Funding search · EIN 263372190 · Wilmington, DE
The Mathenaeum Foundation
A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.
- 41
- grants reported
- $1.6M
- total given
- 2022–2024
- filing years
- $25,000
- median grant
Based on grants this organization reported to the IRS for tax years 2022–2024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.
What they fund
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Funding pattern
What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.
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Top recipients
Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.
- Seattle Universal Math Museum8 grants · $357,975
- Society for Science and the Public4 grants · $216,000
- Stony Brook Foundation2 grants · $140,000
- Ronald McDonald House Charities New York Metro1 grant · $98,731
- Mathsworlduk2 grants · $93,707
- Math Cultural Center of Chicago1 grant · $91,597
- Prison Mathematics Project2 grants · $85,000
- Center for Disaster Philanthropy1 grant · $75,000
- Every Org1 grant · $72,000
- St Lawrence University1 grant · $50,000
Giving over time
Grant history
All 41 reported grants, largest first.
- $222,500
Seattle Universal Math Museum · Mercer Island, WA · 2023
Director's Compensation Fund, Studio Infinity programs, and general support
- $116,000
Society for Science and the Public · Washington, DC · 2022
Expand and enhance mathematics coverage in Science News for an eighteen-month period
- $100,000
Stony Brook Foundation · Stony Brook, NY · 2024
This grant is designated for Math for America, restricted to Math for America's Cohort Project program
- $98,731
Ronald McDonald House Charities New York Metro · New Hyde Park, NY · 2023
General & Unrestricted
- $91,597
Math Cultural Center of Chicago · Chicago, IL · 2024
General & Unrestricted
- $75,000
Center for Disaster Philanthropy · Washington, DC · 2023
Ukraine Humanitarian Crisis Recovery Fund
- $72,000
Every Org · San Francisco, CA · 2024
The Prison Math Project
- $61,839
Mathsworlduk · 2022
Expenditure Responsibility Grant
- $60,000
Society for Science and the Public · Washington, DC · 2024
to support mathematics coverage in Science News, broadly along the lines of the Society for Science proposal to the Mathenaeum Foundation
- $60,000
Prison Mathematics Project · Phoenix, AZ · 2023
public and participant outreach and communication and general operating support
- $50,000
St Lawrence University · Canton, NY · 2024
to support the Illustration Apprenticeships program of Illustration as a Mathematical Research Technique semester, with St. Lawrence University as Financial Administrator
- $50,000
Impactstory · Sanford, NC · 2023
General & Unrestricted
- $50,000
University of Southern California · Los Angeles, CA · 2023
USC Math for America Los Angeles
- $43,000
President & Fellows of Harvard College · Cambridge, MA · 2023
Math Dept. Chair's Fund
- $40,000
Stony Brook Foundation · Stony Brook, NY · 2024
This grant is designated for Math for America for the general support of Math for America
- $31,868
Mathsworlduk · 2023
Expenditure Responsibility Grant
- $30,000
Seattle Universal Math Museum · Seattle, WA · 2024
to support the development and operation of in-house programs to serve the local community
- $25,000
Seattle Universal Math Museum · Seattle, WA · 2024
Executive Director Employment Fund
- $25,000
Society for Science and the Public · Washington, DC · 2024
to support mathematics coverage in Science News
- $25,000
Seattle Universal Math Museum · Mercer Island, WA · 2023
Executive Director Employment Fund
- $25,000
Prison Mathematics Project · Phoenix, AZ · 2022
Public and Participant Outreach and Communication
- $25,000
Seattle Universal Math Museum · Mercer Island, WA · 2022
The recruitment and hiring of SUMM's new Executive Director
- $20,000
Seattle Universal Math Museum · Mercer Island, WA · 2022
General & Unrestricted
- $15,000
Girls Angle · Cambridge, MA · 2024
General & Unrestricted
- $15,000
Mathematical Association of America Incorporated · Washington, DC · 2024
anonymous support of Project NExT fellows
- $15,000
Girls Angle · Cambridge, MA · 2023
General & Unrestricted
- $15,000
Mathematical Association of America Incorporated · Washington, DC · 2023
anonymous sponsorship of Project NExT Fellows
- $15,000
National Association of Mathematicians Incorporate · Atlanta, GA · 2023
General & Unrestricted
- $15,000
Talkstem · Dallas, TX · 2023
General & Unrestricted
- $15,000
Venice Heritage Foundation · Venice, CA · 2023
General & Unrestricted
- $15,000
Society for Science and the Public · Washington, DC · 2022
General & Unrestricted
- $14,641
Ross Mathematics Foundation · Columbus, OH · 2022
Ross Endowment Fund
- $11,010
Girls Angle · Cambridge, MA · 2022
General & Unrestricted
- $10,000
Seattle Universal Math Museum · Seattle, WA · 2024
General & Unrestricted
- $10,000
National Organization of Gay and Lesbian Scientist · Pasadena, CA · 2023
Spectra, the association of LGBTQ+ mathematicians
- $10,000
Young Peoples Project · Cambridge, MA · 2023
General & Unrestricted
- $8,000
Mathematical Association of America Incorporated · Washington, DC · 2022
Project NExT
- $6,561
Art of Problem Solving Initiative · New York, NY · 2022
General & Unrestricted
- $6,250
Fannie and John Hertz Foundation · Pleasanton, CA · 2022
General & Unrestricted
- $2,500
Old Westbury College Foundation · Old Westbury, NY · 2023
Institute for Creative Problem Solving
- $475
Seattle Universal Math Museum · Mercer Island, WA · 2023
General & Unrestricted
Grants already paid are the record; PaperOrbit reads your paper and finds the funders whose record matches it — then explains why.
Search funders like this oneSource: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.

