| 1 | VLTO | Veralto Corporation | 21.98B | -0.13% | 1,757,130 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.00B | -0.77% | 609,044 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 7.01B | 0.25% | 253,148 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.29B | -1.20% | 366,814 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.07B | 8.99% | 3,442,308 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 586.93M | 0.45% | 381,127 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 344.44M | 0.58% | 203,791 | 218.51K |
| 8 | ARQ | Arq, Inc. | 92.98M | 2.36% | 456,547 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 69.48M | -2.11% | 786,027 | 3.42M |
| 10 | SCWO | 374Water Inc. | 54.24M | 3.67% | 50,761 | 215.04K |
| 11 | BCHT | Birchtech Corp. | 43.67M | -4.60% | 243,272 | 17.63M |
| 12 | FTEK | Fuel Tech, Inc. | 39.00M | -2.31% | 59,953 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 28.61M | -14.40% | 132,356 | 5.23M |
| 14 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 17.45M | -1.71% | 37,541 | - |
| 15 | LIQT | LiqTech International, Inc. | 17.21M | -4.95% | 18,798 | 16.51M |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 11.91M | 1.97% | 5,795 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.32M | - | 623 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 3.39M | 2.44% | 125,445 | 33.94K |
