| Finance & Administration | Finance & Administration | 301-258-6320 | finance@gaithersburgmd.gov |
| Financial Empowerment Center | Community, Neighborhood & Housing Services | 240-454-5199 | fec@gaithersburgmd.gov |
| Fire Marshal | Planning & Code Administration | 301-258-6330 | FireMarshal@gaithersburgmd.gov |
| Gaithersburg Cares Hub | Community, Neighborhood & Housing Services | 240-229-9642 | |
| Gaithersburg Community Museum | Parks, Recreation & Culture | 301-258-6160 | museum@gaithersburgmd.gov |
| Gaithersburg Parks, Arts & Recreation Corporation | Parks, Recreation & Culture | 301-258-6350 | GPARC@gaithersburgmd.gov |
| Gaithersburg Police Department | Police Department | 301-258-6400 | police@gaithersburgmd.gov |
| Gaithersburg Police Department Tip Line | Police Department | 301-330-4471 | |
| Gaithersburg Police Foundation | Police Department | | gaithersburgpf@gmail.com |
| GIS | Information Technology | 301-258-6325 | gis@gaithersburgmd.gov |
| Grants | Community, Neighborhood & Housing Services | 240-805-1827 | grants@gaithersburgmd.gov |
| Homeless Services | Community, Neighborhood & Housing Services | 301-258-6390 | wellsrob@gaithersburgmd.gov |
| Housing & Community Development | Community, Neighborhood & Housing Services | 240-805-1119 | housing@gaithersburgmd.gov |
| Human Resources | Human Resources | 301-258-6327 | hr@gaithersburgmd.gov |
| Information Technology | Information Technology | 301-258-6325 | it@gaithersburgmd.gov |
| International Latitude Observatory | Parks, Recreation & Culture | 301-258-6160 | museum@gaithersburgmd.gov |
| Kentlands Mansion | Parks, Recreation & Culture | 301-258-6425 | kentlands@gaithersburgmd.gov |
| Legislative Affairs | City Manager's Office | 301-258-6310 | cityhall@gaithersburgmd.gov |
| Miniature Golf Course | Parks, Recreation & Culture | 301-258-6350 | minigolf@gaithersburgmd.gov |
| Multicultural Affairs Committee | Parks, Recreation & Culture | 301-258-6350 | mac@gaithersburgmd.gov |