STRATEGY STUDIO / PUBLIC DATA EXPLORER

CAROL AND WARREN SINSHEIMER FOUNDATION INC

Cite this

Plain text CAROL AND WARREN SINSHEIMER FOUNDATION INC. Strategy Studio, nonprofit organization profile, tax years 2010–2024. https://strategystudio.org/org/770457296. Retrieved 2026-10-20.

APA Strategy Studio. (n.d.). CAROL AND WARREN SINSHEIMER FOUNDATION INC [Nonprofit organization profile; tax years 2010–2024]. Retrieved October 20, 2026, from https://strategystudio.org/org/770457296

MLA “CAROL AND WARREN SINSHEIMER FOUNDATION INC.” Strategy Studio, tax years 2010–2024, https://strategystudio.org/org/770457296. Accessed 20 Oct. 2026.

Retrieved 2026-10-20; covers tax years 2010–2024. Data: Strategy Studio, CC BY 4.0.

2024 · Form 990PF · revenue $3K · expenses $14K · assets $82K

Also known as
FOUNDATION INC
EIN
77-0457296
Address
1745 TIBURON WAY, SN LUIS OBISP, CA 93401-8309
NTEE code
Z99Z
Subsection
501(c)(3)
Ruling year
1998
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Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).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 4 people listed on these returns reported compensation from the organization. They are listed below.

Officers and directors, no compensation reported

4 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
Warren A Sinsheimer Iii PRESIDENT2010-2024 0 $0 reported 2
Carol Sinsheimer SECRETARY/VP2010-2024 0 $0 reported 1
Warren Angus Sinsheimer DIRECTOR2010-2024 0 $0 reported 1
Amy E Sinsheimer DIRECTOR2010-2024 0 $0 reported 1

People by year

2024 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2023 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2022 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2021 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2020 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2019 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2018 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2016 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2015 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2014 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VP0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $0-$0 $01
2010 · 4 people listed · none paid
NameTitleHrs/wkFrom orgFrom relatedOtherTotalOrgs
WARREN A SINSHEIMER III PRESIDENT0 $0-$0 $02
CAROL SINSHEIMER SECRETARY/VICE PRESIDENT0 $0-$0 $01
WARREN ANGUS SINSHEIMER DIRECTOR0 $0-$0 $01
AMY E SINSHEIMER DIRECTOR0 $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.

2024 · 23 grants to organizations · $12K
2023 · 20 grants to organizations · $14K
2022 · 14 grants to organizations · $8K
2021 · 19 grants to organizations · $22K
2020 · 22 grants to organizations · $16K
2019 · 16 grants to organizations · $8K
2018 · 4 grants to organizations · $9K
2016 · 1 grant to organizations · $2K
2015 · 14 grants to organizations · $8K
2014 · 2 grants to organizations · $6K
2010 · 1 grant to organizations · $5K

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.

2020 · 1 contributor · $50K
#ContributorTypeCity, stateTotalNoncashSource
1 CAROL WARREN SINSHEIMER Person SAN LUIS OBISPO, CA $50,000- Form 990PF Sch. B, 2020 · filing
2019 · 1 contributor · $25K
#ContributorTypeCity, stateTotalNoncashSource
1 CAROL WARREN SINSHEIMER Person SAN LUIS OBISPO, CA $25,000- Form 990PF Sch. B, 2019 · filing
2018 · 1 contributor · $25K
#ContributorTypeCity, stateTotalNoncashSource
1 CAROL WARREN SINSHEIMER Person SAN LUIS OBISPO, CA $25,000- Form 990PF Sch. B, 2018 · filing
2015 · 1 contributor · $15K
#ContributorTypeCity, stateTotalNoncashSource
1 CAROL WARREN SINSHEIMER Person SAN LUIS OBISPO, CA $15,000- Form 990PF Sch. B, 2015 · 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
2024 · Form 990PF period ending 2025-03-31 · view filing · original 990 ↗
$3,113$14,176 $82,418$82,418 -- ---
2023 · Form 990PF period ending 2024-03-31 · view filing · original 990 ↗
$2,796$16,547 $93,481$93,481 -- ---
2022 · Form 990PF period ending 2023-03-31 · view filing · original 990 ↗
$2,516$10,317 $107,232$107,232 -- ---
2021 · Form 990PF period ending 2022-03-31 · view filing · original 990 ↗
$2,269$24,688 $115,033$115,033 -- ---
2020 · Form 990PF period ending 2021-03-31 · view filing · original 990 ↗
$51,971$17,802 $137,452$137,452 $50,000- ---
2019 · Form 990PF period ending 2020-03-31 · view filing · original 990 ↗
$26,735$10,582 $103,283$103,283 $25,000- ---
2018 · Form 990PF period ending 2019-03-31 · view filing · original 990 ↗
$26,458$9,007 $87,130$87,130 $25,000- ---
2016 · Form 990PF period ending 2017-03-31 · view filing · original 990 ↗
$1,679$5,054 $62,226$62,226 -- ---
2015 · Form 990PF period ending 2016-03-31 · view filing · original 990 ↗
$16,637$11,328 $65,601$65,601 $15,000- ---
2014 · Form 990PF period ending 2015-03-31 · view filing · original 990 ↗
$5,358$8,543 $60,292$60,292 $1,000- ---
2010 · Form 990PF period ending 2011-03-31 · view filing · original 990 ↗
$96$5,105 $83,575$83,575 -- $0--

Funders of this organization

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

Similar organizations

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 · More (100)

OrganizationStateNTEELatest revenueLatest expensesTop-paid titleTop payWhy similar
ROBERT CHESLEY FOUNDATION INCCAZ99 $3,327$7,509 President$0 Same NTEE code Z99, revenue within 2x, same state
HEART FOUNDATION INDIACAZ99 $3,345$7,380 PRESIDENT$0 Same NTEE code Z99, revenue within 2x, same state
VOLTA MEDICAL FOUNDATION FOR GHANA INCCAZ99 $4,640$113,021 PRES/SECRETA$0 Same NTEE code Z99, revenue within 2x, same state
LYME FIGHT FOUNDATIONCAZ99 $2,402$2,527 CEO$0 Same NTEE code Z99, revenue within 2x, same state
DREAMS WILL COME TRUE FOUNDATIONCAZ99 $5,663$38,692 President$0 Same NTEE code Z99, revenue within 2x, same state
PROJECT NOAHS ARK FOUNDATIONCAZ99 $4,252$0 CEO$0 Same NTEE code Z99, revenue within 2x, same state
AMERICAN-EAST ASIA CULTURE & EDUCATION FOUNDATIONCAZ99 $2,100$2,901 PRESIDENT$0 Same NTEE code Z99, revenue within 2x, same state
FAITHFUL WITH FINANCES FOUNDATIONCAZ99 $5,000$5,250 President$0 Same NTEE code Z99, revenue within 2x, same state
CITIZENS FOR SHELTERED ANIMALS INCCAZ99 $3,072$23,299 Secretary$0 Same NTEE code Z99, revenue within 2x, same state
PEER EDUCATION PROGRAM OF LOS ANGELES INCORPORATEDCAZ99 $4,030$1,855 PRESIDENT$0 Same NTEE code Z99, revenue within 2x, same state
F-4 PHANTOM II SOCIETY INCCAZ99 $5,372$8,230 Chairman$0 Same NTEE code Z99, revenue within 2x, same state
CHILDRENS PSYCHOLOGICAL HEALTH CENTER INCCAZ99 $3,413$30,184 Executive Director$2,445 Same NTEE code Z99, revenue within 2x, same state
UNIQUE START INCCAZ99 $4,375$8,412 Director/CEO$0 Same NTEE code Z99, revenue within 2x, same state
ANTHONY ARIC ARROYO MEMORIAL FUNDCAZ99 $1,605- President$0 Same NTEE code Z99, revenue within 2x, same state
RIVERSIDE POLY HIGH SCHOOL THEATER BOOSTER CLUB CORPORATIONCAZ99 $4,345$5,711 President$0 Same NTEE code Z99, revenue within 2x, same state
LOS CERRITOS NEIGHBORHOOD ASSOCIATIONCAZ99 $5,715$7,423 President$0 Same NTEE code Z99, revenue within 2x, same state
HORSETOWN-CLEAR CREEK PRESERVE INCCAZ99 $5,386$5,450 President$0 Same NTEE code Z99, revenue within 2x, same state
INSTITUTE FOR MOLECULAR MANUFACTURINGCAZ99 $2,429$2,805 Chairman/Pres$0 Same NTEE code Z99, revenue within 2x, same state
NAPA STATE HOSPITAL VOLUNTEER COMMUNITY ADVISORY BOARDCAZ99 $2,621$7,159 OFFICER$0 Same NTEE code Z99, revenue within 2x, same state
US BANGABANDHU PARISHAD CALIFORNIACAZ99 $1,715$1,715 PRESIDENT$0 Same NTEE code Z99, revenue within 2x, same state
SANTA CRUZ COUNTY RAILROAD HISTORICAL SOCIETYCAZ99 $3,728$2,751 President$0 Same NTEE code Z99, revenue within 2x, same state
FRESNO MUSICAL CLUBCAZ99 $3,220$7,915 Vice President$0 Same NTEE code Z99, revenue within 2x, same state
BLACKS IN GOVERNMENTCAZ99 $3,055$1,354 President$0 Same NTEE code Z99, revenue within 2x, same state
SHOWERS OF HOPECAZ99 $4,833$23,430 PRINCIPAL OF$0 Same NTEE code Z99, revenue within 2x, same state
FRIENDS OF R HOUSECAZ99 $2,574$2,174 President$0 Same NTEE code Z99, revenue within 2x, same state

Who funds organizations like this

Grantors that funded the 100 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).

GrantorTypeTotal givenGrantsOrganizations fundedYearsWhich ones
FIDELITY INVESTMENTS CHARITABLE GIFT FUND DAF sponsor$98,4393 32019–2024 FUNDACION LASALLISTA DE MIAMI INC; CHILDRENS PSYCHOLOGICAL HEALTH CENTER INC; CAMERON CAN FOUNDATION
FORGOOD INC DAF sponsor$80,5577 22015–2022 CHILDRENS PSYCHOLOGICAL HEALTH CENTER INC; 90 FOUNDATION
VERMONT COMMUNITY FOUNDATION DAF sponsor$54,0004 12016–2019 CMF INC
MUSKEGON COUNTY COMMUNITY FOUNDATION DAF sponsor$25,4261 12018–2018 REETHS PUFFER EDUCATION INC
NATIONAL TRUST FOR HISTORIC PRESERVATION IN THE UNITED STATES DAF sponsor$25,0002 12010–2015 FRIENDS OF TEACKLE MANSION INC
GRAND RAPIDS COMMUNITY FOUNDATION DAF sponsor$21,0003 12015–2017 REETHS PUFFER EDUCATION INC
COMMUNITY FOUNDATION OF THE EASTERN SHORE INC DAF sponsor$17,6003 12011–2018 FRIENDS OF TEACKLE MANSION INC
BERRIEN COMMUNITY FOUNDATION INC DAF sponsor$16,3501 12018–2018 REETHS PUFFER EDUCATION INC
SHASTA REGIONAL COMMUNITY FOUNDATION DAF sponsor$11,2211 12023–2023 HORSETOWN-CLEAR CREEK PRESERVE INC
LEUPOLD & STEVENS FOUNDATION Private foundation$11,1032 12023–2024 CENTER OF DESIGN FOR AN AGING SOCIETY
RM LIU FAMILY FOUNDATION Private foundation$10,0002 12012–2013 AMERICAN-EAST ASIA CULTURE & EDUCATION FOUNDATION
DICKS SPORTING GOODS FOUNDATION Private foundation$10,0001 12021–2021 GAZMINE MASON FOUNDATION
NATIONAL CHARITABLE ENDOWMENT INC DAF sponsor$10,0001 12024–2024 SHOWERS OF HOPE
GRAND HAVEN AREA COMMUNITY FOUNDATION INC DAF sponsor$7,5001 12022–2022 REETHS PUFFER EDUCATION INC
AMAZONSMILE FOUNDATION Private foundation$7,33470 232020–2023 PRECIOUS JULES CHILDHOOD CANCER FOUNDATION A NJ NONPROFIT CORPORAT; CROOKED RIVER ALLIANCE OF TIMEBANKS INC; 90 FOUNDATION; REETHS PUFFER EDUCATION INC and 19 more

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.

2024 · Form 990PF · $14,176 spent · pay $0 · grants $11,800 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $11,800 83.2%
Fees: accounting $2,200 15.5%
Other expenses $145 1.0%
Taxes $31 0.2%
Total$14,176100%

View the filing

2023 · Form 990PF · $16,547 spent · pay $0 · grants $14,200 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $14,200 85.8%
Fees: accounting $2,175 13.1%
Other expenses $145 0.9%
Taxes $27 0.2%
Total$16,547100%

View the filing

2022 · Form 990PF · $10,317 spent · pay $0 · grants $8,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $8,000 77.5%
Fees: accounting $2,150 20.8%
Other expenses $145 1.4%
Taxes $22 0.2%
Total$10,317100%

View the filing

2021 · Form 990PF · $24,688 spent · pay $0 · grants $22,425 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $22,425 90.8%
Fees: accounting $2,100 8.5%
Other expenses $145 0.6%
Taxes $18 0.1%
Total$24,688100%

View the filing

2020 · Form 990PF · $17,802 spent · pay $0 · grants $15,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $15,500 87.1%
Fees: accounting $2,100 11.8%
Other expenses $180 1.0%
Taxes $22 0.1%
Total$17,802100%

View the filing

2019 · Form 990PF · $10,582 spent · pay $0 · grants $8,300 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $8,300 78.4%
Fees: accounting $2,100 19.8%
Other expenses $155 1.5%
Taxes $27 0.3%
Total$10,582100%

View the filing

2018 · Form 990PF · $9,007 spent · pay $0 · grants $8,750 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $8,750 97.1%
Other expenses $130 1.4%
Taxes $127 1.4%
Total$9,007100%

View the filing

2016 · Form 990PF · $5,054 spent · pay $0 · grants $2,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $2,500 49.5%
Fees: accounting $2,432 48.1%
Other expenses $105 2.1%
Taxes $17 0.3%
Total$5,054100%

View the filing

2015 · Form 990PF · $11,328 spent · pay $0 · grants $8,500 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $8,500 75.0%
Fees: accounting $2,650 23.4%
Other expenses $105 0.9%
Taxes $73 0.6%
Total$11,328100%

View the filing

2014 · Form 990PF · $8,543 spent · pay $0 · grants $6,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $6,000 70.2%
Fees: accounting $2,372 27.8%
Other expenses $147 1.7%
Taxes $24 0.3%
Total$8,543100%

View the filing

2010 · Form 990PF · $5,105 spent · pay $0 · grants $5,000 · events $0
LineAs describedTotalShare
Contributions, gifts, grants paid $5,000 97.9%
Other expenses $105 2.1%
Total$5,105100%

View the filing