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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 ↑
1951Port Authority Of San Antonio ›
TX
—$160K
1952Posit Science ›
CA
—$160K
1953Prysmian ›
KY
—$160K
1954Rank One Computing ›
CO
—$160K
1955Reach Power ›
CA
—$160K
1956Riveer ›
MI
—$160K
1957Rivet Industries ›
DC
—$160K
1958Runsafe Security ›
VA
—$160K
1959Secure Communication Systems Dba Benchmark Secure Technology ›
CA
—$160K
1960Seurat Technologies ›
MA
—$160K
1961Shee Atika ›
AK
—$160K
1962Sheergard Composite Solutions ›
NH
—$160K
1963Shi ›
NJ
—$160K
1964Siff & Associates Pllc (Obo The Mechanical Contractors Association Of America) ›
DC
—$160K
1965Signatory Wall And Ceiling Contractors Alliance ›
MN
—$160K
1966Skayl ›
MD
—$160K
1967Smith Dawson & Andrews (Obo St. Clair County) ›
DC
—$160K
1968Smiths ›
DC
—$160K
1969Southern Mills Inc. D/B/A Tencate Protective Fabrics (Fka Tencate) ›
GA
—$160K
1970Stabbert Maritime ›
WA
—$160K
1971Stemrad ›
FL
—$160K
1972Supplycore ›
IL
—$160K
1973Sustainable Ozarks Partnership ›
MO
—$160K
1974Tclad ›
AZ
—$160K
1975Tcom ›
MD
—$160K
1976Technology Applications ›
ND
—$160K
1977Tekscend Photomasks Round Rock ›
TX
—$160K
1978Teledyne Flir ›
OR
—$160K
1979Terradepth ›
TX
—$160K
1980Association For The Advancement Of Artificial Intelligence ›
DC
—$160K
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