| Rank | Abbreviation | Meaning |
|---|
| ***** | CLASH | Association for Children with Language, Speech and Hearing Impairments of Namibia
| |
| ***** | CLASH | Coalition of Lavender Americans on Smoking and Health
| |
| **** | CLASH | Crest Level Assessment of Coastal Structures By Full Scale Monitoring, Neural Network Prediction and Hazard Analysis on Permissible Wave Overtopping
| |
| **** | CLASH | Citizens Lobbying Against Smoker Harassment
| |
| *** | CLASH | Cluster Lensing and Supernova Survey with Hubble
| |
| *** | CLASH | Collective League of Adrenaline, Strength, and Honor
| |
| *** | CLASH | Cumbria and Lancashire Action for Sexual Health
| |
| *** | CLASH | Cape, Land and Sea Harvest
| |
| ** | CLASH | Central London Action on Street Health
| |
| ** | CLASH | California League of Adult Scavenger Hunters
| |
| ** | CLASH | Character Leadership Attitude Stature Heart
| |
| * | CLASH | Central London Action on Sexual Health
| |