Who are the big donors?
- Federal Election CommissionSearch candidate and committee receipt data by contributor, amount and date.
Individual contributions; Search individual contributions to see who is donating to candidates and committees; Search for contributors by name, location, employer and occupation; Lobbyist bundled contributions
- OpenSecrets.org : Responsive PoliticsWho are the major donors? Who are they donating too? OpenSecrets.org is a comprehensive resource for federal campaign contributions, lobbying data and analysis.