| 1 | VLTO | Veralto Corporation | 21.80B | -0.24% | 1,509,645 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.80B | 0.53% | 1,530,641 | 1.74B |
| 3 | FSS | Federal Signal Corporation | 7.11B | 2.46% | 374,744 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.31B | 1.52% | 430,108 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.31B | 0.70% | 4,469,600 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 581.64M | 1.85% | 830,468 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 395.66M | -1.59% | 280,853 | 177.37K |
| 8 | ARQ | Arq, Inc. | 98.55M | 2.91% | 262,161 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 63.25M | -2.81% | 1,314,156 | 3.42M |
| 10 | SCWO | 374Water Inc. | 50.41M | -5.25% | 77,580 | 215.04K |
| 11 | FTEK | Fuel Tech, Inc. | 41.75M | -0.74% | 47,337 | 26.68M |
| 12 | BCHT | Birchtech Corp. | 39.99M | 0.66% | 119,938 | 17.63M |
| 13 | CLIR | ClearSign Technologies Corporation | 27.91M | -7.69% | 15,246 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 21.19M | -4.91% | 6,120 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 19.24M | -7.48% | 2,236 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 12.32M | 8.66% | 3,273,075 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.43M | -1.57% | 1,089 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 1.82M | -22.85% | 612,883 | 33.94K |
