- Animal Control
- Bigelow Senior Center
- Building Department
- Community & Economic Development
- Conservation Department
- Education Department
- Engineering Department
- Finance Department
- Fire Department
- First Selectman's Office
- Harbor Master
- Health Department
- Housing Authority
- Human Resources Department
- Human and Social Services Department
- Information Technology
- Legal Department
- Libraries
- Parking Authority
- Parks and Recreation
- Police Department
- Public Works
- Public Safety
- Purchasing Department
- Registrars of Voters
- Sewer Department
- Solid Waste & Recycling
- Tax Assessor
- Tax Collector
- Town Clerk
- Town Plan & Zoning Department
- Tree Warden
- Water Pollution Control Facility (WPCF)