| 1 | VLTO | Veralto Corporation | 22.23B | -1.93% | 1,631,986 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.79B | -1.86% | 1,288,460 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 6.72B | -2.42% | 474,620 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.28B | -1.04% | 272,050 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.23B | 1.94% | 2,589,291 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 552.06M | -1.60% | 784,327 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 388.17M | 5.23% | 289,534 | 177.37K |
| 8 | ARQ | Arq, Inc. | 97.27M | -3.81% | 414,349 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 68.24M | -1.49% | 3,206,590 | 3.42M |
| 10 | SCWO | 374Water Inc. | 57.38M | -3.52% | 33,012 | 215.04K |
| 11 | BCHT | Birchtech Corp. | 44.19M | -7.69% | 126,361 | 17.63M |
| 12 | FTEK | Fuel Tech, Inc. | 41.46M | -2.17% | 34,563 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 28.83M | -8.73% | 17,537 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 18.80M | 2.16% | 2,337 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 17.30M | -9.88% | 17,772 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 12.05M | 1.26% | 14,419 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.64M | -0.21% | 9,668 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 3.69M | -8.93% | 318,386 | 33.94K |
