| Business | Phone |
| Bonar Group 6420 Castleway West Dr, Indianapolis 46250 | (317) 570-6800 |
| Christopher B Burke Engrg Ltd 115 W Washington St # 1368, Indianapolis 46204 | (317) 266-8000 |
| Civil Designs 2415 Directors Row # E, Indianapolis 46241 | (317) 244-1968 |
| Grid Engineering Inc 8320 W 87th St, Indianapolis 46278 | (317) 293-0340 |
| Witsman Engineering 5913 Bowie Ln, Indianapolis 46254 | (317) 329-6835 |
| V S Engineering Inc 4275 N High School Rd, Indianapolis 46254 | (317) 293-3542 |
| Transportation Consulting 550 Virginia Ave, Indianapolis 46203 | (317) 822-6269 |
| Strand Associates Inc 450 E 96th St # 500, Indianapolis 46240 | (317) 423-0935 |
| Roger Ward Engineering Inc 5420 N College Ave # 202, Indianapolis 46220 | (317) 251-1738 |
| Melton-Packard & Assoc Inc 8444 Castlewood Dr, Indianapolis 46250 | (317) 577-0069 |