Find Your Representatives
In this section, more than 20,000 organizations are profiled, including the 100 biggest givers in federal-level politics since 1989. Read more about our methodology.
Top All-Time Donors
OpenSecrets.org's historically researched organizations| Rank | Organization | Total All Cycles |
|---|---|---|
| 1 | Service Employees International Union | $275,442,324 |
| 2 | Fahr LLC | $166,425,507 |
| 3 | National Education Assn | $120,023,786 |
| 4 | Las Vegas Sands | $113,527,608 |
| 5 | American Fedn of St/Cnty/Munic Employees | $108,781,910 |
| 6 | Renaissance Technologies | $95,336,214 |
| 7 | American Federation of Teachers | $92,774,426 |
| 8 | Carpenters & Joiners Union | $92,129,559 |
| 9 | Laborers Union | $84,977,603 |
| 10 | National Assn of Realtors | $84,965,082 |
Top Outside Spending Organizations, 2015 - 2016
| Rank | Organization | Total Outside Spending |
|---|---|---|
| 1 | Priorities USA/Priorities USA Action | $133,407,972 |
| 2 | Right to Rise USA | $86,817,138 |
| 3 | Senate Leadership Fund | $86,025,770 |
| 4 | Democratic Congressional Campaign Cmte | $82,649,610 |
| 5 | National Republican Congressional Cmte | $76,948,187 |
| 6 | Senate Majority PAC | $75,413,426 |
| 7 | Conservative Solutions PAC | $55,443,483 |
| 8 | National Rifle Assn | $54,747,518 |
| 9 | House Majority PAC | $47,470,121 |
| 10 | Democratic Senatorial Campaign Cmte | $41,244,208 |
Top Lobbying Organizations, 2016
| Rank | Organization | Total Lobbying |
|---|---|---|
| 1 | US Chamber of Commerce | $103,950,000 |
| 2 | National Assn of Realtors | $64,821,111 |
| 3 | Blue Cross/Blue Shield | $25,006,109 |
| 4 | American Hospital Assn | $22,117,895 |
| 5 | Pharmaceutical Research & Manufacturers of America | $19,730,000 |
| 6 | American Medical Assn | $19,410,000 |
| 7 | Boeing Co | $17,020,000 |
| 8 | National Assn of Broadcasters | $16,438,000 |
| 9 | AT&T Inc | $16,370,000 |
| 10 | Business Roundtable | $15,700,000 |
Top Contributors, 2015 - 2016
| Rank | Organization | Total Contributions |
|---|---|---|
| 1 | Fahr LLC | $90,622,606 |
| 2 | Renaissance Technologies | $55,193,161 |
| 3 | Las Vegas Sands | $44,092,166 |
| 4 | Paloma Partners | $41,945,500 |
| 5 | Adelson Drug Clinic | $38,847,300 |
| 6 | Newsweb Corp | $37,802,040 |
| 7 | Service Employees International Union | $35,295,106 |
| 8 | Priorities USA/Priorities USA Action | $34,877,765 |
| 9 | NextGen Climate Action | $34,628,524 |
| 10 | Elliott Management | $27,981,630 |
| 11 | National Education Assn | $27,374,555 |
Campaign finance totals for the current election cycle were released by the FEC on May 16, 2017 and by the IRS on August 15, 2016, lobbying data was released by the Senate Office of Public Records on January 25, 2017, and outside spending data was released by the FEC on July 22, 2017.
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