Sheet Metal Workers` Local 104
International Training Institute (For the Sheet Metal and Air Conditioning Industry) (ITI)
International Association of Sheet Metal, Air, Rail and Transportation Workers (SMART)
Sheet Metal and Air Conditioning Contractors National Association (SMACNA)
Sheet Metal Occupational Health Institute Trust (SMOHIT)
National Energy Management Institute (NEMI)
Testing, Adjusting, and Balancing Bureau (TABB)