| sportsplexoperators.com | Sportsplex Operators & Developers Association |
| sapca.org.uk | Sport and Play Contractors' Association |
| playindustries.org | Association of Play Industries |
| nsaa.org | NSAA - National Ski Areas Association |
| ngcoa.org | National Golf Course Owners Association (NGCOA) |
| gopaddle.org | The Trade Association of Paddlesports |
| frbc.net | French Racing and Breeding Committee (FRBC) |
| apsa.org.uk | Association of Professional Sports Agents (APSA) |
| sgma.com | Sporting Goods Manufacturers Association |
| racehorsetrainers.org | National Trainers Federation |
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