| Donaldson Company, Inc. | $9.5b | $89.11 | 0.0% | 30 | |
| Amentum Holdings, Inc. | $5.7b | $20.00 | -0.7% | 862 | |
| Perimeter Solutions, Inc. | $5.3b | $36.87 | 0.0% | N/A | |
| Ceco Environmental Corp | $2.7b | $95.50 | 0.0% | N/A | |
| Ecovyst Inc. | $1.4b | $12.14 | 0.0% | 10 | |
| Flowco Holdings Inc. | $1.0b | $20.89 | 0.0% | 109 | |
| Montrose Environmental Group, Inc. | $0.8b | $22.14 | 0.0% | 343.7K | |
| Hudson Technologies Inc | $223.8m | $5.57 | 0.0% | 13 | |
| Perma-Fix Environmental Services, Inc. | $208.1m | $11.93 | 0.0% | 12 | |
| Bridger Aerospace Group Holdings, Inc. Common Stock | $134.9m | $1.75 | 0.0% | 3.0K | |
| Arq, Inc. Common Stock | $118.5m | $2.27 | 0.0% | N/A | |
| Fuel Tech, Inc. | $46.1m | $1.86 | 0.0% | 103 | |
| Birchtech Corp. | $45.2m | $2.02 | 0.0% | N/A | |
| ClearSign Technologies Corporation Common Stock (DE) | $25.1m | $3.40 | 0.0% | N/A | |
| TOMI Environmental Solutions, Inc. | $20.2m | $0.72 | 0.0% | N/A | |
| LiqTech International, Inc. | $10.9m | $0.88 | 0.0% | N/A | |
| Euro Tech Holdings Co Ltd. New | $9.0m | $1.57 | 0.0% | 1.5K | |
| JE Cleantech Holdings Limited Ordinary Shares | $7.2m | $1.22 | 0.0% | N/A | |
| CleanCore Solutions Inc. | $6.4m | $0.81 | -3.4% | 1.0K |