| 1 | VLTO | Veralto Corporation | 21.61B | -0.06% | 1,782,553 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.54B | -0.18% | 728,226 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 6.65B | -0.39% | 400,114 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.22B | 1.11% | 305,805 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 979.53M | 6.07% | 5,327,361 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 538.85M | -0.20% | 1,097,771 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 347.09M | 0.58% | 212,589 | 218.51K |
| 8 | ARQ | Arq, Inc. | 105.84M | 4.66% | 1,016,628 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 73.91M | 1.01% | 923,898 | 3.42M |
| 10 | BCHT | Birchtech Corp. | 48.93M | -3.63% | 118,555 | 17.63M |
| 11 | SCWO | 374Water Inc. | 48.91M | - | 68,749 | 215.04K |
| 12 | FTEK | Fuel Tech, Inc. | 37.46M | -3.17% | 26,066 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 25.90M | 2.55% | 8,305 | 5.23M |
| 14 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 22.46M | - | 15,654 | - |
| 15 | LIQT | LiqTech International, Inc. | 19.50M | 4.26% | 29,839 | 16.51M |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 12.31M | 2.87% | 13,634 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.21M | 4.24% | 137 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 3.00M | 4.11% | 508,754 | 33.94K |
