Person · officer / director

Charles Koch

Chairman at Rattlesnake Island Club INC. Listed as an officer, director, or key employee across 1 organization on the Form 990 record.

Ambiguous identity This name matches 5 other individuals we could not verify as the same person. Each is kept as a separate record below — treat them as distinct people unless an explicit match is confirmed.

Organizations

Roles reported

Others who share this name

Who this is

Profile

Everything on the left is verified from the IRS filings. The biography on the right is compiled from public web sources and grounded to that filed record.

✓ Verified from filings

●

Reported as Chairman of Rattlesnake Island Club INC, based in Port Clinton, OH.

Facts extracted directly from each organization's Form 990, Part VII.

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Affiliations

Organizations

Rattlesnake Island Club INC Chairman · $1.9M revenue · Port Clinton, OHPRIVATE SOCIAL, RECREATIONAL AND BOATING CLUBFiled FY2025, FY2024, FY2023, FY2022, FY2021, FY2020 · Source: Form 990, Part VII

Disambiguation

Other people named Charles Koch

Different individuals who share this name, separated by IRS Schedule R, mailing address, and shared-board evidence. The 990 carries no person identifier, so some may still be the same person.

Charles Koch 1 organization · Cynthiana, KYHarrison Memorial Hospital INC

Charles Koch 1 organization · Van Wert, OHThe Van Wert County Foundation

Charles Koch 1 organization · Westlake, OHYouth Challenge

Charles Koch 1 organization · Hertford, NCOrphan Medical Network International

Charles Koch 1 organization · Elizabethtown, KYChild Evangelism Fellowship of Kentucky INC

Network

Serves alongside

Other officers, directors & key employees at this person's organizations, by latest reported compensation.

Treasurer · FY2025

Director · FY2025

President · FY2025

Vice Preside · FY2025

Thomas McDonald

Vice Preside · FY2023

Frank Ilcin

Director · FY2022

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