| Business | Phone |
| Acoustical Material Supply 6545 N Burlington Dr, Houston 77092 | (713) 462-0100 |
| Cci Supply 5511 Broom St, Houston 77091 | (713) 681-6377 |
| International Cellulose Corp 12315 Robin Blvd, Houston 77045 | (713) 433-6701 |
| Mueller Environmental Designs 7607 Wright Rd, Houston 77041 | (713) 465-0995 |