| Business | Phone |
| A Ok Cleaning Svc Inc 330 N Stonestreet Ave # E, Rockville 20850 | (301) 294-3622 |
| Building Maintenance System 51 Monroe St # 805, Rockville 20850 | (301) 838-2225 |
| Sam Facilities Maintenance Inc 4301 Muncaster Mill Rd, Rockville 20853 | (301) 924-2692 |
| Rowser Office Maintenance 13724 Woodlark Dr, Rockville 20853 | (301) 460-9171 |