- Mechanical Contractors Association of Metropolitan Washington: www.mcamw.org
- MCAA National Association: www.mcaa.org
- Steamfitters Local 602: www.steamfitters-602.org
- Plumbers Local 5: www.local5plumbers.org
- CAUSE: www.causegmw.org
- Plumbing-Heating-Cooling Contractors National Association: www.phccweb.org
- The United Association Mechanical Trades School: www.uamtradeschool.com