Many heat treaters belong to the GMP Council: Glass, Molders, Pottery, Plastics and Allied Workers, one of America's oldest labor unions. Additionally, heat treaters find useful resources, workshops, training and certification programs, and other professional support through ASM International and the Metal Treating Institute.
- Chemical Technicians
- Chemists
- Coremakers
- Electroplating Workers
- Engineering Technicians
- Engineers
- Forge Shop Workers
- Job and Die Setters
- Laboratory Testing Technicians
- Layout Workers
- Metallurgical Engineers
- Metallurgical Technicians
- Millwrights
- Molders
- Precision Metalworkers
- Quality Control Engineers
- Quality Control Technicians
- Sheet Metal Workers
- Steel Industry Workers
- Welders and Welding Technicians