| 1 | VLTO | Veralto Corporation | 24.27B | -0.16% | 1,540,265 | 5.45B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.95B | -1.21% | 899,413 | 1.66B |
| 3 | FSS | Federal Signal Corporation | 6.76B | 0.62% | 381,259 | 2.06B |
| 4 | CECO | CECO Environmental Corp. | 1.85B | -3.60% | 387,564 | 718.25M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.73B | -2.93% | 5,827,077 | 5.66M |
| 6 | ERII | Energy Recovery, Inc. | 755.38M | 1.49% | 819,764 | 135.19M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 367.55M | 1.37% | 176,328 | 160.66K |
| 8 | ARQ | Arq, Inc. | 157.97M | 6.63% | 862,658 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 86.10M | -8.80% | 10,164,280 | 2.07M |
| 10 | FTEK | Fuel Tech, Inc. | 61.22M | -4.83% | 238,763 | 24.71M |
| 11 | SCWO | 374Water Inc. | 54.37M | -5.44% | 2,772,649 | 1.23M |
| 12 | CLIR | ClearSign Technologies Corporation | 43.57M | -3.27% | 75,331 | 2.98M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 39.83M | -3.49% | 122,224 | - |
| 14 | LIQT | LiqTech International, Inc. | 21.05M | -4.37% | 4,790 | 15.46M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 16.86M | -5.07% | 14,558 | 6.22M |
| 16 | CLWT | Euro Tech Holdings Company Limited | 8.61M | -3.00% | 18,845 | 15.38M |
| 17 | DEVS | DevvStream Corp. | 6.80M | -3.28% | 17,774 | 25.79K |
