| 1 | VLTO | Veralto Corporation | 24.19B | 0.20% | 718,267 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.50B | -0.02% | 333,781 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 7.36B | 3.77% | 188,185 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.12B | -1.62% | 673,912 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.18B | 3.65% | 5,127,432 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 537.80M | -2.40% | 580,975 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 364.50M | 1.57% | 141,226 | 218.51K |
| 8 | ARQ | Arq, Inc. | 149.86M | - | 98,459 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 69.82M | -2.33% | 1,067,888 | 3.42M |
| 10 | BCHT | Birchtech Corp. | 59.64M | -1.69% | 129,840 | 19.40M |
| 11 | FTEK | Fuel Tech, Inc. | 47.23M | 7.04% | 164,161 | 24.71M |
| 12 | SCWO | 374Water Inc. | 47.05M | 7.33% | 38,233 | 1.91M |
| 13 | CLIR | ClearSign Technologies Corporation | 30.29M | 0.59% | 46,127 | 2.15M |
| 14 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 19.84M | 1.75% | 8,268 | - |
| 15 | LIQT | LiqTech International, Inc. | 17.36M | -12.31% | 12,870 | 16.51M |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 13.15M | -5.80% | 116,264 | 5.69M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.21M | 0.83% | 259 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 3.46M | -8.45% | 21,110 | 26.89K |
