| 1 | VLTO | Veralto Corporation | 24.87B | 3.37% | 1,189,753 | 5.28B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 6.26B | 5.68% | 1,238,739 | 1.58B |
| 3 | FSS | Federal Signal Corporation | 5.68B | 4.54% | 459,800 | 1.90B |
| 4 | ATMU | Atmus Filtration Technologies Inc. | 3.15B | 5.18% | 805,220 | 1.66B |
| 5 | PCT | PureCycle Technologies, Inc. | 1.46B | 11.52% | 5,003,974 | 1.58M |
| 6 | CECO | CECO Environmental Corp. | 905.33M | 2.64% | 175,471 | 608.30M |
| 7 | ERII | Energy Recovery, Inc. | 667.07M | 7.65% | 871,169 | 140.92M |
| 8 | ADUR | Aduro Clean Technologies Inc. | 182.80M | -0.16% | 243,580 | 179.33K |
| 9 | ARQ | Arq, Inc. | 175.18M | 6.41% | 188,900 | 114.47M |
| 10 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 59.35M | 13.38% | 151,512 | - |
| 11 | SCWO | 374Water Inc. | 45.72M | -7.06% | 270,642 | 445.45K |
| 12 | DEVS | DevvStream Corp. | 39.45M | 290.93% | 267,722,312 | - |
| 13 | CLIR | ClearSign Technologies Corporation | 30.01M | 5.08% | 52,607 | 3.60M |
| 14 | FTEK | Fuel Tech, Inc. | 29.39M | -1.34% | 55,481 | 25.13M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 17.01M | -0.62% | 14,550 | 8.20M |
| 16 | ZONE | CleanCore Solutions, Inc. | 15.40M | 21.05% | 131,644 | 1.64M |
| 17 | LIQT | LiqTech International, Inc. | 13.83M | 2.13% | 2,245 | 14.60M |
| 18 | CLWT | Euro Tech Holdings Company Limited | 10.28M | 22.74% | 201,634 | 15.38M |
| 19 | CHNR | China Natural Resources, Inc. | 5.52M | -0.25% | 452,217 | - |