| 1 | VLTO | Veralto Corporation | 20.37B | -1.27% | 3,905,256 | 5.59B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.28B | -0.68% | 442,383 | 1.74B |
| 3 | CECO | CECO Environmental Corp. | 5.82B | 1.29% | 941,995 | 803.60M |
| 4 | PCT | PureCycle Technologies, Inc. | 1.51B | -4.14% | 4,673,971 | 10.90M |
| 5 | ADUR | Aduro Clean Technologies Inc. | 505.89M | -2.98% | 432,315 | 177.37K |
| 6 | ERII | Energy Recovery, Inc. | 458.75M | -5.52% | 1,274,138 | 136.63M |
| 7 | ZONE | CleanCore Solutions, Inc. | 220.47M | 0.91% | 4,851,155 | 3.41M |
| 8 | ARQ | Arq, Inc. | 110.75M | -9.15% | 301,705 | 122.14M |
| 9 | FTEK | Fuel Tech, Inc. | 62.02M | 29.22% | 7,685,638 | 26.38M |
| 10 | BCHT | Birchtech Corp. | 54.45M | -11.54% | 148,428 | 18.65M |
| 11 | SCWO | 374Water Inc. | 37.24M | -5.11% | 62,420 | 223.09K |
| 12 | LIQT | LiqTech International, Inc. | 27.11M | 0.59% | 136,195 | 16.03M |
| 13 | CLIR | ClearSign Technologies Corporation | 20.35M | -0.79% | 19,041 | 5.02M |
| 14 | TOMZ | TOMI Environmental Solutions, Inc. | 15.31M | -6.67% | 75,610 | 5.71M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 15.23M | -9.71% | 54,077 | 10.50K |
| 16 | CLWT | Euro Tech Holdings Company Limited | 13.49M | -4.71% | 319,512 | 13.27M |
| 17 | DEVS | DevvStream Corp. | 7.62M | -5.44% | 900,144 | 24.49K |
