| 1 | VLTO | Veralto Corporation | 24.81B | 0.29% | 1,902,374 | 5.45B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.06B | 2.69% | 754,285 | 1.66B |
| 3 | FSS | Federal Signal Corporation | 6.88B | -0.48% | 397,832 | 2.06B |
| 4 | CECO | CECO Environmental Corp. | 1.98B | 3.49% | 665,964 | 718.25M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.86B | 1.98% | 3,288,298 | 3.23M |
| 6 | ERII | Energy Recovery, Inc. | 918.20M | 5.18% | 520,825 | 135.19M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 411.92M | -5.10% | 147,805 | 160.66K |
| 8 | ARQ | Arq, Inc. | 271.09M | -0.94% | 235,673 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 222.14M | 11.11% | 1,273,614 | 2.07M |
| 10 | FTEK | Fuel Tech, Inc. | 68.36M | -12.70% | 645,636 | 24.71M |
| 11 | SCWO | 374Water Inc. | 65.00M | 11.16% | 2,932,633 | 1.23M |
| 12 | CLIR | ClearSign Technologies Corporation | 48.03M | 5.94% | 164,798 | 2.98M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 38.62M | -0.20% | 7,150 | - |
| 14 | LIQT | LiqTech International, Inc. | 24.30M | 10.38% | 1,365 | 15.46M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 18.27M | -1.09% | 17,010 | 6.22M |
| 16 | CLWT | Euro Tech Holdings Company Limited | 9.10M | 1.27% | 765 | 15.38M |
| 17 | DEVS | DevvStream Corp. | 6.73M | 0.75% | 48,593 | 10.16K |
| 18 | CHNR | China Natural Resources, Inc. | 5.44M | -4.34% | 7,224 | - |
