Person · officer / director

Kathleen Simpson

Treasurer at Sierra Club Foundation. Listed as an officer, director, or key employee across 1 organization on the Form 990 record.

This is me

Ambiguous identity This name matches 9 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

The filed facts are verified from the IRS filings. The biography is compiled from public web sources and grounded to that filed record.

✓ Verified from filings

●

Reported as Treasurer of Sierra Club Foundation, based in Oakland, CA.

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

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Affiliations

Organizations

Sierra Club Foundation Treasurer · $31.9M revenue · Oakland, CAEDUCATE AND EMPOWER PEOPLE TO PROTECT AND IMPROVE THE NATURAL AND HUMAN ENVIRONMENT.Filed FY2025, FY2024 · Source: Form 990, Part VII

Disambiguation

Other people named Kathleen Simpson

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.

Kathleen Simpson 1 organization · Seattle, WAAchievement Rewards for College Scientists Seattle Chapter

Kathleen Simpson 1 organization · New York, NYConfluence Philanthropy INC

Kathleen Simpson 1 organization · Washington, DCBainum Family Foundation

Kathleen Simpson 1 organization · Cary, NCNC Assoc of Comm College Trustees

Kathleen Simpson 1 organization · Unionville, INAmerican Daffodil Society INC

Kathleen Simpson 1 organization · Springfield, MASpringfield Museums Corporation

Kathleen Simpson 1 organization · Tacoma, WAAmerican Leadership Forum of Tacoma Pierce County Chapter

Kathleen Simpson 1 organization · Gig Harbor, WAThe Russell Family Foundation

Kathleen Simpson 1 organization · Farmingdale, NYFarmingdale Baseball League INC

Network

Serves alongside

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

Pedro Henriques Da Silva

Director, Shifting Trillions · FY2024

$251K

Henry Holmes

Sr. Dir, Pgrms/Comp (thru 12/2/24) · FY2024

$227K

Pedro Da Silva

Director, Shifting Trillions · FY2023

$134K

Ting Lee

Asst. Dir., Programs & Compliance · FY2024

$112K

Chair · FY2025

Vice Chair · FY2025

Secretary · FY2025

Member-at-Large · FY2025

Allison Chin

Director (thru 5/30/25) · FY2025

Gabe Gonzalez

Director · FY2025

Peter Liu

Director · FY2025

Christian Okoye

Director (thru 5/30/25) · FY2025

Network

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