| Abbreviation | Definition |
|---|---|
| FKBZ | Frustration Killing Bikers Zone |
| FPRL | Flanders Polo and Riding Lessons |
| FRDI | Federation of Riding for the Disabled International |
| FTRA | Fredericton Therapeutic Riding Association |
| GGR | Girlz Gone Riding |
| GHRC | Golden Horseshoe Riding Club |
| GRA | Girls Riding Association |
| GRIT | Girls Riding Into Tomorrow |
| GRTA | Greenwich Riding and Trails Association |
| HALTER | Handicapped Athletes Learning To Enjoy Riding |
| HBR | Horse Back Riding |
| HDRC | Horsham and District Riding Club |
| HFRS | Houston Farm Riding School |
| IDTC | International Dressage Trainers Club |
| IRH | International Riding Helmets |
| ISSRA | Intercollegiate Saddle Seat Riding Association |
| JBRA | Jamaica Bay Riding Academy (Brooklyn, NY) |
| KARS | Kids Are Riding Safely |
| KART | Kent Association of Riding Therapy |
| KBR | knowledge based riding |