| Company | Country | Type | Model | Capacity [Nm3/hr] | H2 Output Pressure [barg] | H2 Purity [%] | Electrical Consumption [kWh/kgH2] | HHV Efficiency [%] |
| Acta | Italy | AEM | EL1000 | 1 | 29 | 99.94 | 53.2 | 74.0% |
| AREVA H2 Gen | France | PEM | E120 | 120 | 35 | 99.999 | 53.8 | 73.2% |
| Erredue | Italy | Alkaline | G256 | 170 | 30 | 99.5 | 59.5 | 66.2% |
| H-TEC SYSTEMS | Germany | PEM | EL30/144 | 3.6 | 29 | N/A | 55.4 | 71.1% |
| Hydrogenics | Belgium, Canada | Alkaline (PEM in dev.) | HyStat60 | 60 | 10 | 99.998 | 58.2 | 67.7% |
| Idroenergy | Italy | Alkaline | Model120 | 80 | 5 | 99.5 | 62.7 | 62.8% |
| ITM Power | UK | PEM (AEM in dev.) | HGas1000 | 132 (Peak: 462) | 19 (Opt. 79) | 99.999 | N/A | N/A |
| NEL Hydrogen | Norway | Alkaline | A485 | 485 | Atm. | >99.9 | 42.5 - 49.3 | 79.9% - 92.6% |
| McPhy | France | Alkaline | McLyzer | 60 | 12 | >99.5 | 57.8 | 68.1% |
| Proton OnSite | USA | PEM | Hogen C30 | 30 | 30 | 99.9998 | 65.0 | 60.6% |
| Siemens | Germany | PEM | SILYZER200 | 225 | 34 | 99.5 | N/A | 65% - 70% |
| Teledyne Energy System | USA | Alkaline | EL-N | 500 | 9 | 99.999 | N/A | N/A |
| Wasserelektrolyse Hydrotechnik | Germany | Alkaline | EV150 | 220 | Atm. | 99.9 | 59.1 | 66.6% |