| 1 | VLTO | Veralto Corporation | 22.62B | 0.05% | 642,136 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.57B | 0.42% | 454,646 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 6.50B | -0.10% | 231,325 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.10B | 3.01% | 380,761 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 981.56M | -6.45% | 9,499,862 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 540.44M | -0.29% | 271,299 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 387.68M | 5.55% | 299,677 | 218.51K |
| 8 | ARQ | Arq, Inc. | 80.99M | 0.53% | 606,479 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 73.84M | -0.65% | 1,124,350 | 3.42M |
| 10 | BCHT | Birchtech Corp. | 55.61M | 1.57% | 46,320 | 19.40M |
| 11 | SCWO | 374Water Inc. | 48.07M | 14.52% | 130,380 | 1.91M |
| 12 | FTEK | Fuel Tech, Inc. | 38.69M | 0.80% | 32,386 | 26.68M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 26.49M | 4.02% | 15,713 | - |
| 14 | CLIR | ClearSign Technologies Corporation | 22.06M | -4.94% | 20,993 | 2.15M |
| 15 | LIQT | LiqTech International, Inc. | 13.93M | -0.71% | 3,565 | 16.51M |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 12.97M | -0.37% | 52,196 | 5.69M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.39M | -0.40% | 2,487 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 4.37M | 0.86% | 329,087 | 33.94K |
