| Business | Phone |
| Engineering Consultants Inc 101 Parkwood St, Lowell 72745 | (479) 770-5366 |
| Henderson Engineers 125 Parkwood St, Lowell 72745 | (479) 770-0021 |
| Montgomery Watson Harza 301 N Primrose Rd, Lowell 72745 | (479) 872-8210 |
| Morrison Shipley Engineers 213 W Monroe Ave, Lowell 72745 | (479) 273-2209 |
| Joseph Looney & Assoc 213 W Monroe Ave # J, Lowell 72745 | (479) 770-6650 |