| 1 | VLTO | Veralto Corporation | 24.49B | -0.15% | 640,099 | 5.45B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.57B | -1.82% | 200,148 | 1.66B |
| 3 | FSS | Federal Signal Corporation | 6.53B | -2.13% | 100,445 | 2.06B |
| 4 | CECO | CECO Environmental Corp. | 1.74B | -1.30% | 250,596 | 718.25M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.57B | -4.90% | 1,483,730 | 5.66M |
| 6 | ERII | Energy Recovery, Inc. | 771.80M | 0.14% | 248,116 | 135.19M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 346.63M | -2.70% | 75,022 | 160.66K |
| 8 | ARQ | Arq, Inc. | 154.55M | 2.55% | 488,711 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 68.49M | -5.40% | 2,791,397 | 2.61M |
| 10 | FTEK | Fuel Tech, Inc. | 56.56M | -1.09% | 98,789 | 24.71M |
| 11 | SCWO | 374Water Inc. | 45.70M | -3.57% | 1,414,416 | 1.91M |
| 12 | CLIR | ClearSign Technologies Corporation | 43.25M | -6.41% | 99,679 | 2.15M |
| 13 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 41.42M | -11.94% | 19,609 | - |
| 14 | LIQT | LiqTech International, Inc. | 18.75M | -3.70% | 16,198 | 16.79M |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 15.06M | -8.59% | 75,141 | 5.69M |
| 16 | CLWT | Euro Tech Holdings Company Limited | 9.14M | 8.11% | 5,969 | 15.38M |
| 17 | DEVS | DevvStream Corp. | 6.42M | 1.36% | 6,851 | 25.79K |
