William Koch
Profile Summary
William Koch is a U.S. citizen born in 1940 and identified as an energy billionaire based in Florida. His net worth is estimated at ~$2.0 billion. RTB
Philanthropy
Three listed Koch Foundation records report combined assets of $111,448,122 and $9,747,795 in grants paid, covering tax years 2015, 2023, and 2024. The Florida foundation reported $71,661,279 in assets and $6,835,631 in grants paid for 2024; the Indiana foundation reported $39,777,311 in assets and $2,897,162 in grants paid for 2023. ProPublica 990
Political Activity
The available FEC data contains at least 100 federal contributions; the figures below cover only the most recent 100 records, not Koch's full history. Those sampled records total $2,379.24, with $780 to Democratic recipients, $9.50 to Republican recipients, and $1,589.74 categorized as unknown; the largest listed recipient was ActBlue at $1,099. FEC
In the News
A May 28, 2026 news report said Bill Koch planned to auction a 52-acre Aspen estate valued at $125 million. NewsAPI
U.S. Presence
Philanthropy
Foundations are matched to a person by name, not by trustee records — so a same-surname family foundation can land here in error. Every entity below links to its full IRS filing; if one doesn’t belong, tell us at hello@skylarkcreations.com and we’ll pull it.
Political Contributions
These figures cover the 100 most recent federal contributions on file, not the full record. The total, party split, top recipients and dates below are all computed over that sample, so each is a floor rather than a complete figure.
By Party (in the sample)
Top Recipients (in the sample)
Matched by name only. These are the donations the FEC lists under this person’s name — so a different person with the same name can show up here too.
Score Breakdown
The PBS is a weighted average of 2 components. The formula is open and versioned — the weight percentages below show how much each component contributes to the final score.
Evidenced charitable giving — built on what they actually give each year, not parked assets. Dominated by generosity (annual giving relative to net worth — the share of your fortune you give), plus the absolute scale of that giving, plus a small nudge for signing the Giving Pledge (a commitment, not a realized action).
Data: ProPublica 990 charitable disbursements, net worth, The Giving Pledge registry
How much sourced, public accountability data exists — net worth, political contributions, SEC filings, foundation 990s, news coverage, and a verified profile. More public disclosure scores higher.
Data: FEC, SEC EDGAR, ProPublica 990s, GDELT / NewsAPI, Wikidata
Formula (v2): PBS = 65% x Philanthropy + 35% x Transparency
Scored on 8/31/2026 on a 0–100 scale. The score uses only the signals we have populated data for. Goal Impact, Controversy, and Community Approval are deferred until that data exists — Phase 1 goal adoption, controversy detection, and community votes respectively.
All data is sourced from public records. Each section links to its original source.