| Business | Phone |
| B G Consultants Inc 1405 Wakarusa Dr, Lawrence 66049 | (785) 749-4474 |
| Bartlett & West Engineers Inc 628 Vermont St, Lawrence 66044 | (785) 749-9452 |
| Peridian Group 500 Rockledge Rd # A, Lawrence 66049 | (785) 838-3338 |
| Landplan Engineering 1310 Wakarusa Dr # 100, Lawrence 66049 | (785) 843-7530 |