| Business | Phone |
| Neyra Industries Inc 27 Industrial Dr, Trenton 8619 | (609) 586-4200 |
| Ewing Township Road Dept 410 4th St, Trenton 8638 | (609) 882-3382 |
| Hamilton Twp Public Works Office 240 Tampa Ave, Trenton 8610 | (609) 890-3560 |
| Chesterfield Road Dept 300 Bordentown Chesterfield Rd, Trenton 8620 | (609) 298-1668 |