| Symbol | Name | Country | Exchange |
|---|---|---|---|
| FCEL | FuelCell Energy, Inc. | US | NASDAQ |
| MNTK | Montauk Renewables, Inc. | US | NASDAQ |
| CXL | Calix Limited | AU | ASX |
| DEL | Delorean Corp Ltd | AU | ASX |
| RNE | Renu Energy Ltd | AU | ASX |
| BLSP | Blue Sphere Corp | US | OTC |
| CHFFY | China Everbright International Ltd | US | OTC |
| EPGRQ | Environmental Pwr Corp | US | OTC |
| GRCO | Greenbelt Resources Corporation | US | OTC |
| GRNWF | Greenlane Renewables Inc | US | OTC |
| HTPRF | Htc Purenergy Inc | US | OTC |
| NNLX | NanoLogix, Inc | US | OTC |
| VSPC | Viaspace Inc | US | OTC |
| XEBEQ | Xedec Adsorption | US | OTC |
| ANRG | Anaergia Inc | CA | TSX |
| BRM | Biorem Inc. | CA | TSXV |
| QST | Questor Technology Inc. | CA | TSXV |
| YES | CHAR Technologies Ltd. | CA | TSXV |
| BIFF | Biffa Plc | UK | LSE |
| OAP3 | Octopus Apollo Vct Plc | UK | LSE |