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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 ↓
571Mediatek ›
CA
—$432K
572Indiana University ›
IN
—$430K
573Int'l. Association Of Bridge Structural Ornamental & Reinforcing Iron Workers ›
DC
◆ $85K$430K
574Tyson Shared ›
DC
—$430K
575Us Strategic Metals ›
MO
—$430K
576Western Digital ›
CA
—$430K
577Wiz ›
NY
—$430K
578Metrea ›
DC
—$430K
579Ywca ›
DC
—$425K
580Astranis Space Technologies ›
CA
—$420K
581Babel Street ›
VA
—$420K
582Cencora Inc. (Formerly Amerisourcebergen Corporation) ›
DC
◆ $77K$420K
583Choctaw Nation Of Oklahoma ›
OK
—$420K
584Clemson University ›
SC
—$420K
585National Cable Telecommunications Association ›
DC
—$420K
586National Nurses United ›
MD
—$420K
587Newsmax ›
FL
—$420K
588Parallax Advanced Research ›
OH
—$420K
589Parsons Government ›
DC
—$420K
590Stratolaunch ›
CA
—$420K
591University Of Alaska ›
AK
—$420K
592University Of Oklahoma ›
OK
—$420K
593Everfox ›
VA
—$417K
594Dartmouth College ›
NH
—$415K
595Parry Labs ›
VA
—$415K
596American Public Education ›
WV
—$410K
597Management & Training ›
UT
◆ $10K$410K
598Mp Materials ›
NV
—$410K
599Ncta - The Internet And Television Association ›
DC
◆ $20K$410K
600Sentinelone ›
CA
—$410K
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