| Business | Phone |
| Luwa Mechanical Systems 9900 Brookford St, Charlotte 28273 | (704) 583-4940 |
| Trane Commercial Systems 4500 Morris Field Dr, Charlotte 28208 | (704) 398-4600 |
| Suppliers To Wholesalers Inc 2414 N Brevard St, Charlotte 28205 | (704) 375-7406 |
| Cooling Technology Inc 1800 Orr Industrial Ct, Charlotte 28213 | (704) 596-4109 |