| 1 | VLTO | Veralto Corporation | 20.64B | 1.51% | 6,777,150 | 5.59B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.34B | 3.33% | 1,740,161 | 1.74B |
| 3 | CECO | CECO Environmental Corp. | 5.75B | 4.17% | 777,149 | 803.60M |
| 4 | PCT | PureCycle Technologies, Inc. | 1.57B | 0.93% | 5,796,169 | 10.90M |
| 5 | ADUR | Aduro Clean Technologies Inc. | 509.24M | 2.72% | 340,303 | 177.37K |
| 6 | ERII | Energy Recovery, Inc. | 485.56M | 4.78% | 3,558,242 | 136.63M |
| 7 | ZONE | CleanCore Solutions, Inc. | 218.48M | 7.88% | 5,536,978 | 3.41M |
| 8 | ARQ | Arq, Inc. | 121.91M | 4.03% | 657,881 | 122.14M |
| 9 | BCHT | Birchtech Corp. | 61.56M | 15.84% | 992,145 | 18.65M |
| 10 | FTEK | Fuel Tech, Inc. | 47.99M | 5.48% | 831,791 | 26.38M |
| 11 | SCWO | 374Water Inc. | 39.24M | 3.21% | 78,459 | 223.09K |
| 12 | LIQT | LiqTech International, Inc. | 26.95M | 2.97% | 118,031 | 16.03M |
| 13 | CLIR | ClearSign Technologies Corporation | 20.51M | -3.70% | 34,003 | 5.02M |
| 14 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 16.87M | -5.50% | 184,819 | 10.50K |
| 15 | TOMZ | TOMI Environmental Solutions, Inc. | 16.40M | 8.56% | 133,373 | 5.71M |
| 16 | CLWT | Euro Tech Holdings Company Limited | 14.16M | 21.66% | 1,781,187 | 13.27M |
| 17 | DEVS | DevvStream Corp. | 8.06M | -0.09% | 1,002,104 | 24.49K |
