| 1 | VLTO | Veralto Corporation | 20.60B | 0.46% | 780,988 | 5.59B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.88B | 0.47% | 221,725 | 1.74B |
| 3 | FSS | Federal Signal Corporation | 6.60B | -4.51% | 262,347 | 2.34B |
| 4 | CECO | CECO Environmental Corp. | 2.74B | -8.25% | 450,125 | 803.60M |
| 5 | PCT | PureCycle Technologies, Inc. | 2.33B | 0.12% | 1,363,481 | 10.90M |
| 6 | ADUR | Aduro Clean Technologies Inc. | 569.49M | 0.24% | 297,902 | 177.37K |
| 7 | ERII | Energy Recovery, Inc. | 422.41M | -5.04% | 191,967 | 136.63M |
| 8 | ZONE | CleanCore Solutions, Inc. | 174.95M | -0.11% | 967,530 | 3.41M |
| 9 | ARQ | Arq, Inc. | 119.33M | 1.09% | 99,206 | 122.14M |
| 10 | FTEK | Fuel Tech, Inc. | 46.44M | -1.32% | 111,334 | 26.38M |
| 11 | BCHT | Birchtech Corp. | 44.93M | -5.11% | 33,691 | 17.63M |
| 12 | SCWO | 374Water Inc. | 44.30M | -3.05% | 30,885 | 223.09K |
| 13 | CLIR | ClearSign Technologies Corporation | 23.60M | -4.39% | 33,818 | 5.02M |
| 14 | TOMZ | TOMI Environmental Solutions, Inc. | 18.96M | 0.21% | 97,239 | 5.71M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 17.20M | -5.83% | 2,471 | 10.50K |
| 16 | LIQT | LiqTech International, Inc. | 10.89M | 0.46% | 20,306 | 16.03M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.36M | -3.88% | 339 | 13.27M |
| 18 | DEVS | DevvStream Corp. | 1.30M | 94.80% | 419,522,762 | 33.94K |
