| Rank | Abbreviation | Meaning |
|---|
| ***** | PCHA | paper chromatography hybridization assay
| |
| ***** | PCHA | Pope County Historical Association
| |
| **** | PCHA | Pacific Coast Hockey Association
| |
| *** | PCHA | Presidential Commission on HIV AIDS
| |
| ** | PCHA | Puglia Custom Homes & Additions
| |
| ** | PCHA | Pacific Collegiate Hockey Association
| |
| ** | PCHA | Pocatello Christian Homeschool Association
| |
| ** | PCHA | Presidential Commission on Holocaust Assets in the US
| |
| * | PCHA | Paddington Churches Housing Association
| |
| * | PCHA | Pierce County Housing Authority
| |
| * | PCHA | Provo City Housing Authority
| |
| * | PCHA | PA Catholic Health Association
| |
| * | PCHA | Partnership to Cut Hunger in Africa
| |
| * | PCHA | Purdue Cooperative Housing Association
| |
| * | PCHA | Pinellas County Hunter Association
| |
| * | PCHA | Plymouth Canton Hockey Association
| |
| * | PCHA | Philadelphia Community Health Alternatives
| |
| * | PCHA | Pennsylvania Catholic Health Association
| |
| * | PCHA | Professional Clinical Hypnotherapists of Australia
| |
| * | PCHA | Polk County Historical Association
| |
| * | PCHA | PERSONAL COMPUTER HISTORICAL ANALYSIS
| |
| * | PCHA | Pictou County Health Authority
| |
| * | PCHA | Plymouth Commons Homeowners Association
| |
| * | PCHA | Port Credit Hockey Association
| |
| * | PCHA | Pamlico County Horseman's Association
| |