1453 | (978) 514-9898 |
| Jam Plastics Inc 22 Tucker Dr, Leominster 1453 | (978) 537-2570 |
| Wiltec Inc 35 Tisdale Ave, Leominster 1453 | (978) 537-1497 |
| American Mold Corp 31 Spruce St, Leominster 1453 | (978) 534-0009 |
| Anthony Tool & Die Corp 21 Central Ct, Leominster 1453 | (978) 537-0775 |
| Acro-Matic Plastics Corp 31 Jytek Park, Leominster 1453 | (978) 537-4102 |
| Advanced Prototypes & Molding 21 Howe St, Leominster 1453 | (978) 534-0584 |
| Art Plastics Mfg Corp 75 Water St, Leominster 1453 | (978) 537-6640 |
| Banner Mold & Die Co 251 Florence St, Leominster 1453 | (978) 534-6558 |
| Basque Plastics Corp 28 Jytek Park, Leominster 1453 | (978) 537-5219 |
| Uni Product Inc 85 Pleasant St, Leominster 1453 | (978) 537-8946 |
| Union Products Inc 511 Lancaster St, Leominster 1453 | (978) 537-1631 |
| C Plastics Corp 243 Whitney St, Leominster 1453 | (978) 534-6876 |
| Stan-Cast Corp 215 Hamilton St, Leominster 1453 | (978) 537-8306 |
| Castle Plastics Inc 11 Francis St, Leominster 1453 | (978) 534-6220 |
| K & C Plastics Inc 18 Crawford St, Leominster 1453 | (978) 537-0605 |
| Res-Tech Corp 554 Willard St, Leominster 1453 | (978) 537-2748 |
| Delta Molding 637 Lancaster St, Leominster 1453 | (978) 537-8343 |
| Grove Products Inc 17 Marguerite Ave, Leominster 1453 | (978) 534-5188 |
| F & M Tool & Plastics 62 Lakeview St, Leominster 1453 | (978) 537-0290 |
| First Plastics 22 Jytek Dr, Leominster 1453 | (978) 537-1606 |
| Plastic Recovery 171 Lancaster St, Leominster 1453 | (978) 534-9196 |
| Georgia-Pacific Corp 149 Hamilton St, Leominster 1453 | (978) 537-4701 |
| G & S Tool & Die Inc 1285 Central St, Leominster 1453 | (978) 534-5533 |