| Business | Phone |
| Astoria Hill Condominium 13201 Astoria Hill Ct, Germantown 20874 | (301) 515-6839 |
| Riverstone Condominium Inc 13111 Millhaven Pl, Germantown 20874 | (301) 515-4386 |
| Riverstone Condominium Inc 13205 Cloppers Mill Dr, Germantown 20874 | (301) 916-5931 |
| Condominium Management Inc 12000 Amber Ridge Cir, Germantown 20876 | (301) 540-7699 |
| Farmingdale Condominium Inc 18211 Chalet Dr, Germantown 20874 | (301) 540-9057 |
| Greenfields At Brandermill 11315 Appledowre Way, Germantown 20876 | (301) 384-7000 |
| Harmony Woods Condo 18715 Harmony Woods Ln, Germantown 20874 | (301) 515-3110 |
| Heritage Green Condominium 13201 Dairymaid Dr, Germantown 20874 | (301) 972-9899 |