| Business | Phone |
| Ampac Enterprises 17 Leominster Rd, Shirley 1464 | (978) 425-9270 |
| Ampac Enterprises Inc 1 Main St, Shirley 1464 | (978) 425-6266 |
| United States Helmet Mfg Inc 17 Leominster Rd, Shirley 1464 | (978) 425-0383 |
| Blue Collar Distribution 2 Shaker Rd # D108, Shirley 1464 | (978) 425-6681 |