| Service Employees International Union | $84,792,534.00 |
| United Auto Workers | $13,370,148.00 |
| Service Employees Intl Union Local 1999 | $11,280,105.00 |
| American Fedn of St/Cnty/Munic Employees | $6,815,652.00 |
| American Federation of Teachers | $6,022,125.00 |
| Service Employees International Union | $2,671,398.00 |
| International Assn of Fire Fighters | $2,564,769.00 |
| United Food & Commercial Workers Union | $2,034,927.00 |
| Plumbers/Pipefitters Union | $1,575,933.00 |
| UNITE HERE | $1,367,535.00 |
| Laborers Union | $1,247,373.00 |
| Culinary Workers Union Local 226 | $1,188,567.00 |
| National Education Assn | $1,186,929.00 |
| Teamsters Union | $1,029,465.00 |
| Painters & Allied Trades Union | $821,889.00 |
| American Fedn of St/Cnty/Munic Employees | $739,926.00 |
| Chauffers, Warehousemen & Helpers Union | $681,834.00 |
| IBEW Local 98 | $478,245.00 |
| Boilermakers Union | $341,745.00 |
| National Education Assn | $322,002.00 |
| SEIU Illinois State Council | $317,340.00 |
| Amalgamated Transit Union | $281,283.00 |
| American Postal Workers Union | $276,015.00 |
| New York State United Teachers | $195,576.00 |
| United Steelworkers | $184,665.00 |
| National Air Traffic Controllers Assn | $145,215.00 |
| American Federation of Teachers | $130,326.00 |
| Communications Workers of America | $106,005.00 |
| AFL-CIO | $88,152.00 |
| SEIU District 1 | $77,952.00 |
| Mid-Atlantic Laborers' Political League | $76,449.00 |
| Carpenters & Joiners Union | $72,204.00 |
| Intl Brotherhood of Electrical Workers | $65,088.00 |
| Communications Workers of America | $57,570.00 |
| Bricklayers Union | $50,628.00 |
| Laborers Union/New York | $46,821.00 |
| Bakery, Confectionery & Tobacco Workers | $36,984.00 |
| Machinists/Aerospace Workers Union | $34,500.00 |
| National Treasury Employees Union | $33,546.00 |
| United Transportation Union | $33,000.00 |
| International Longshoremens Assn | $33,000.00 |
| Teamsters Union/Ohio | $32,982.00 |
| Hotel/Restaurant Employees Intl Union | $30,000.00 |
| Ironworkers Union | $30,000.00 |
| Sheet Metal Workers Union | $30,000.00 |
| Union of Needletrades Employees/Chicago | $30,000.00 |
| Utility Workers Union of America | $27,453.00 |
| Plumbers/Pipefitters Union Local 533 | $26,877.00 |
| United Mine Workers of America | $26,166.00 |
| AFL-CIO | $25,830.00 |
| Bricklayers Union | $22,500.00 |
| Transport Workers Union | $18,000.00 |
| Plumbers/Pipefitters Union Local 690 | $18,000.00 |
| Operating Engineers Local 324 | $17,172.00 |
| Operating Engineers Local 3 | $16,122.00 |
| Machinists/Aerospace Workers Union | $16,080.00 |
| National Postal Mail Handlers Union | $15,348.00 |
| National Rural Letter Carriers Assn | $15,000.00 |
| United Pilots PAC | $15,000.00 |
| American Federation of Govt Employees | $15,000.00 |
| Intl Longshoremen's/Warehousemen's Union | $15,000.00 |
| Laborers Union/Midwest Region | $15,000.00 |
| Marine Engineers Beneficial Assn/Dist 1 | $15,000.00 |
| Operating Engineers Union | $15,000.00 |
| Office & Professional Employees Union | $15,000.00 |
| Professional Airways Systems Specialists | $12,000.00 |
| Plumbers/Pipefitters Union Local 9 | $10,260.00 |
| Plumbers/Pipefitters Union Local 467 | $9,051.00 |
| National Assn of Letter Carriers | $9,000.00 |
| Natl Active & Retired Fed Employees Assn | $9,000.00 |
| Maintenance of Way Employees | $6,000.00 |
| Illinois State Letter Carriers Assn | $6,000.00 |
| Plumbers & Pipefitters Local Union 25 | $4,200.00 |
| Plumbers/Pipefitters Union Local 50 | $3,942.00 |
| Graphic Communications Union | $3,000.00 |
| Operating Engineers Local 150 | $3,000.00 |
| American Federation of Musicians | $3,000.00 |
| Transportation Communications Union | $3,000.00 |
| Glass Molders Pottery Plastics Workers | $2,646.00 |
| Boilermakers Union Local 85 | $2,208.00 |
| Plasterers & Cement Masons Union | $1,500.00 |
| Laborers Union Local 341 | $936.00 |
| SEIU Oregon State Council | $399.00 |
| Machinists/Aerospace Workers Local 837 | $126.00 |
| American Foreign Service Assn | $0.00 |
Read more at LaborPains.org