| Business | Phone |
| C & K Professional Realty Corp 200 Nippersink Ave, Round Lake 60073 | (847) 546-7117 |
| Caudle Treadway Ltd 657 Ottawa Dr, Round Lake 60073 | (847) 740-1114 |
| Century 21 514 N Cedar Lake Rd, Round Lake 60073 | (847) 223-8151 |
| Century 21 625 W Rollins Rd, Round Lake 60073 | (847) 546-7300 |
| Corporate Real Estate Svc 26575 W Commerce Dr, Round Lake 60073 | (847) 740-1830 |
| Real Estate Connections 107 E Main St, Round Lake 60073 | (847) 740-2066 |
| Real Estate Specialities Sales Round Lake 60073 | (847) 740-6928 |
| Remington Homes Brooks Farm 25968 W Steeplebush Ln, Round Lake 60073 | (847) 546-6300 |
| Pma Realty 223 W Washington St, Round Lake 60073 | (847) 546-2255 |
| New Century Real Estate 1919 Il Route 83, Round Lake 60073 | (847) 543-8300 |