| 1 | VLTO | Veralto Corporation | 22.69B | 1.70% | 2,136,671 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.27B | -0.50% | 921,590 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 7.14B | -0.60% | 470,407 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.35B | -1.55% | 371,245 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.22B | 8.55% | 4,881,202 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 596.96M | -0.96% | 547,861 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 368.58M | 0.82% | 327,284 | 218.51K |
| 8 | ARQ | Arq, Inc. | 95.77M | 5.42% | 652,099 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 71.19M | 0.62% | 1,558,760 | 3.42M |
| 10 | SCWO | 374Water Inc. | 57.56M | 3.45% | 49,548 | 215.04K |
| 11 | BCHT | Birchtech Corp. | 47.35M | 4.05% | 63,759 | 17.63M |
| 12 | FTEK | Fuel Tech, Inc. | 39.92M | 1.56% | 237,248 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 28.94M | -0.74% | 17,754 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 17.71M | 2.30% | 6,248 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 16.77M | -0.45% | 22,373 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 11.89M | 1.69% | 18,780 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.51M | 0.80% | 10,201 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 4.11M | -18.96% | 835,038 | 33.94K |
