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Money in politics

Lobbying

17,985 companies · $5.6B · 982 also fund a PAC

Companies don’t just donate — they hire lobbyists to push (or block) legislation. Federal law makes them disclose it. This ranks the companies and groups that spent the most lobbying Washington in 2025, drawn from Senate Lobbying Disclosure Act filings.

Spend is the company’s total for the year across everything they lobbied on (the law doesn’t break it down per bill). The ◆ PAC column shows what the same company’s political action committee gives to candidates — the ones doing both, spending to shape laws and funding the people who write them, are worth a closer look.

#CompanySectorsPAC donationsLobbying spend ↓
17701O'brien Gentry & Scott Obo Tekniam ›
DC
—$10K
17702Ocean Thermal Energy ›
PA
—$10K
17703Ocsiai ›—$10K
17704Oklahoma Arthritis Center P.c. ›
OK
—$10K
17705Old West Mining & Minerals ›
MO
—$10K
17706Onelegacy ›
CA
—$10K
17707Oregon Natural Desert Association ›
OR
—$10K
17708Oscilla Power ›
WA
—$10K
17709Oxford Instruments Nanoscience ›—$10K
17710Package Shippers Association ›
DC
—$10K
17711Papon ›—$10K
17712Paramount Tax & Accounting ›
UT
—$10K
17713Patel Partners Obo Niagara Bottling ›
VA
—$10K
17714Patients Rising ›
VA
—$10K
17715Patriot Voices ›
PA
—$10K
17716Paul Marko ›
FL
—$10K
17717Pdk ›
VA
—$10K
17718Peak Energy Technologies ›
CO
—$10K
17719Pembina Pipeline ›
AB
—$10K
17720People Serving People ›
MN
—$10K
17721Perkins School For The Blind ›
MA
—$10K
17722Philadelphia Regional Port Authority ›
PA
—$10K
17723Philadelphia Technician Training Institute ›
PA
—$10K
17724Pih Health Foundation ›
CA
—$10K
17725Plumas-sierra Rural Electric Cooperative ›
CA
—$10K
17726Pluton Biosciences ›
MO
—$10K
17727Pppwu Local 1c - Washington Printing And Graphic Communication Union ›
MD
—$10K
17728Primary Care Collaborative ›
DC
—$10K
17729Primary Class Inc. D/B/A Odyssey ›
NY
—$10K
17730Privateer Sca ›
SC
—$10K
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