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Julia Koch

Julia Koch

American socialite and philanthropist

New YorkDiversified

AIProfile Summary

Julia Koch is a U.S. billionaire associated with the diversified industry and based in New York. She was born in 1962 and is described as an American socialite and philanthropist, with an estimated net worth of ~$81.2 billion. Wikidata

Business & SEC Activity

The available data lists Koch's industry as diversified but does not provide additional business or company details. Her estimated net worth is ~$81.2 billion. Wikidata

Philanthropy

ProPublica 990 records for three Koch foundations show combined assets of $111,448,122 and total grants paid of $9,747,795 for the reported tax years. Form 990 filings are annual reports that tax-exempt organizations submit to the IRS, including information about assets, revenue, expenses, and grants. ProPublica 990

Political Activity

FEC data shows at least 100 federal contributions; the most recent 100-record sample totals $50,151.20. In that sample, the party breakdown was $10,250 to Democrats, $6,600 to independents, $5,800 to Republicans, and $27,501.20 to PACs or other recipients; the figures cover only the most recent 100 contributions and are not a complete lifetime total. The largest listed recipients were Sinema Leadership Fund ($10,800), KochPAC ($10,000), Sinema for Arizona ($6,600), Sean Patrick Maloney for Congress ($5,800), and Doctor Oz for Senate ($5,800). FEC

In the News

A NewsAPI article dated August 17, 2026, reported that Koch was developing a family compound in Southampton, New York, including renovations and the reported purchase of a nearby plot for $33.5 million. The article described her as private and cited an estimated net worth of ~$81.2 billion. NewsAPI

AI-generated summary from gdelt, fec, newsapi, propublica_990, wikidata 8/29/2026 (gpt-5.6-luna). All claims are derived from the source data shown below.

USU.S. Presence

otherU.S. economic presence

990Philanthropy

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.

$111.4MFoundation Assets
$9.7MGrants Paid
3Foundations
Koch FoundationDes Moines, IA
Assets: $10KRevenue: $18KGrants: $15KTax Year: 2015
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Koch Foundation IncGainesville, FL
Assets: $71.7MRevenue: $6.3MGrants: $6.8MTax Year: 2024
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Koch Foundation IncEvansville, IN
Assets: $39.8MRevenue: $5.1MGrants: $2.9MTax Year: 2023
Mission, purpose & full 990 filings → ProPublica Nonprofit Explorer
Source: ProPublica (990) annual filing · latest on record (retrieved 8/1/2026) (proPublica_990)

FECPolitical Contributions

$50K+In Records We Hold
100+Contributions
2022–2025Range Shown

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)

PAC/Other
$28K
DEM
$10K
IND
$7K
REP
$6K

Top Recipients (in the sample)

SINEMA LEADERSHIP FUND$11K
KOCH, INC. POLITICAL ACTION COMMITTEE (KOCHPAC)$10K
SINEMA FOR ARIZONA$7K
SEAN PATRICK MALONEY FOR CONGRESS$6K
DOCTOR OZ FOR SENATE$6K

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.

Source: FEC contribution filings · latest on record (retrieved 3/9/2026) (fec)

PBSScore Breakdown

C
36.7
Public Benefit Score

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.

Philanthropy65% weight
9%

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

Transparency35% weight
88%

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. View on Wikidata

Julia Koch — Public Benefit Score C (37) | Billionaire Army