| 1 | VLTO | Veralto Corporation | 22.67B | -0.08% | 1,562,723 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.94B | -3.97% | 936,222 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 6.89B | -3.47% | 550,518 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.31B | -2.01% | 270,186 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.21B | -0.59% | 3,033,223 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 561.04M | -5.93% | 929,370 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 373.17M | -1.00% | 221,325 | 177.37K |
| 8 | ARQ | Arq, Inc. | 101.12M | 5.36% | 376,606 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 69.27M | -3.32% | 1,623,864 | 3.42M |
| 10 | SCWO | 374Water Inc. | 59.74M | 3.79% | 53,295 | 215.04K |
| 11 | BCHT | Birchtech Corp. | 47.88M | 1.11% | 84,342 | 17.63M |
| 12 | FTEK | Fuel Tech, Inc. | 42.38M | 4.55% | 165,581 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 31.59M | 8.55% | 17,537 | 5.23M |
| 14 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 19.19M | 13.45% | 18,293 | - |
| 15 | LIQT | LiqTech International, Inc. | 18.43M | -0.39% | 21,746 | 16.51M |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 11.90M | -0.02% | 10,280 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.32M | -3.52% | 322 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 4.05M | -1.43% | 382,056 | 33.94K |
