| Donaldson Company, Inc. | $10.9b | $98.77 | -0.0% | 188 | |
| Amentum Holdings, Inc. | $5.4b | $24.25 | +0.2% | 5.2K | |
| Perimeter Solutions, Inc. | $5.0b | $32.94 | +0.2% | 4.3K | |
| Ceco Environmental Corp | $3.8b | $71.87 | 0.0% | 6.4K | |
| Ecovyst Inc. | $1.3b | $12.12 | +7.3% | 1.0K | |
| Flowco Holdings Inc. | $0.9b | $20.36 | 0.0% | 202 | |
| Montrose Environmental Group, Inc. | $0.8b | $22.14 | 0.0% | 343.7K | |
| Perma-Fix Environmental Services, Inc. | $355.8m | $18.10 | 0.0% | 383 | |
| Hudson Technologies Inc | $254.1m | $6.33 | 0.0% | 2.3K | |
| Bridger Aerospace Group Holdings, Inc. Common Stock | $111.8m | $1.79 | 0.0% | 12.3K | |
| Arq, Inc. Common Stock | $84.6m | $2.08 | 0.0% | N/A | |
| CleanCore Solutions Inc. | $81.3m | $0.34 | +2.3% | 19.5K | |
| Fuel Tech, Inc. | $43.9m | $1.44 | 0.0% | 3.5K | |
| Birchtech Corp. | $35.8m | $1.37 | 0.0% | 6 | |
| ClearSign Technologies Corporation Common Stock (DE) | $24.3m | $4.12 | 0.0% | 40 | |
| LiqTech International, Inc. | $23.0m | $0.69 | 0.0% | 22 | |
| TOMI Environmental Solutions, Inc. | $13.4m | $1.93 | 0.0% | 300 | |
| Euro Tech Holdings Co Ltd. New | $11.0m | $1.47 | 0.0% | 409 | |
| JE Cleantech Holdings Limited Ordinary Shares | $7.1m | $1.40 | 0.0% | N/A |