| Business | Phone |
| Albert Bedinger Consltng Engrs 500 Clyde St, Knoxville 37921 | (865) 637-8339 |
| West Welch Reed Engineers 5417 Ball Camp Pike, Knoxville 37921 | (865) 588-2431 |
| Willis Engineering Corp 7333 Middlebrook Pike, Knoxville 37909 | (865) 691-6929 |
| Applied Engineering Solutions 409 Montbrook Ln, Knoxville 37919 | (865) 531-0126 |
| Robert L Slusher Assoc 4617 Chambliss Ave, Knoxville 37919 | (865) 588-3551 |
| Hodge Engineering Co 1537 Western Ave, Knoxville 37921 | (865) 546-3232 |