| 1 | VLTO | Veralto Corporation | 25.40B | - | 616,665 | 5.45B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.02B | - | 262,034 | 1.66B |
| 3 | FSS | Federal Signal Corporation | 6.94B | - | 211,750 | 2.06B |
| 4 | CECO | CECO Environmental Corp. | 2.23B | 3.05% | 244,543 | 718.25M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.67B | - | 1,138,721 | 5.66M |
| 6 | ERII | Energy Recovery, Inc. | 733.13M | - | 152,260 | 135.19M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 344.60M | - | 285,242 | 160.66K |
| 8 | ARQ | Arq, Inc. | 146.01M | 4.27% | 167,619 | 117.95M |
| 9 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 54.56M | -0.01% | 41,029 | - |
| 10 | ZONE | CleanCore Solutions, Inc. | 53.00M | -4.18% | 1,590,922 | 2.61M |
| 11 | FTEK | Fuel Tech, Inc. | 50.96M | 1.86% | 83,158 | 24.71M |
| 12 | CLIR | ClearSign Technologies Corporation | 32.42M | -2.87% | 21,393 | 2.15M |
| 13 | TOMZ | TOMI Environmental Solutions, Inc. | 15.94M | - | 3,163 | 5.69M |
| 14 | LIQT | LiqTech International, Inc. | 15.40M | - | 35,123 | 16.79M |
| 15 | CLWT | Euro Tech Holdings Company Limited | 9.37M | 0.15% | 2,780 | 15.38M |
| 16 | DEVS | DevvStream Corp. | 5.78M | - | 17,823 | 26.89K |
| 17 | SCWO | 374Water Inc. | 3.89M | - | 83,386 | 1.91M |
