| 1 | VLTO | Veralto Corporation | 23.38B | -0.90% | 1,507,881 | 5.50B |
| 2 | ZWS | Zurn Elkay Water Solutions Corporation | 7.90B | -2.17% | 828,282 | 1.70B |
| 3 | FSS | Federal Signal Corporation | 6.62B | -3.20% | 452,827 | 2.18B |
| 4 | CECO | CECO Environmental Corp. | 1.87B | -3.70% | 837,054 | 774.38M |
| 5 | PCT | PureCycle Technologies, Inc. | 1.10B | 1.50% | 3,935,936 | 8.36M |
| 6 | ERII | Energy Recovery, Inc. | 560.51M | -1.12% | 756,742 | 134.99M |
| 7 | ADUR | Aduro Clean Technologies Inc. | 365.00M | -2.85% | 153,183 | 218.51K |
| 8 | ARQ | Arq, Inc. | 137.05M | -5.59% | 416,864 | 117.95M |
| 9 | ZONE | CleanCore Solutions, Inc. | 63.36M | -6.09% | 2,949,640 | 3.42M |
| 10 | BCHT | Birchtech Corp. | 60.41M | 3.52% | 152,225 | 19.40M |
| 11 | SCWO | 374Water Inc. | 42.48M | -1.95% | 38,715 | 1.91M |
| 12 | FTEK | Fuel Tech, Inc. | 38.22M | -1.60% | 612,310 | 26.68M |
| 13 | CLIR | ClearSign Technologies Corporation | 28.71M | 2.78% | 193,348 | 2.15M |
| 14 | RAIN | Rain Enhancement Technologies Holdco, Inc. | 21.24M | 0.72% | 4,727 | - |
| 15 | LIQT | LiqTech International, Inc. | 14.13M | -5.96% | 23,675 | 16.51M |
| 16 | TOMZ | TOMI Environmental Solutions, Inc. | 13.21M | -3.17% | 19,760 | 5.69M |
| 17 | CLWT | Euro Tech Holdings Company Limited | 9.92M | -4.01% | 9,977 | 14.01M |
| 18 | DEVS | DevvStream Corp. | 3.56M | 2.46% | 9,246 | 26.89K |
