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Campaign Receipts
Back to Tammy Sue Baldwin
FEC campaign finance
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Tammy Sue Baldwin — who funded the campaign

Public Federal Election Commission data, aggregated by contributor. Click a column header to re-sort. See our methodology for how we classify donor profiles.

2024 cycle2022 cycle2020 cycle
$50.2M
Total raised
84%
From individuals
5%
From PACs
0%
Self-funded
Industry rollup (from top 20)
Updated 2026-06-28 · source: FEC

Where the money clusters

FEC classifies unitemized contributions and retiree donations under generic buckets ("Individual / Retired"). These are not real industries — we surface them for transparency but exclude them from top-industry summaries elsewhere on the site.

  • Individual / RetiredFEC unitemized
    $2.8M
  • Big Tech
    $49K
Top contributors

20 contributors aggregated by name + employer

Sort byAmountFEC rankName
  1. #1
    SELF-EMPLOYED
    SELF-EMPLOYED[Individual / Retired]
    $2.7M
  2. #2
    UW HEALTH
    UW HEALTH
    $67K
  3. #3
    SELF- EMPLOYED
    SELF- EMPLOYED
    $50K
  4. #4
    GOOGLE
    GOOGLE[Big Tech]
    $49K
  5. #5
    UW-MADISON
    UW-MADISON
    $45K
  6. #6
    SELF EMPLOYED
    SELF EMPLOYED[Individual / Retired]
    $44K
  7. #7
    UNIVERSITY OF WISCONSIN
    UNIVERSITY OF WISCONSIN
    $41K
  8. #8
    SELF
    SELF
    $38K
  9. #9
    EPIC
    EPIC
    $35K
  10. #10
    UW MADISON
    UW MADISON
    $34K
  11. #11
    MARQUIS MANAGEMENT INC
    MARQUIS MANAGEMENT INC
    $32K
  12. #12
    MARSHFIELD CLINIC
    MARSHFIELD CLINIC
    $28K
  13. #13
    MEDICAL COLLEGE OF WISCONSIN
    MEDICAL COLLEGE OF WISCONSIN
    $27K
  14. #14
    WILMERHALE
    WILMERHALE
    $26K
  15. #15
    UNIVERSITY OF WISCONSIN-MADISON
    UNIVERSITY OF WISCONSIN-MADISON
    $25K
  16. #16
    PROMEGA CORPORATION
    PROMEGA CORPORATION
    $22K
  17. #17
    UNIVERSITY OF WISCONSIN - MADISON
    UNIVERSITY OF WISCONSIN - MADISON
    $21K
  18. #18
    BROADRIDGE
    BROADRIDGE
    $20K
  19. #19
    BROADRIDGE FINANCIAL SOLUTIONS
    BROADRIDGE FINANCIAL SOLUTIONS
    $20K
  20. #20
    EPIC SYSTEMS CORPORATION
    EPIC SYSTEMS CORPORATION
    $19K
Data source: FEC OpenAPI v1 (FEC candidate S2WI00219 ). Aggregated by contributor name + employer to deduplicate. The individual / PAC / self-funded breakdown is computed from the candidate’s reported totals; the industry rollup uses a keyword classifier on contributor employer + occupation fields (small, conservative — false-positives hurt credibility more than missing tags). Last synced Jun 28, 2026.

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