  | 21st Century Parks Committee | |
| | 80 Harbor Drive Renovation Building Committee | |
| | Affirmative Action Monitoring Committee | |
| | American Rescue Plan Task Force | |
| | Anti-Racism Task Force | |
| | Area Transit District | |
| | Arts Commission | |
| | Board of Assessment Appeals | |
| | Board of Education | |
| | Board of Ethics | |
| | Board of Health | |
| | Charter Revision Commission | |
| | Citizens Advisory Committee | |
| | Clean Energy Taskforce | |
| | Code Enforcement Committee | |
| | Commission on Conservation & Agriculture | |
| | Committee Concerning People with Disabilities | |
| | Common Council | |
| | Complete Streets & Bikeway Committee | |
| | Design Review & Preservation Board, Middletown | |
| | Downtown Business District | |
| | Eckersley Hall Building Committee | |
| | Economic Development Commission | |
| | Farm Hill School Roof Building Committee | |
| | Finance & Government Operations Commission | |
| | Firing Range Building Committee | |
| | General Counsel Commission | |
| | General Counsel Review Committee | |
| | Harbor Improvement Agency | |
| | Housing Authority | |
| | Human Relations Commission | |
| | Inland / Wetlands & Water Courses Agency | |
| | Insurance & Claims | |
| | LGBTQIA+ Commission | The LGBTQIA+ Commission replaced the LGBTQ+ Advisory Committee in February, 2021. |
| | Long Hill Estate Authority | |
| | Lower Connecticut River Valley | |
| | Mary Shepherd Home Citizens' Advisory Committee | |
| | Mattabassett District Board | |
| | Mattabassett Regionalization Project Building Committee | |
| | Mayor's Safety Committee | |
| | MGRS | |
| | Middletown High Track/Turf Building Committee | |
| | Middletown Recreation Center Building Committee | |
| | Military Museum Building Committee | |
| | Northern Middlesex County Cable Advisory | |
| | Open Space Preservation | |
| | Parking Advisory Committee | |
| | Planning & Zoning Commission | |
| | Public Safety Commission | |
| | Public Safety Telecommunications Commission | |
| | Public Works & Facilities Commission | |
| | Records Management Commission | |
| | Recreation & Community Services Commission | |
| | Recreation Center Building Committee | |
| | Redevelopment Agency | |
| | Resource Recovery Commission to ECCRA | |
| | Resource Recycling Advisory Council | |
| | Retirement Board | |
| | Riverfront Boathouse Building Committee | |
| | Russell Library / City Hall Feasibility Study Committee | |
| | Russell Library Board of Trustees | |
| | Russell Library Executive Committee | |
| | Russell Library Facilities Committee | |
| | Russell Library Finance Committee | |
| | Russell Library Governance Committee | |
| | Russell Library Strategic Planning Committee | |
| | Sanitary Disposal District Commission | |
| | School Readiness Council | |
| | Snow School Roof Building Committee | |
| | South Fire District Building Committee | |
| | Standardization and Specifications Committee | |
| | Sustainable CT Sustainability Team | |
| | Technology Advisory Committee | |
| | Urban Forestry Commission | |
| | Veterans Park Pool and Splash Building Committee | |
| | Walter C. Jones Fund | |
| | Water Pollution Control Authority | |
| | Westfield Fire District | |
| | Woodrow Wilson Building Committee | |
| | Youth Service Bureau Advisory Board | |
| | Zoning Board of Appeals | |