| 1 | VLTO | Veralto Corporation | 24.97B | -0.72% | 882,205 | 5.28B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 6.10B | -1.81% | 523,532 | 1.58B |
| 3 | FSS | Federal Signal Corporation | 5.71B | -1.52% | 255,000 | 1.90B |
| 4 | ATMU | Atmus Filtration Technologies Inc. | 3.01B | -1.28% | 906,267 | 1.66B |
| 5 | PCT | PureCycle Technologies, Inc. | 1.84B | -0.97% | 3,910,921 | 1.58M |
| 6 | CECO | CECO Environmental Corp. | 995.61M | -0.81% | 52,314 | 608.30M |
| 7 | ERII | Energy Recovery, Inc. | 674.70M | -1.90% | 447,676 | 140.92M |
| 8 | ADUR | Aduro Clean Technologies Inc. | 244.35M | 3.07% | 92,473 | 179.33K |
| 9 | ARQ | Arq, Inc. | 206.41M | 1.45% | 259,569 | 114.47M |
| 10 | SCWO | 374Water Inc. | 68.72M | 35.99% | 57,923,513 | 673.27K |
| 11 | FTEK | Fuel Tech, Inc. | 53.13M | 13.07% | 297,124 | 26.56M |
| 12 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 33.76M | 1.60% | 11,637 | - |
| 13 | CLIR | ClearSign Technologies Corporation | 31.77M | 6.32% | 50,561 | 2.90M |
| 14 | LIQT | LiqTech International, Inc. | 16.34M | - | 807 | 14.99M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 16.21M | 1.50% | 3,275 | 8.20M |
| 16 | DEVS | DevvStream Corp. | 15.33M | -6.86% | 3,509,734 | - |
| 17 | ZONE | CleanCore Solutions, Inc. | 15.15M | 4.02% | 8,557 | 1.89M |
| 18 | CLWT | Euro Tech Holdings Company Limited | 8.68M | 3.64% | 8,455 | 15.38M |
| 19 | CHNR | China Natural Resources, Inc. | 5.32M | -8.46% | 65,898 | - |