| Business | Phone |
| Bolton & Menk Inc 2730 Ford St, Ames 50010 | (515) 233-6100 |
| Curry-Wille & Assoc Consulting 425 S 2nd St, Ames 50010 | (515) 232-9078 |
| J Corp Inc 120 Hayward Ave, Ames 50014 | (515) 597-5457 |
| J L Hall Engineering Svc 403 Whitney Ave, Ames 50010 | (515) 233-6049 |
| Johnson Engineering 221 Trailridge Rd, Ames 50014 | (515) 292-5123 |
| Popp Engineering Inc 2710 Ford St, Ames 50010 | (515) 232-6118 |
| Terracon Consultants Inc 1421 S Bell Ave, Ames 50010 | (515) 232-0950 |
| Wandling Engineering 923 N 2nd St, Ames 50010 | (515) 232-0158 |
| Whks & Co 1421 S Bell Ave 103, Ames 50010 | (515) 663-9997 |