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Money in politics

Lobbying

3,438 companies · $1.8B · 258 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.

Filtered to Defense & Aerospaceclear sector
#CompanySectorsPAC donationsLobbying spend ↑
3031Ouster ›
CA
—$690K
3032Advancing Mental Health For Military Families ›
DE
—$700K
3033Pennsylvania State University ›
PA
—$700K
3034Advanced Medical Technology Association (Advamed) ›
DC
◆ $25K$710K
3035Applied Research Associates ›
NM
◆ $85K$710K
3036Bristow ›
TX
—$710K
3037Dte Energy ›
MI
◆ $56K$710K
3038Hewlett Packard Enterprise ›
DC
◆ $10K$710K
3039Intealth ›
PA
—$710K
3040National Propane Gas Association ›
DC
◆ $65K$710K
3041Travel Tech: The Travel Technology Association ›
VA
—$718K
3042Ameresco ›
MA
—$720K
3043American Counseling Association ›
VA
—$720K
3044Canadian National Railway ›
DC
—$720K
3045Cigna ›
DC
◆ $77K$720K
3046Global Medical Response ›
TX
—$720K
3047Gnc ›
PA
—$720K
3048Princeton University ›
DC
—$720K
3049Radiance Technologies ›
AL
—$720K
3050Rafael ›
MD
—$720K
3051Yahoo ›
VA
—$720K
3052South Coast Air Quality Management District ›
CA
—$723K
3053Parker Hannifin ›
OH
—$730K
3054Skywater Technology Foundry ›
MN
—$730K
3055Astranis Space Technologies ›
CA
—$735K
3056Society Of Thoracic Surgeons ›
DC
◆ $20K$737K
3057Allen Control ›
TX
—$740K
3058Dupont De Nemours ›
DC
—$740K
3059General Dynamics ›
VA
◆ $378K$740K
3060Securities Industry And Financial Markets Association (Sifma) ›
DC
◆ $40K$740K
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