| Business | Phone |
| T-Squared Assoc 7800 Kansas Ave, Kansas City 66111 | (913) 299-5090 |
| Taliaferro & Browne Inc 132 Abbie Ave, Kansas City 66103 | (913) 621-1450 |
| Tdc & Assoc 1333 Meadowlark Ln, Kansas City 66102 | (913) 287-1255 |
| Compliance Engineering Inc 1140 Adams St # 120, Kansas City 66103 | (913) 281-2444 |
| S & M Engineering 444 Minnesota Ave, Kansas City 66101 | (913) 621-7273 |
| Fsc Inc 3100 S 24th St # E, Kansas City 66106 | (913) 722-3473 |
| Midwest Controls Inc 1144 Cambridge Cir, Kansas City 66103 | (913) 233-0030 |