| 1 | VLTO | Veralto Corporation | 25.49B | -0.49% | 1,418,768 | 5.45B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.91B | - | 1,376,523 | 1.66B |
| 3 | FSS | Federal Signal Corporation | 6.96B | -2.04% | 677,726 | 2.06B |
| 4 | CECO | CECO Environmental Corp. | 2.39B | 1.33% | 268,985 | 718.25M |
| 5 | PCT | PureCycle Technologies, Inc. | 2.12B | 5.85% | 6,053,547 | 5.66M |
| 6 | ERII | Energy Recovery, Inc. | 757.50M | - | 366,455 | 135.19M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 493.29M | 6.15% | 617,036 | 218.51K |
| 8 | ARQ | Arq, Inc. | 154.98M | - | 399,328 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 84.77M | 2.71% | 2,685,712 | 2.61M |
| 10 | FTEK | Fuel Tech, Inc. | 47.85M | -3.75% | 93,529 | 24.71M |
| 11 | SCWO | 374Water Inc. | 45.02M | 6.40% | 87,233 | 1.91M |
| 12 | CLIR | ClearSign Technologies Corporation | 40.52M | -3.72% | 93,724 | 2.15M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 25.49M | 0.90% | 6,388 | - |
| 14 | LIQT | LiqTech International, Inc. | 16.85M | -3.58% | 12,310 | 16.79M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 15.58M | -1.14% | 5,546 | 5.69M |
| 16 | CLWT | Euro Tech Holdings Company Limited | 9.43M | 5.04% | 6,334 | 14.01M |
| 17 | DEVS | DevvStream Corp. | 4.86M | 2.78% | 237,021 | 26.89K |
