| 1 | VLTO | Veralto Corporation | 27.24B | 0.86% | 1,211,172 | 5.36B |
| 2 | FSS | Federal Signal Corporation | 7.89B | -0.07% | 473,623 | 1.97B |
| 3 | ZWS | Zurn Elkay Water Solutions Corporation | 7.68B | 1.24% | 974,581 | 1.61B |
| 4 | PCT | PureCycle Technologies, Inc. | 2.44B | 2.18% | 2,742,151 | 3.23M |
| 5 | CECO | CECO Environmental Corp. | 1.63B | -1.92% | 497,304 | 656.17M |
| 6 | ERII | Energy Recovery, Inc. | 777.76M | 2.24% | 481,103 | 141.78M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 373.02M | 3.26% | 188,309 | 179.33K |
| 8 | ARQ | Arq, Inc. | 330.00M | 7.36% | 809,014 | 117.65M |
| 9 | FTEK | Fuel Tech, Inc. | 93.22M | -1.64% | 260,436 | 25.07M |
| 10 | ZONE | CleanCore Solutions, Inc. | 47.97M | - | 5,529 | 1.89M |
| 11 | SCWO | 374Water Inc. | 37.77M | -2.72% | 411,632 | 1.23M |
| 12 | CLIR | ClearSign Technologies Corporation | 30.67M | 10.38% | 62,023 | 2.90M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 26.33M | -0.09% | 1,162 | - |
| 14 | TOMZ | TOMI Environmental Solutions, Inc. | 20.22M | 2.02% | 9,240 | 8.20M |
| 15 | LIQT | LiqTech International, Inc. | 18.56M | -2.03% | 55,125 | 14.99M |
| 16 | DEVS | DevvStream Corp. | 9.31M | -1.50% | 374,609 | 10.16K |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.06M | -3.55% | 4,021 | 15.38M |
| 18 | CHNR | China Natural Resources, Inc. | 4.50M | 5.19% | 54,444 | - |