| Business | Phone |
| Acson Tool Co 62 Carroll Ave, Bridgeport 6607 | (203) 334-8050 |
| Atlas Hobbing & Tool Co 25 Twitchell St, Bridgeport 6606 | (203) 367-0311 |
| Penn Plastics Inc 401 Bishop Ave, Bridgeport 6610 | (203) 335-6434 |
| Penn Plastics Tool Room 409 Bishop Ave, Bridgeport 6610 | (203) 336-4611 |
| Mohawk Tool & Die Mfg Co Inc 25 Wells St, Bridgeport 6604 | (203) 367-2181 |
| J Horvath Co 220 Orland St, Bridgeport 6605 | (203) 336-9686 |