| 1 | VLTO | Veralto Corporation | 21.34B | -1.42% | 1,561,159 | 5.59B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.54B | 0.89% | 617,069 | 1.74B |
| 3 | FSS | Federal Signal Corporation | 7.60B | 2.56% | 499,266 | 2.34B |
| 4 | CECO | CECO Environmental Corp. | 3.09B | -1.74% | 1,102,902 | 803.60M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.38B | -0.39% | 3,782,264 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 613.34M | 2.65% | 602,811 | 136.63M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 474.14M | 1.78% | 191,124 | 177.37K |
| 8 | ARQ | Arq, Inc. | 98.98M | -2.53% | 544,010 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 70.64M | 4.22% | 2,384,293 | 3.42M |
| 10 | FTEK | Fuel Tech, Inc. | 43.00M | -13.21% | 565,109 | 26.38M |
| 11 | SCWO | 374Water Inc. | 41.16M | 6.31% | 52,645 | 215.04K |
| 12 | BCHT | Birchtech Corp. | 39.72M | -7.36% | 123,450 | 17.63M |
| 13 | CLIR | ClearSign Technologies Corporation | 26.66M | 0.38% | 15,731 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 21.49M | 2.86% | 18,145 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 15.40M | -6.47% | 62,011 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 13.50M | -3.92% | 125,915 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.21M | 8.93% | 11,872 | 13.27M |
| 18 | DEVS | DevvStream Corp. | 892.66K | -16.35% | 6,117,745 | 33.94K |
