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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 ↓
631International Brotherhood Of Boilermakers ›
DC
—$390K
632Jrc Integrated ›
DC
—$390K
633Leolabs ›
CA
—$390K
634Signature Performance ›
NE
—$390K
635Src ›
NY
—$390K
636Umo & National Association Of Ukrainian Defense Industries (Naudi) ›—$390K
637Curtiss-wright ›
NC
—$380K
638Huntington Ingalls ›
VA
—$380K
639Marsh Mclennan ›
MD
—$380K
640Michigan State Univ ›
DC
—$380K
641Northrop Grumman ›
VA
◆ $479K$380K
642Rutgers - The State University Of New Jersey ›
NJ
—$380K
643Whoop ›
MA
—$380K
644Rajant ›
PA
—$373K
645National Air Transportation Association ›
DC
—$371K
646Associated Equipment Distributors ›
IL
◆ $5K$370K
647Association Of Metropolitan Water Agencies ›
DC
—$370K
648Battery Materials And Technology Coalition ›
DC
—$370K
649Biomass Energy Systems Inc. (Besi) ›
IL
—$370K
650Chugach Alaska ›
AK
◆ $46K$370K
651Cook Inlet Region Incorporated (Ciri) ›
AK
—$370K
652Defenders Of Wildlife ›
DC
—$370K
653Hawkeye 360 ›
VA
—$370K
654Infinera ›
CA
—$370K
655Securing Americas Future Energy Alliance ›
DC
—$370K
656Skydio ›
CA
—$370K
657Turbineone ›
CA
—$370K
658Turo ›
CA
—$370K
659Vanadium Producers And Reclaimers Association ›
DC
—$370K
660International Federation Of Professional And Technical Engineers (Ifpte) ›
DC
—$365K
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