| Business | Phone |
| Administration & Management 250 Main St, East Haven 6512 | (203) 468-3204 |
| East Haven Animal Control 189 Commerce St, East Haven 6512 | (203) 468-3249 |
| East Haven Building Dept 250 Main St, East Haven 6512 | (203) 468-3216 |
| East Haven Counseling & Comm 595 Thompson Ave, East Haven 6512 | (203) 468-3297 |
| East Haven Engineering 461 N High St, East Haven 6512 | (203) 468-3250 |
| East Haven Registrar Of Voters 250 Main St, East Haven 6512 | (203) 468-3320 |
| East Haven Registrar Of Voters 595 Thompson Ave, East Haven 6512 | (203) 468-3320 |
| East Haven Sewer Collections 250 Main St, East Haven 6512 | (203) 468-3273 |