State Associations
- California State Pipe Trades Association
- Illinois Pipe Trades Association
- MINK (Minnesota, Iowa, Nebraska, Kansas) Pipe Trades
- Minnesota Pipe Trades
- New England Pipe Trades
- Pennsylvania Pipe Trades Association
- Seattle Pipe Trades
- South Bay Piping Industry
- Southern California Pipe Trades District Council # 16
- Southern California Pipe Trades District Council # 16 Organizing
- Tennessee Pipe Trades
- UA of New Jersey – Air Conditioning and Refrigeration Division
- United Association
- Utah Pipe Trades
- Wisconsin Pipe Trades Association