| Business | Phone |
| Advanced Boiler Controls Inc 3531 Bon Rea Dr, Charlotte 28226 | (704) 578-1816 |
| B Cf Piping Inc 3401 Rotary Dr, Charlotte 28269 | (704) 597-1044 |
| Boilerworks Inc 6020 Mcdaniel Ln # 1620d, Charlotte 28213 | (704) 598-5855 |
| C & C Boiler Sales & Svc Inc 3401 Rotary Dr, Charlotte 28269 | (704) 597-0003 |
| Great Scot Intl Inc 5732 Rebel Dr, Charlotte 28210 | (704) 556-1555 |
| High Temperature Technologies 2175 Dunavant St, Charlotte 28203 | (704) 375-2111 |