| Gaithersburg Cares Hub | Community, Neighborhood & Housing Services | 240-229-9642 | |
| Gaithersburg Police Department Tip Line | Police Department | 301-330-4471 | |
| Animal Services | Police Department | 301-258-6400 | animalcontrol@gaithersburgmd.gov |
| Aquatic Center | Parks, Recreation & Culture | 301-258-6445 | aquatics@gaithersburgmd.gov |
| Aquatics | Parks, Recreation & Culture | 301-258-6345 | aquatics@gaithersburgmd.gov |
| Art Galleries | Parks, Recreation & Culture | 301-258-6394 | artgalleries@gaithersburgmd.gov |
| Arts Barn | Parks, Recreation & Culture | 301-258-6394 | artsbarn@gaithersburgmd.gov |
| Elementary After School Program | Parks, Recreation & Culture | 301-258-6350 | asp@gaithersburgmd.gov |
| Senior Services | Parks, Recreation & Culture | 301-258-6380 | benjamingaithercenter@gaithersburgmd.gov |
| Benjamin Gaither Center | Parks, Recreation & Culture | 301-258-6380 | benjamingaithercenter@gaithersburgmd.gov |
| Bulk Pickup | Public Works | 301-258-6370 | bulkpickup@gaithersburgmd.gov |
| Casey Community Center | Parks, Recreation & Culture | 301-258-6366 | caseycomm@gaithersburgmd.gov |
| City Clerk’s Office | City Manager's Office | 240-805-1084 | cityclerk@gaithersburgmd.gov |
| Elections - City Clerk’s Office | City Manager's Office | 240-805-1084 | cityelections@gaithersburgmd.gov |
| Office of the City Attorney | Office of the City Attorney | 240-805-1010 | cityhall@gaithersburgmd.gov |
| Office of the City Manager | City Manager's Office | 301-258-6310 | cityhall@gaithersburgmd.gov |
| Legislative Affairs | City Manager's Office | 301-258-6310 | cityhall@gaithersburgmd.gov |
| Parking Garage | City Manager's Office | 301-258-6300 | cityhall@gaithersburgmd.gov |
| 16 South Summit Avenue | City Manager's Office, Police Department | 301-258-6300 | cityhall@gaithersburgmd.gov |
| Arts Barn City Shop | Parks, Recreation & Culture | 301-258-6394 | cityshop@gaithersburgmd.gov |