| teamster.org | Teamsters Online |
| smwia.org | Sheet Metal Workers' International Association |
| seiu.org | Service Employees International Union (SEIU) |
| nalc.org | National Association of Letter Carriers |
| liuna.org | The Laborers' International Union of North America (LIUNA) |
| ironworkers.org | Ironworkers International |
| ilwu.org | International Longshore and Warehouse Union (ILWU) |
| ifpte.org | International Federation of Professional and Technical Engineers (IFPTE) |
| ibpat.org | International Union Of Painters And Allied Trades, Afl-cio, Clc -- One Union |
| ibew.org | International Brotherhood of Electrical Workers (IBEW) |
| ibelong.com | iuoe.ibelong.com/ |
United States , District of Columbia , Washington