Hydrogen Gas Manufacturers
| Airgas Mid America (Paducah, KY) |
| Airgas Nor Pac Inc (Vancouver, WA) |
| Airgas Norpac (Tualatin, OR) |
| Airgas Oxygen Svc (Macon, GA) |
| Airgas Puritan Medical (Lincoln Park, NJ) |
| Airgas South (Jasper, AL) |
| Airgas South (Orlando, FL) |
| Airgas Southwest (Breckenridge, TX) |
| Airgas Southwest Inc (Corpus Christi, TX) |
| Airgas Specialty Gases (Port Allen, LA) |
| Airgas Specialty Gases (Houston, TX) |
| Airgas Specialty Gases (Chicago, IL) |
| Airgas Specialty Gases (Cheshire, CT) |
| Airgas West (Pacoima, CA) |
| Airgas West (Lynwood, CA) |
| Airgas West (El Monte, CA) |
| Airgases (Fall River, MA) |
| Airgas-Great Lakes Inc (Madison, WI)
Distributor |
| Airgas-Puritan Medical (Houston, TX) |
| Airliquide Corp (Grand Prairie, TX) |
| A-L Compressed Gases Inc (Spokane, WA) |
| Alexander Chemical Corp (La Porte, IN) |
| All American Welding Supply (Plymouth, IN) |
| All State Medical Gases (Manchester, CT) |
| Ameresco Pinebluff Llc (Ball Ground, GA) |
