| 1 | VLTO | Veralto Corporation | 21.86B | -0.76% | 1,543,691 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.76B | 9.47% | 2,583,278 | 1.74B |
| 3 | FSS | Federal Signal Corporation | 6.94B | 0.45% | 254,041 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.28B | 3.84% | 528,719 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.30B | 7.32% | 3,438,101 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 571.08M | 4.24% | 1,302,357 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 404.65M | 7.55% | 440,441 | 177.37K |
| 8 | ARQ | Arq, Inc. | 95.55M | 0.45% | 260,271 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 65.08M | 0.39% | 605,115 | 3.42M |
| 10 | SCWO | 374Water Inc. | 53.20M | -2.24% | 36,673 | 215.04K |
| 11 | FTEK | Fuel Tech, Inc. | 42.06M | -1.46% | 135,514 | 26.68M |
| 12 | BCHT | Birchtech Corp. | 39.72M | -1.95% | 89,904 | 17.63M |
| 13 | CLIR | ClearSign Technologies Corporation | 30.23M | 3.52% | 12,982 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 22.28M | -6.67% | 31,079 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 20.80M | 3.25% | 6,150 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 11.34M | 1.18% | 8,784,459 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.58M | 0.40% | 1,006 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 2.36M | -18.79% | 420,518 | 33.94K |
