| Company | Category | Area | Address | Web | Contact person | |
| 2018 LINNEMAN DEVELOPMENT LLC | Subdivider/developer | Illinois | 2728 WOODLAND RD, EVANSTON, Cook, Illinois, 60201-2034, USA | - | - | Richard Cohen |
| 2018 WALL STREET LTD | real estate agent/manager | Texas | 3211 TREVOLLE PL, DALLAS, Dallas, Texas, 75204-5538, USA | - | - | Charles Smith |
| 20180 GOVERNORS OFFICE | Offic Bldg Oper | Illinois | 20180 GOVERNORS HWY, OLYMPIA FLDS, Cook, Illinois, 60461-1027, USA | - | - | - |
