| 1 | VLTO | Veralto Corporation | 21.24B | -0.28% | 2,219,174 | 5.59B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.74B | -3.44% | 724,134 | 1.74B |
| 3 | FSS | Federal Signal Corporation | 6.68B | -2.79% | 376,497 | 2.34B |
| 4 | CECO | CECO Environmental Corp. | 2.81B | -1.41% | 901,973 | 803.60M |
| 5 | PCT | PureCycle Technologies, Inc. | 2.22B | -4.21% | 4,632,834 | 10.90M |
| 6 | ADUR | Aduro Clean Technologies Inc. | 469.27M | -2.76% | 331,427 | 177.37K |
| 7 | ERII | Energy Recovery, Inc. | 436.07M | -6.62% | 933,493 | 136.63M |
| 8 | ZONE | CleanCore Solutions, Inc. | 144.26M | 4.86% | 3,191,711 | 3.41M |
| 9 | ARQ | Arq, Inc. | 109.03M | -1.55% | 167,871 | 122.14M |
| 10 | FTEK | Fuel Tech, Inc. | 46.12M | 2.07% | 222,667 | 26.38M |
| 11 | SCWO | 374Water Inc. | 39.42M | 3.20% | 24,470 | 223.09K |
| 12 | BCHT | Birchtech Corp. | 35.51M | -5.59% | 60,765 | 17.63M |
| 13 | CLIR | ClearSign Technologies Corporation | 24.88M | 4.31% | 6,202 | 5.02M |
| 14 | LIQT | LiqTech International, Inc. | 19.00M | -2.55% | 4,567 | 16.03M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 15.67M | 6.43% | 253,115 | 5.71M |
| 16 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 12.28M | -8.26% | 10,398 | 10.50K |
| 17 | CLWT | Euro Tech Holdings Company Limited | 8.60M | -1.72% | 1,363 | 13.27M |
| 18 | DEVS | DevvStream Corp. | 828.10K | -5.94% | 768,499 | 33.94K |
