| Business | Phone |
| Sperry Automatics Co 1372 New Haven Rd, Naugatuck 6770 | (203) 729-4589 |
| Cole Screw Machine Products 88 Great Hill Rd, Naugatuck 6770 | (203) 723-1418 |
| S & M Swiss Products Inc 122 School St, Naugatuck 6770 | (203) 723-7429 |
| Gar-Mac Screw Machine Inc 70 Great Hill Rd, Naugatuck 6770 | (203) 723-6911 |
| Multi-Metal Mfg 550 Spring St, Naugatuck 6770 | (203) 723-8887 |