| Business | Phone |
| Cri Boiler Sales & Svc 3910 S 5th St, Louisville 40214 | (502) 366-4406 |
| J H Ballenger Co 3231 Ruckriegel Pkwy 109, Louisville 40299 | (502) 266-9050 |
| Truman Monroe Inc 2821 S Hurstbourne Pkwy, Louisville 40220 | (502) 493-0662 |
| Vogt Power Intl 4000 Dupont Cir, Louisville 40207 | (502) 899-4500 |