| Business | Phone |
| Weiskirch & Parks Engrs Inc 111 N Main St # 10, Independence 64050 | (816) 254-5000 |
| Byam Engineering 3501 S Sterling Ave # G, Independence 64052 | (816) 252-3519 |
| Crowley Wade Milstead Inc 3200 S Highway 291, Independence 64057 | (816) 373-4800 |
| Harvey A Jones Engineering Co 908 N Osage St, Independence 64050 | (816) 836-4220 |