- Arizona Rugby Referee Society
- Deep South Rugby Referees Society
- Eastern Pennsylvania Rugby Referees Society
- Lincolnland Referee Society
- MidSouth Rugby Referee Society
- Midwest Rugby Referee Society
- New England Rugby Referee Society
- New York State Rugby Referees Society
- Rugby Referee Society of New York
- Northern California Rugby Referee Society
- Ohio Rugby Referees Society
- Potomac Rugby Referees
- Rocky Mountain Rugby Referees
- Southeast Rugby Referee Society
- Southern California Rugby Referees Society
- Texas Rugby Referee Association
- Referees Society of Virginia
- Wisconsin Rugby Referee Society