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JH
Person · officer / director

Jay Halfon

Director · 350 Org Action Fund

Director at 350 Org Action Fund. Listed as an officer, director, or key employee across 2 organizations 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
2
Roles reported
2
Others who share this name
5

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 Director of 350 Org Action Fund, based in Boston, MA.
Also listed as Board of Director Member of 350 Org, uncompensated.
Facts extracted directly from each organization's Form 990, Part VII.
Biography In progress
We're building a sourced biography for every person — from filings, news, and public records, citing where each fact comes from. Person-name searches are our single largest source of demand, so this is what we're shipping next.

Affiliations

Organizations

Linked as the same person by IRS Schedule R, a shared officer mailing address, or shared fellow board members.

350 Org Action Fund Director · $48K revenue · Boston, MA350.ORG ACTION FUND MOBILIZES PROGRESSIVE VOTERS, GETS CLIMATE CHAMPIONS ELECTED, HOLDS FOSSIL-FUELED POLITICIANS ACCOUNTABLE, SUPPORTS FRONTLINE…Filed FY2024, FY2023, FY2022 · Source: Form 990, Part VII
350 Org Board of Director Member · $23.1M revenue · Boston, MA350.ORG WORKS WITH PEOPLE AROUND THE WORLD, USING ONLINE TOOLS TO FACILITATE STRATEGIC CAMPAIGNS, ORGANIZING, AND PUBLIC ENGAGEMENT ACTIONS TO…Filed FY2020, FY2019 · Source: Form 990, Part VII

Disambiguation

Other people named Jay Halfon

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.

J
Jay Halfon 1 organization · New York, NYChanging Markets Foundation INC
J
Jay Halfon 1 organization · Culver City, CAOne Earth Philanthropy
J
Jay Halfon 1 organization · New York, NYNew York Public Interest Research Group Fund INC
J
Jay Halfon 1 organization · New York, NYTioga Fund INC
J
Jay Halfon 1 organization · Albany, NYNew York State Academy of Trial Lawyers

Network

Serves alongside

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

G
Former Executive Director · FY2024
$213K
O
Managing Director · FY2024
$158K
M
Director of Finance (thru 5/23) · FY2022
$151K
O
Managing Director · FY2021
$150K
R
Head of Operations · FY2024
$141K
N
Head of Public Engagement · FY2024
$141K
Z
Head of Campaigning and Organising · FY2023
$130K
H
Chief Operating Officer · FY2019
$126K
F
Head of Regions · FY2021
$125K
R
Director of Finance · FY2024
$124K
N
Regional Director, Europe · FY2023
$124K
S
Associate Director Us Campaigns · FY2019
$124K

Network

Recommendations

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H
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Public data from IRS Form 990 e-file & the Business Master File. Individuals appear here because they were named as an officer, director, or key employee on a nonprofit's Form 990; people are grouped by name plus corroborating evidence (Schedule R, shared address, shared board members). · philanthropy.org