| 1 | VLTO | Veralto Corporation | 23.21B | 1.13% | 2,185,365 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.44B | 1.36% | 783,667 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 7.11B | 1.18% | 455,502 | 2.06B |
| 4 | CECO | CECO Environmental Corp. | 2.14B | -22.76% | 3,104,476 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.54B | -1.04% | 3,909,734 | 5.66M |
| 6 | ERII | Energy Recovery, Inc. | 851.26M | 0.06% | 299,875 | 135.19M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 372.07M | 6.89% | 215,628 | 218.51K |
| 8 | ARQ | Arq, Inc. | 145.59M | 1.49% | 126,092 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 65.63M | 3.73% | 4,267,407 | 3.42M |
| 10 | SCWO | 374Water Inc. | 44.85M | 9.96% | 38,700 | 1.91M |
| 11 | FTEK | Fuel Tech, Inc. | 41.33M | -0.75% | 77,218 | 24.71M |
| 12 | CLIR | ClearSign Technologies Corporation | 31.50M | 0.26% | 76,936 | 2.15M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 19.12M | 0.40% | 11,748 | - |
| 14 | LIQT | LiqTech International, Inc. | 17.33M | 20.00% | 16,204 | 16.79M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 13.98M | -12.51% | 377,015 | 5.69M |
| 16 | CLWT | Euro Tech Holdings Company Limited | 9.36M | -0.80% | 565 | 14.01M |
| 17 | DEVS | DevvStream Corp. | 4.16M | 2.15% | 81,861 | 26.89K |
