| Business | Phone |
| Apel Intl Inc 11201 Ampere Ct, Louisville 40299 | (502) 493-9099 |
| Bender's Inc 219 Tucker Station Rd, Louisville 40243 | (502) 245-6173 |
| Cardinal Air Filter Svc 6835 Green Meadow Cir, Louisville 40207 | (502) 897-9837 |
| Casco 7405 Stone Bluff Ct, Louisville 40291 | (502) 499-2450 |
| Airguard 2501 Ampere Dr, Louisville 40299 | (502) 267-0355 |
| Eco Environmental Filtration 3721 Collins Ln, Louisville 40245 | (502) 267-1807 |
| Gas Turbine Systems 303 Ash Run Rd, Louisville 40245 | (502) 254-1956 |
| Universal Air Products Inc 1809 Taylor Ave, Louisville 40213 | (502) 451-1825 |