| Business | Phone |
| A & B Valve & Piping Systems 449 Montgomery St, Shreveport 71107 | (318) 226-2650 |
| Frederic Harris & Co Inc 1550 W Kirby Pl, Shreveport 71103 | (318) 635-5455 |
| Gallmann Co 900 Pierremont Rd 110, Shreveport 71106 | (318) 868-0027 |
| Inferno Manufacturing Corp 115 Ricou St, Shreveport 71107 | (318) 221-8454 |