International Union List
Boilermakers International Union
- International President: Mr. Newton Jones
- NMA Contact: David Haggerty
- 8000 Corporate Drive
- Landover, MD 20785
- Tel:: 301-577-4822
- FAX: 301-577-4824
- http://www.boilermakers.org
Bricklayers International Union
- General President: Mr. James Boland
- NMA Contact: Timothy Driscoll
- 620 F Street NW
- Washington, DC 20004-1208
- Tel:: 202-783-3788
- FAX: 202-772-3853
- http://www.bacweb.org
Carpenters International Union
- General President: Mr. Douglas McCarron
- NMA Contact: Gary Rogers
- 101 Constitution Avenue, N.W.
- Washington, DC 20001
- Tel:: 202-546-6206
- FAX: 202-546-5673
- http://www.carpenters.org
International Brotherhood of Electrical Workers
- International President: Mr. Edwin Hill
- NMA Contact: Jerry Westerholm
- 900 Seventh Street, N.W.
- Washington, DC 20001
- Tel:: 202-728-6075
- FAX: 202-728-7678
- http://www.ibew.org
Insulators International Union
- General President: Mr. James Grogan
- NMA Contact: Eugene Leclerc
- 9602 M. L. King Highway
- Lanham, MD 20706-1839
- Tel:: 301-731-9101
- FAX: 301-731-5058
- http://www.insulators.org
Iron Workers International Union
- General President: Mr. Joseph Hunt
- NMA Contact: Bill Tweet
- 1750 New York Avenue N.W.
- Suite 400
- Washington, DC 20006
- Tel:: 202-383-4800
- FAX: 202-347-1496
- http://www.ironworkers.org
Laborers International Union
- General President: Mr. Terence O'Sullivan
- NMA Contact: Brent Booker
- 905 16th Street, N.W.
- Washington, DC 20006
- Tel:: 202-737-8320
- FAX: 202-737-2754
- http://www.liuna.org
Operating Engineers International Union
- General President: Mr. Vincent Giblin
- NMA Contact: James VanDyke
- 1125 17th Street NW
- Washington, DC 20036
- Tel:: 202-429-9100
- FAX: 202-778-2616
- http://www.iuoe.org
Operative Plasterers and Cement Masons International Union
- General President: Mr. Patrick Finley
- NMA Contact: Rob Mason
- 11720 Beltsville Drive Suite 700
- Beltsville, MD 20705
- Tel:: 301-623-1000
- FAX: 301-623-1032
- http://www.opcmia.org
Painters International Union
- General President: Mr. James Williams
- NMA Contact: William Courtien
- 7234 Parkway Drive
- Hanover, MD 21076
- Tel:: 410-564-5900
- FAX: 866-656-4132
- http://www.iupat.org
Roofers International Union
- International President: Mr. Kinsey Robinson
- NMA Contact: James Hadel
- 1660 L. Street, NW Suite 800
- Washington, DC 20036
- Tel:: 202-463-7663
- FAX: 202-463-6906
- http://www.unionroofers.com
Sheet Metal Workers International Union
- General President: Mr. Michael Sullivan
- NMA Contact: Charles Henson
- 1750 New York Avenue, N.W. 6th Floor
- Washington, DC 20006
- Tel:: 202-783-5880
- FAX: 202-662-0892
- http://www.smwia.org
Teamsters International Union
- General President: Mr. James Hoffa
- NMA Contacts: James F. Woodward, Marion D Davis
- 25 Louisiana Avenue, N.W.
- Washington, DC 20001
- Tel:: 202-624-6800
- FAX: 202-624-6925
- http://www.teamster.org
United Association (Pipefitters & Plumbers)
- General President: Mr. William Hite
- NMA Contact: John T. Dugan
- Three Park Place
- Annapolis, MD 21401
- Tel:: 410-269-2000
- FAX: 410-267-0384
- http://www.ua.org
