| 1 | VLTO | Veralto Corporation | 24.35B | -0.72% | 1,698,914 | 5.45B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.51B | -2.67% | 702,306 | 1.66B |
| 3 | FSS | Federal Signal Corporation | 6.51B | -2.44% | 284,017 | 2.06B |
| 4 | CECO | CECO Environmental Corp. | 1.69B | -4.18% | 500,085 | 718.25M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.54B | -7.29% | 3,545,169 | 5.66M |
| 6 | ERII | Energy Recovery, Inc. | 768.10M | -0.34% | 715,234 | 135.19M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 327.77M | -5.81% | 147,395 | 160.66K |
| 8 | ARQ | Arq, Inc. | 149.86M | -0.57% | 722,889 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 67.35M | -6.98% | 5,584,093 | 2.61M |
| 10 | FTEK | Fuel Tech, Inc. | 55.62M | -2.72% | 228,366 | 24.71M |
| 11 | CLIR | ClearSign Technologies Corporation | 43.69M | -5.47% | 112,949 | 2.15M |
| 12 | SCWO | 374Water Inc. | 43.26M | -8.71% | 2,173,455 | 1.91M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 41.04M | -12.74% | 55,617 | - |
| 14 | LIQT | LiqTech International, Inc. | 18.36M | -5.68% | 28,792 | 16.79M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 15.06M | -8.59% | 82,124 | 5.69M |
| 16 | CLWT | Euro Tech Holdings Company Limited | 8.99M | 6.31% | 16,776 | 15.38M |
| 17 | DEVS | DevvStream Corp. | 6.61M | 4.24% | 13,761 | 25.79K |
