NATHANIEL A MESNIKOFF FOUNDATION INC

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Cite this

Plain text NATHANIEL A MESNIKOFF FOUNDATION INC. furp.org, nonprofit organization profile, tax years 2010–2025. https://furp.org/org/nathaniel-a-mesnikoff-foundation-inc-237450437. Retrieved 2026-11-06.

APA furp.org. (n.d.). NATHANIEL A MESNIKOFF FOUNDATION INC [Nonprofit organization profile; tax years 2010–2025]. Retrieved November 6, 2026, from https://furp.org/org/nathaniel-a-mesnikoff-foundation-inc-237450437

MLA “NATHANIEL A MESNIKOFF FOUNDATION INC.” furp.org, tax years 2010–2025, https://furp.org/org/nathaniel-a-mesnikoff-foundation-inc-237450437. Accessed 6 Nov. 2026.

Retrieved 2026-11-06; covers tax years 2010–2025. Data: furp.org (index © the FURP Alliance; the records are public domain).

2025 · Form 990PF · revenue $212K · expenses $131K · assets $913K

Also known as
C/O ANN R MESNIKOFF-CRYSTAL
EIN
23-7450437
Address
813 A ST NE, WASHINGTON, DC 20002-6033
NTEE code
T22 Private Independent Foundations (Philanthropy, Voluntarism and Grantmaking Foundations) inferred (by a small language model from the name and 990 text, confidence 0.55; not an IRS classification)
Exempt type
501(c)(3): charitable, religious, educational, scientific or literary (corporation)
Ruling date
September 1975 (when the IRS recognized its exemption)
IRS status
Exempt (unconditional) (IRS Business Master File) IRS data ↗
Tax-deductible donations
Yes: listed in IRS Publication 78 (private foundation) Pub 78 ↗
Foundation status
Private non-operating foundation
Cross-check
ProPublica Nonprofit Explorer

Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).

People paid by the organization

None of the 5 people listed on these returns reported compensation from the organization. They are listed below.

Officers and directors, no compensation reported

5 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.

NameLatest titleYearsHrs/wk (latest)CompensationOrganizations
Joel Mesnikoff DIRECTOR2010-2025 5 $0 reported 1
Rachel Mesnikoff Guggenheim DIRECTOR2010-2025 5 $0 reported 1
Steven Guggenheim DIRECTOR2010-2025 5 $0 reported 1
Ann Mesnikoff Crystal DIRECTOR2010-2025 5 $0 reported 1
Howard Crystal DIRECTOR2010-2025 5 $0 reported 1

People by year

2025 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2024 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2023 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2022 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2021 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2020 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2019 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2018 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2017 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2016 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2015 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2014 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2013 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2012 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2011 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01
2010 · 5 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
JOEL MESNIKOFF DIRECTOR5 $0-$0 $01
RACHEL MESNIKOFF GUGGENHEIM DIRECTOR5 $0-$0 $01
STEVEN GUGGENHEIM DIRECTOR5 $0-$0 $01
ANN MESNIKOFF CRYSTAL DIRECTOR5 $0-$0 $01
HOWARD CRYSTAL DIRECTOR5 $0-$0 $01

Highest-paid independent contractors

No independent contractors reported.

Who the money went to

Grants this organization reported paying: Schedule I Part II of the Form 990, or the grants-paid list on the 990-PF. Open a year for every recipient. Recipients link to their own page when the grant names an EIN we have (990-PF grants list no EIN, so those link only on an exact, unique name and state). Grants to individuals are counted; their names are not shown.

2025 · 18 grants to organizations · $125K
2024 · 14 grants to organizations · $100K
2023 · 18 grants to organizations · $112K
2022 · 17 grants to organizations · $110K
2021 · 17 grants to organizations · $108K
2020 · 16 grants to organizations · $70K
2019 · 16 grants to organizations · $55K
2018 · 18 grants to organizations · $56K
2017 · 18 grants to organizations · $56K
2016 · 17 grants to organizations · $56K
2015 · 17 grants to organizations · $54K
2014 · 19 grants to organizations · $49K
2013 · 13 grants to organizations · $32K
2012 · 12 grants to organizations · $31K
2011 · 12 grants to organizations · $32K
2010 · 12 grants to organizations · $24K

Negative amounts are returned or refunded grants; they are listed last and left out of the totals of grants paid.

Who gave

Contributors listed on Schedule B of the Form 990-PF: name, city and state as filed (street addresses are not shown), with total and noncash contributions for the year. A link to an organization's page is tagged Fuzzy with its name-similarity score (0 to 1) when it rests on name and state; Schedule B lists no EIN, so no link here is an exact identifier match.

2013 · 2 contributors · $356K
#ContributorTypeCity, stateTotalNoncashSource
2 ESTATE OF ALVIN MESNIKOFF Person $327,476$327,476 Form 990PF Sch. B, 2013 · filing
1 ESTATE OF ALVIN MESNIKOFF Person $28,577- Form 990PF Sch. B, 2013 · filing

Contributors listed here are as reported on the filing. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.

Finances

Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.

RevenueExpensesAssetsNet assetsContributionsProgram revenueOfficer payEmployeesVolunteers
2025 · Form 990PF period ending 2025-12-31 · view filing · original 990 ↗
$212,039$131,057 $913,446$913,446 -- $0--
2024 · Form 990PF period ending 2024-12-31 · view filing · original 990 ↗
$99,884$113,110 $832,464$832,464 -- $0--
2023 · Form 990PF period ending 2023-12-31 · view filing · original 990 ↗
$180,356$119,052 $845,690$845,690 -- $0--
2022 · Form 990PF period ending 2022-12-31 · view filing · original 990 ↗
$37,315$123,283 $784,386$784,386 -- $0--
2021 · Form 990PF period ending 2021-12-31 · view filing · original 990 ↗
$160,834$116,676 $873,593$870,354 -- $0--
2020 · Form 990PF period ending 2020-12-31 · view filing · original 990 ↗
$58,414$75,985 $826,196$826,196 -- $0--
2019 · Form 990PF period ending 2019-12-31 · view filing · original 990 ↗
$60,575$69,648 $843,767$843,767 -- $0--
2018 · Form 990PF period ending 2018-12-31 · view filing · original 990 ↗
$77,376$62,573 $852,840$852,840 -- $0--
2017 · Form 990PF period ending 2017-12-31 · view filing · original 990 ↗
$47,643$65,769 $838,037$838,037 -- $0--
2016 · Form 990PF period ending 2016-12-31 · view filing · original 990 ↗
$30,599$70,909 $908,163$908,163 -- $0--
2015 · Form 990PF period ending 2015-12-31 · view filing · original 990 ↗
$70,379$67,681 $949,112$948,473 -- $0--
2014 · Form 990PF period ending 2014-12-31 · view filing · original 990 ↗
$57,530$64,458 $945,775$945,775 -- $0--
2013 · Form 990PF period ending 2013-12-31 · view filing · original 990 ↗
$405,513$45,606 $953,466$952,703 $356,053- $0--
2012 · Form 990PF period ending 2012-12-31 · view filing · original 990 ↗
$28,518$41,423 $631,897$592,796 -- $0--
2011 · Form 990PF period ending 2011-12-31 · view filing · original 990 ↗
$43,654$49,976 $605,701$605,701 -- $0--
2010 · Form 990PF period ending 2010-12-31 · view filing · original 990 ↗
$26,005$37,271 $617,891$612,023 -- $0--

Funders of this organization

Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).

Nearby + Similar BETA

Organizations like this one: what they do and who they are linked to

Same category: NTEE code and revenue

Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only

OrganizationStateNTEELatest revenueLatest expensesTop-paid titleTop payWhy similar
NATHAN FOUNDATION INCMDNot reported $299,444$312,116 PRESIDENT$0 Similar name, revenue within 2x
ILSE NATHAN FOUNDATION INCCOT20 $22,501$84,747 President$8,400 Similar name, revenue within 10x
THE NATHANIEL FOUNDATION INCTXT20 $4,413,842$3,891,395 TRUSTEE$0 Similar name, revenue differs more than 10x
NATHANIEL E LAWRENCE FOUNDATION INCNYNot reported $0$0 Vice President$0 Similar name
NATHANIEL GREENE MONUMENT FOUNDATION INCRINot reported $0$105 PRESIDENT$0 Similar name

Who funds organizations like this

Grantors that funded the 5 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).

GrantorTotal givenGrantsOrganizations fundedTypeYearsWhich ones
DONOR ADVISED CHARITABLE GIVING $14,3751 1DAF sponsor2023–2023 THE NATHANIEL FOUNDATION INC

The full list · all similar organizations

Where the money went

Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.

2025 · Form 990PF · $131,057 spent · pay $0 · grants $125,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $125,000 95.4%
Other expenses $5,916 4.5%
Taxes $141 0.1%
Total$131,057100%

View the filing

2024 · Form 990PF · $113,110 spent · pay $0 · grants $100,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $100,000 88.4%
Other expenses $5,690 5.0%
Fees: accounting $4,305 3.8%
Taxes $3,115 2.8%
Total$113,110100%

View the filing

2023 · Form 990PF · $119,052 spent · pay $0 · grants $111,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $111,500 93.7%
Other expenses $4,652 3.9%
Fees: accounting $2,900 2.4%
Total$119,052100%

View the filing

2022 · Form 990PF · $123,283 spent · pay $0 · grants $110,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $110,000 89.2%
Fees: accounting $5,576 4.5%
Other expenses $4,753 3.9%
Taxes $2,954 2.4%
Total$123,283100%

View the filing

2021 · Form 990PF · $116,676 spent · pay $0 · grants $108,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $108,500 93.0%
Other expenses $4,974 4.3%
Fees: accounting $3,202 2.7%
Total$116,676100%

View the filing

2020 · Form 990PF · $75,985 spent · pay $0 · grants $70,100 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $70,100 92.3%
Other expenses $4,197 5.5%
Taxes $1,688 2.2%
Total$75,985100%

View the filing

2019 · Form 990PF · $69,648 spent · pay $0 · grants $55,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $55,000 79.0%
Fees: accounting $5,427 7.8%
Taxes $4,652 6.7%
Other expenses $4,569 6.6%
Total$69,648100%

View the filing

2018 · Form 990PF · $62,573 spent · pay $0 · grants $56,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $56,000 89.5%
Other expenses $6,573 10.5%
Total$62,573100%

View the filing

2017 · Form 990PF · $65,769 spent · pay $0 · grants $56,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $56,000 85.1%
Other expenses $5,769 8.8%
Fees: accounting $4,000 6.1%
Total$65,769100%

View the filing

2016 · Form 990PF · $70,909 spent · pay $0 · grants $56,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $56,500 79.7%
Other expenses $8,409 11.9%
Fees: accounting $4,500 6.3%
Taxes $1,500 2.1%
Total$70,909100%

View the filing

2015 · Form 990PF · $67,681 spent · pay $0 · grants $53,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $53,500 79.0%
Other expenses $9,375 13.9%
Fees: accounting $4,220 6.2%
Taxes $586 0.9%
Total$67,681100%

View the filing

2014 · Form 990PF · $64,458 spent · pay $0 · grants $48,566 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $48,566 75.3%
Other expenses $11,105 17.2%
Fees: accounting $4,220 6.5%
Taxes $567 0.9%
Total$64,458100%

View the filing

2013 · Form 990PF · $45,606 spent · pay $0 · grants $32,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $32,000 70.2%
Other expenses $9,237 20.3%
Fees: accounting $3,487 7.6%
Taxes $882 1.9%
Total$45,606100%

View the filing

2012 · Form 990PF · $41,423 spent · pay $0 · grants $30,523 · events $700
LineAs describedTotalShare
Contributions, gifts, grants paid $30,523 73.7%
Other expenses $8,745 21.1%
Fees: accounting $1,455 3.5%
Travel, conferences and meetings $700 1.7%
Total$41,423100%

View the filing

2011 · Form 990PF · $49,976 spent · pay $0 · grants $32,100 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $32,100 64.2%
Other expenses $13,901 27.8%
Fees: accounting $3,975 8.0%
Total$49,976100%

View the filing

2010 · Form 990PF · $37,271 spent · pay $0 · grants $23,600 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $23,600 63.3%
Other expenses $11,006 29.5%
Fees: accounting $2,665 7.2%
Total$37,271100%

View the filing

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