| FUTURE FORWARD USA ACTION | person | $344.6M |
| MAJORITY FORWARD | person | $324.0M |
| AMERICAN ACTION NETWORK | person | $199.4M |
| UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | person | $142.6M |
| LEAGUE OF CONSERVATION VOTERS, INC. | person | $125.2M |
| AMERICA VOTES | Individual | $116.9M |
| HOUSE MAJORITY FORWARD | person | $80.5M |
| SIXTEEN THIRTY FUND | person | $80.2M |
| NEA ADVOCACY FUND, ASSOCIATION | Individual | $80.0M |
| NATIONAL EDUCATION ASSOCIATION | Individual | $59.3M |
| COMMUNICATIONS WORKERS OF AMERICA- | Individual | $52.1M |
| AMERICAN ISRAEL PUBLIC AFFAIRS COMMITTEE | person | $51.5M |
| SEIU GENERAL FUND | Individual | $49.7M |
| AB FOUNDATION | person | $47.9M |
| DEMOCRATIC GOVERNORS' ASSOCIATION | person | $47.7M |
| PRIORITIES USA | person | $43.2M |
| ENVIRONMENTAL DEFENSE ACTION FUND | person | $38.9M |
| AFT SOLIDARITY 527 | person | $35.3M |
| INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS POLITICAL ACTION COMMITTEE | committee | $34.1M |
| AMERICAN ASSOCIATION FOR JUSTICE POLITICAL ACTION COMMITTEE (AAJ PAC) | committee | $32.8M |
| REPUBLICAN STATE LEADERSHIP COMMITTEE | person | $32.4M |
| AMERICAN BANKERS ASSOCIATION PAC (BANKPAC) | committee | $32.3M |
| AMERICA'S CREDIT UNIONS PAC OF CREDIT UNION NATIONAL ASSOCIATION, INC. | committee | $31.8M |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES P E O P L E | committee | $31.4M |
| AMALGAMATED BANK | person | $30.0M |
| AFSCME SPECIAL ACCOUNT | person | $29.9M |
| BUILDING AMERICA'S FUTURE | person | $29.5M |
| IBEW PAC EDUCATIONAL FUND | Individual | $28.6M |
| BUILD POLITICAL ACTION COMMITTEE OF THE NATIONAL ASSOCIATION OF HOME BUILDERS (BUILDPAC) | committee | $28.2M |
| DCCC NONFEDERAL RECEIPTS-C | Individual | $27.6M |
| CARPENTERS LEGISLATIVE IMPROVEMENT COMMITTEE UNITED BROTHERHOOD OF CARPENTERS AND JOINERS | committee | $27.5M |
| AMERICAN FEDERATION OF TEACHERS, AFL-CIO COMMITTEE ON POLITICAL EDUCATION | committee | $27.4M |
| HONEYWELL INTERNATIONAL POLITICAL ACTION COMMITTEE | committee | $27.3M |
| UNITED PARCEL SERVICE, INC. PAC (UPSPAC) | committee | $26.3M |
| INTERNATIONAL UNION OF OPERATING ENGINEERS | person | $26.3M |
| DUTY AND HONOR | person | $26.1M |
| AMERICAN PETROLEUM INSTITUTE | Individual | $25.6M |
| D.R.I.V.E. - DEMOCRAT, REPUBLICAN, INDEPENDENT VOTER EDUCATION (THE PAC OF THE INTERNATIONAL BROTHERHOOD OF TEAMSTERS) | committee | $25.5M |
| LABORERS' INTERNATIONAL UNION OF NORTH AMERICA (LIUNA) PAC | committee | $25.1M |
| NATIONAL AIR TRAFFIC CONTROLLERS ASSOCIATION PAC | committee | $24.7M |
| NEA FUND FOR CHILDREN AND PUBLIC EDUCATION | committee | $24.4M |
| AFL-CIO COPE TREASURY | person | $24.2M |
| ENGINEERS POLITICAL EDUCATION COMMITTEE (EPEC)/INTERNATIONAL UNION OF OPERATING ENGINEERS | committee | $23.7M |
| SEIU COPE (SERVICE EMPLOYEES INTERNATIONAL UNION COMMITTEE ON POLITICAL EDUCATION) | committee | $23.7M |
| INTERNATIONAL ASSOCIATION OF FIREFIGHTERS INTERESTED IN REGISTRATION AND EDUCATION PAC | committee | $23.3M |
| UNITED FOOD AND COMMERCIAL WORKERS INTERNATIONAL UNION | person | $22.6M |
| ENVIRONMENT AMERICA, INC. | person | $22.2M |
| DELOITTE POLITICAL ACTION COMMITTEE | committee | $22.2M |
| FUTURE NOW ACTION | person | $21.9M |
| AMERICAN HOSPITAL ASSOCIATION PAC | committee | $21.8M |