| 1 | VLTO | Veralto Corporation | 21.52B | -0.65% | 1,218,935 | 5.59B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 8.56B | -1.31% | 760,772 | 1.74B |
| 3 | FSS | Federal Signal Corporation | 7.42B | -1.23% | 570,182 | 2.34B |
| 4 | CECO | CECO Environmental Corp. | 2.67B | 0.22% | 498,215 | 803.60M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.42B | 5.08% | 3,760,396 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 583.23M | -0.27% | 785,516 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 475.72M | 2.05% | 603,967 | 177.37K |
| 8 | ARQ | Arq, Inc. | 98.12M | 0.88% | 215,604 | 120.34M |
| 9 | ZONE | CleanCore Solutions, Inc. | 62.11M | 2.79% | 1,271,809 | 3.42M |
| 10 | FTEK | Fuel Tech, Inc. | 50.16M | 2.55% | 92,360 | 26.68M |
| 11 | SCWO | 374Water Inc. | 43.43M | 0.40% | 51,908 | 215.04K |
| 12 | BCHT | Birchtech Corp. | 41.83M | -1.24% | 207,166 | 17.63M |
| 13 | CLIR | ClearSign Technologies Corporation | 27.69M | 2.40% | 14,532 | 5.23M |
| 14 | LIQT | LiqTech International, Inc. | 21.98M | 0.45% | 7,061 | 16.51M |
| 15 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 17.77M | 3.83% | 4,870 | - |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 14.17M | 2.97% | 433,626 | 5.64M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 8.98M | -4.93% | 21,491 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 1.66M | 8.42% | 679,710 | 33.94K |
