| Business | Phone |
| L & L Cam & Machine Corp 15 Industrial Dr, Smithfield 2917 | (401) 231-5000 |
| L & L Cam & Machine Corp Indstrl Dr, Smithfield 2917 | (401) 232-1110 |
| Precision Turning 15 Enterprise Ln, Smithfield 2917 | (401) 231-1628 |
| Prospect Design & Production 301 Farnum Pike, Smithfield 2917 | (401) 233-8091 |