| Business | Phone |
| Butler International Inc 214 Farabee Dr N, Lafayette 47905 | (765) 446-1993 |
| James E Etzel 710 Cardinal Dr, Lafayette 47909 | (765) 538-2767 |
| Fleet Engineers Inc 2532 W 450 S, Lafayette 47909 | (765) 477-9953 |
| Tricad Engineering Inc 22 Executive Dr, Lafayette 47905 | (765) 448-4755 |