| 1 | VLTO | Veralto Corporation | 21.74B | -0.27% | 303,192 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.76B | -0.49% | 364,010 | 1.74B |
| 3 | FSS | Federal Signal Corporation | 7.11B | 0.03% | 83,969 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.33B | 0.99% | 164,966 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.35B | 3.04% | 1,771,213 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 593.79M | 2.09% | 273,664 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 395.66M | 1.36% | 223,148 | 177.37K |
| 8 | ARQ | Arq, Inc. | 98.77M | 0.22% | 86,809 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 62.86M | -0.62% | 623,589 | 3.42M |
| 10 | SCWO | 374Water Inc. | 51.28M | 1.73% | 22,948 | 215.04K |
| 11 | FTEK | Fuel Tech, Inc. | 41.28M | -1.12% | 142,296 | 26.68M |
| 12 | BCHT | Birchtech Corp. | 40.51M | 1.32% | 72,024 | 17.63M |
| 13 | CLIR | ClearSign Technologies Corporation | 27.54M | -1.32% | 3,717 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 21.49M | 1.41% | 6,293 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 19.33M | 0.43% | 3,412 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 13.35M | 8.30% | 422,452 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.43M | 0.72% | 50 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 1.59M | -12.84% | 627,265 | 33.94K |
