| 1 | VLTO | Veralto Corporation | 22.25B | 1.23% | 637,326 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.24B | 3.08% | 661,181 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 7.19B | 2.59% | 293,059 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.37B | 3.39% | 264,161 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.10B | 2.44% | 1,809,554 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 603.30M | 2.79% | 462,593 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 344.44M | 7.25% | 354,376 | 218.51K |
| 8 | ARQ | Arq, Inc. | 92.34M | -0.69% | 247,469 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 69.93M | 0.64% | 848,086 | 3.42M |
| 10 | SCWO | 374Water Inc. | 55.64M | 2.57% | 59,010 | 215.04K |
| 11 | BCHT | Birchtech Corp. | 46.04M | 5.42% | 126,636 | 17.63M |
| 12 | FTEK | Fuel Tech, Inc. | 39.46M | 1.18% | 175,038 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 27.75M | -3.02% | 36,210 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 17.61M | 2.34% | 727 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 16.65M | -4.57% | 18,625 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 11.29M | -5.19% | 46,080 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.43M | 1.21% | 848 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 4.72M | 39.21% | 9,604,376 | 33.94K |
