| Business | Phone |
| Deborah Savage Railey Realty 24586 Garrett Hwy, McHenry 21541 | (301) 387-4402 |
| Deep Creek Realty 24439 Garrett Hwy # 100, McHenry 21541 | (301) 387-5303 |
| Long & Foster Real Estate Inc 23789 Garrett Hwy, McHenry 21541 | (301) 387-9500 |
| Long & Foster Realtors 23789 Garrett Hwy, McHenry 21541 | (301) 387-4700 |
| Mountain Properties 25254 Garrett Hwy, McHenry 21541 | (301) 387-8300 |
| Railey Mountain Lake Vacations Deep Creek Lake, McHenry 21541 | (301) 387-2124 |
| Railey Realty 2 Vacation Way, McHenry 21541 | (301) 387-2000 |
| Charles G Railey 82 Landmark Dr, McHenry 21541 | (301) 387-9577 |
| Randall H Hagner & Co Po Box 100, McHenry 21541 | (301) 387-9508 |
| Stony Brook Properties 26017 Garrett Hwy, McHenry 21541 | (301) 387-8460 |
| T W Tower Agency 751 Glendale Rd, McHenry 21541 | (301) 387-5132 |