| Company | Category | Area | Address | Web | E-mail | Contact person |
| HYDROGAS PROPANE | Gas-Liquefied Petro-Bttld/Bulk | Texas | 1742 W STATE HIGHWAY 29, BURNET, Burnet, Texas, 78611-2321, USA |
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Howard Benton |
| HYDROGAS PROPANE | Gas-Liquefied Petro-Bttld/Bulk | Texas | 1742 W STATE HIGHWAY 29, BURNET, Burnet, Texas, 78611-2321, USA |
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Howard Benton |
| HYDROGEN GENERATION INC | Unclassified | Texas | 700 E POLK ST # 29, BURNET, Burnet, Texas, 78611-2627, USA |
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| HYDROGEN GENERATION INC | Unclassified | Texas | 700 E POLK ST # 29, BURNET, Burnet, Texas, 78611-2627, USA |
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| HYDROGEN HOMESTEAD | mfg industrial gases | Texas | 2733 FOREST AVE, FORT WORTH, Tarrant, Texas, 76112-6604, USA |
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Paul Smith |
| HYDROGEOLOGIC | Engineers-Professional | Texas | 1777 NE LOOP 410, SAN ANTONIO, Bexar, Texas, 78217-5209, USA |
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| HYDROGEOLOGIC INC | Engineers-Professional | Texas | 12343 HYMEADOW DR STE 3B, AUSTIN, Travis, Texas, 78750-1858, USA |
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Steve Young |
| HYDROGEOLOGIC INC | Engineers-Professional | Texas | 12343 HYMEADOW DR STE 3B, AUSTIN, Travis, Texas, 78750-1858, USA |
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Steve Young |
| HYDROGEOLOGIC/ENGINEERING-TX | Geological Consultants | Texas | 2420 CHURCH ST, GALVESTON, Galveston, Texas, 77550-1917, USA |
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Stephan Stamoulis |
| HYDROGRAPHIC CONSULTANTS LTD | hydrographic and geophysical s | Texas | PO BOX 1448, BELLAIRE, Harris, Texas, 77402-1448, USA |
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Robert Roman |
