| 1 | VLTO | Veralto Corporation | 22.04B | 1.99% | 5,675,306 | 5.59B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.49B | -0.82% | 4,411,832 | 1.74B |
| 3 | CECO | CECO Environmental Corp. | 5.37B | -3.39% | 1,877,024 | 803.60M |
| 4 | PCT | PureCycle Technologies, Inc. | 1.55B | -1.39% | 7,679,235 | 10.90M |
| 5 | ADUR | Aduro Clean Technologies Inc. | 544.08M | 5.55% | 605,640 | 177.37K |
| 6 | ERII | Energy Recovery, Inc. | 454.63M | 0.34% | 1,590,587 | 136.63M |
| 7 | ZONE | CleanCore Solutions, Inc. | 166.45M | -7.41% | 2,348,834 | 3.41M |
| 8 | ARQ | Arq, Inc. | 100.45M | 2.63% | 3,317,362 | 122.14M |
| 9 | FTEK | Fuel Tech, Inc. | 67.01M | 12.57% | 564,103 | 26.38M |
| 10 | BCHT | Birchtech Corp. | 52.61M | -1.48% | 175,752 | 18.65M |
| 11 | SCWO | 374Water Inc. | 33.77M | -2.53% | 108,596 | 223.09K |
| 12 | LIQT | LiqTech International, Inc. | 25.76M | -0.21% | 98,365 | 16.03M |
| 13 | CLIR | ClearSign Technologies Corporation | 19.59M | 6.78% | 14,654 | 5.02M |
| 14 | TOMZ | TOMI Environmental Solutions, Inc. | 17.12M | 8.80% | 189,754 | 5.71M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 15.80M | -3.50% | 21,735 | 10.50K |
| 16 | CLWT | Euro Tech Holdings Company Limited | 11.19M | -3.82% | 74,059 | 13.27M |
