| Symbol | Name | Country | Exchange |
|---|---|---|---|
| AFGYF | AFC ENERGY PLC | US | OTC |
| PCELF | Powercell Sweden Ab | US | OTC |
| TECFF | Teco 2030 ASA | US | OTC |
| AFC | AFC Energy Plc | UK | LSE |
| PPS | Proton Power Systems Plc | UK | LSE |
| 27W | Powercell Sweden | DE | F |
| 033530 | Sejong Industrial | KR | KO |
| 095190 | ENERGY&MACHINERY KOREA Co.Ltd | KR | KQ |
| TECO | Teco 2030 Asa | NO | OL |
| PLUN | Plug Power Inc | DE | XETRA |