| 1 | VLTO | Veralto Corporation | 22.14B | -0.36% | 928,463 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.09B | 1.47% | 265,791 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 6.96B | 1.01% | 248,158 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 2.30B | 3.13% | 153,416 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 970.49M | -2.72% | 2,398,516 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 585.87M | 3.45% | 413,165 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 343.93M | 1.16% | 115,140 | 218.51K |
| 8 | ARQ | Arq, Inc. | 92.34M | -5.90% | 490,183 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 70.54M | -1.67% | 616,000 | 3.42M |
| 10 | SCWO | 374Water Inc. | 52.50M | 5.24% | 26,998 | 215.04K |
| 11 | BCHT | Birchtech Corp. | 47.23M | -5.01% | 47,972 | 17.63M |
| 12 | FTEK | Fuel Tech, Inc. | 40.23M | 1.55% | 62,586 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 34.17M | -2.35% | 39,466 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 18.01M | 1.97% | 65,272 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 17.15M | -15.04% | 14,073 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 11.71M | 2.33% | 8,443 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.43M | -1.20% | 256 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 3.36M | -3.08% | 73,815 | 33.94K |
