IRLEE - Institute for Research on Labor, Employment, and the Economy at the University of Michigan (previously the Institute of Labor and Industrial Relations)

AFL-CIO - American Federation of Labor-Congress of Industrial Organizations

AFSCME - American Federation of State, County, and Municipal Employees

SEIU - Service Employees International Union

UAW - United Auto Workers

George Meany Center for Labor Studies

NAACP - National Association for the Advancement of Colored People

APRI - A. Philip Randolph Institute

APWU - American Postal Workers Union

NALC - National Association of Letter Carriers

CWA - Communications Workers of America

USW - United Steel Workers

IBEW - International Brotherhood of Electrical Workers