| Business | Phone |
| Greenbelt Aquatic & Fitness 101 Centerway, Greenbelt 20770 | (301) 397-2204 |
| Greenbelt City Community Ctr 15 Crescent Rd, Greenbelt 20770 | (301) 397-2208 |
| Greenbelt City Finance 25 Crescent Rd, Greenbelt 20770 | (301) 474-1552 |
| Greenbelt City Offices 25 Crescent Rd, Greenbelt 20770 | (301) 474-8000 |
| Greenbelt City-Code Enfrcmnt 15 Crescent Rd # 200, Greenbelt 20770 | (301) 345-5417 |
| Greenbelt Connection 555 Crescent Rd, Greenbelt 20770 | (301) 474-4100 |
| Greenbelt Museum 10 Crescent Rd # B, Greenbelt 20770 | (301) 474-1936 |
| Greenbelt Personnel Office 25 Crescent Rd, Greenbelt 20770 | (301) 345-7203 |