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Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).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.
| Name | Latest title | Years | Hrs/wk (latest) | Compensation | Organizations |
|---|---|---|---|---|---|
| Warren A Sinsheimer Iii | PRESIDENT | 2010-2024 | 0 | $0 reported | 2 |
| Carol Sinsheimer | SECRETARY/VP | 2010-2024 | 0 | $0 reported | 1 |
| Warren Angus Sinsheimer | DIRECTOR | 2010-2024 | 0 | $0 reported | 1 |
| Amy E Sinsheimer | DIRECTOR | 2010-2024 | 0 | $0 reported | 1 |
People by year
2024 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2023 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2022 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2021 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2020 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2019 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2018 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2016 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2015 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2014 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VP | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
2010 · 4 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| WARREN A SINSHEIMER III | PRESIDENT | 0 | $0 | - | $0 | $0 | 2 |
| CAROL SINSHEIMER | SECRETARY/VICE PRESIDENT | 0 | $0 | - | $0 | $0 | 1 |
| WARREN ANGUS SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
| AMY E SINSHEIMER | DIRECTOR | 0 | $0 | - | $0 | $0 | 1 |
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
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | CAROL WARREN SINSHEIMER | Person | SAN LUIS OBISPO, CA | $50,000 | - | Form 990PF Sch. B, 2020 · filing |
2019 · 1 contributor · $25K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | CAROL WARREN SINSHEIMER | Person | SAN LUIS OBISPO, CA | $25,000 | - | Form 990PF Sch. B, 2019 · filing |
2018 · 1 contributor · $25K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | CAROL WARREN SINSHEIMER | Person | SAN LUIS OBISPO, CA | $25,000 | - | Form 990PF Sch. B, 2018 · filing |
2015 · 1 contributor · $15K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 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.
| Revenue | Expenses | Assets | Net assets | Contributions | Program revenue | Officer pay | Employees | Volunteers |
|---|---|---|---|---|---|---|---|---|
| 2024 · Form 990PF | ||||||||
| $3,113 | $14,176 | $82,418 | $82,418 | - | - | - | - | - |
| 2023 · Form 990PF | ||||||||
| $2,796 | $16,547 | $93,481 | $93,481 | - | - | - | - | - |
| 2022 · Form 990PF | ||||||||
| $2,516 | $10,317 | $107,232 | $107,232 | - | - | - | - | - |
| 2021 · Form 990PF | ||||||||
| $2,269 | $24,688 | $115,033 | $115,033 | - | - | - | - | - |
| 2020 · Form 990PF | ||||||||
| $51,971 | $17,802 | $137,452 | $137,452 | $50,000 | - | - | - | - |
| 2019 · Form 990PF | ||||||||
| $26,735 | $10,582 | $103,283 | $103,283 | $25,000 | - | - | - | - |
| 2018 · Form 990PF | ||||||||
| $26,458 | $9,007 | $87,130 | $87,130 | $25,000 | - | - | - | - |
| 2016 · Form 990PF | ||||||||
| $1,679 | $5,054 | $62,226 | $62,226 | - | - | - | - | - |
| 2015 · Form 990PF | ||||||||
| $16,637 | $11,328 | $65,601 | $65,601 | $15,000 | - | - | - | - |
| 2014 · Form 990PF | ||||||||
| $5,358 | $8,543 | $60,292 | $60,292 | $1,000 | - | - | - | - |
| 2010 · Form 990PF | ||||||||
| $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)
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|---|---|---|---|---|---|---|---|
| ROBERT CHESLEY FOUNDATION INC | CA | Z99 | $3,327 | $7,509 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
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| LYME FIGHT FOUNDATION | CA | Z99 | $2,402 | $2,527 | CEO | $0 | Same NTEE code Z99, revenue within 2x, same state |
| DREAMS WILL COME TRUE FOUNDATION | CA | Z99 | $5,663 | $38,692 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
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| AMERICAN-EAST ASIA CULTURE & EDUCATION FOUNDATION | CA | Z99 | $2,100 | $2,901 | PRESIDENT | $0 | Same NTEE code Z99, revenue within 2x, same state |
| FAITHFUL WITH FINANCES FOUNDATION | CA | Z99 | $5,000 | $5,250 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| CITIZENS FOR SHELTERED ANIMALS INC | CA | Z99 | $3,072 | $23,299 | Secretary | $0 | Same NTEE code Z99, revenue within 2x, same state |
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| F-4 PHANTOM II SOCIETY INC | CA | Z99 | $5,372 | $8,230 | Chairman | $0 | Same NTEE code Z99, revenue within 2x, same state |
| CHILDRENS PSYCHOLOGICAL HEALTH CENTER INC | CA | Z99 | $3,413 | $30,184 | Executive Director | $2,445 | Same NTEE code Z99, revenue within 2x, same state |
| UNIQUE START INC | CA | Z99 | $4,375 | $8,412 | Director/CEO | $0 | Same NTEE code Z99, revenue within 2x, same state |
| ANTHONY ARIC ARROYO MEMORIAL FUND | CA | Z99 | $1,605 | - | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| RIVERSIDE POLY HIGH SCHOOL THEATER BOOSTER CLUB CORPORATION | CA | Z99 | $4,345 | $5,711 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| LOS CERRITOS NEIGHBORHOOD ASSOCIATION | CA | Z99 | $5,715 | $7,423 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| HORSETOWN-CLEAR CREEK PRESERVE INC | CA | Z99 | $5,386 | $5,450 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| INSTITUTE FOR MOLECULAR MANUFACTURING | CA | Z99 | $2,429 | $2,805 | Chairman/Pres | $0 | Same NTEE code Z99, revenue within 2x, same state |
| NAPA STATE HOSPITAL VOLUNTEER COMMUNITY ADVISORY BOARD | CA | Z99 | $2,621 | $7,159 | OFFICER | $0 | Same NTEE code Z99, revenue within 2x, same state |
| US BANGABANDHU PARISHAD CALIFORNIA | CA | Z99 | $1,715 | $1,715 | PRESIDENT | $0 | Same NTEE code Z99, revenue within 2x, same state |
| SANTA CRUZ COUNTY RAILROAD HISTORICAL SOCIETY | CA | Z99 | $3,728 | $2,751 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| FRESNO MUSICAL CLUB | CA | Z99 | $3,220 | $7,915 | Vice President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| BLACKS IN GOVERNMENT | CA | Z99 | $3,055 | $1,354 | President | $0 | Same NTEE code Z99, revenue within 2x, same state |
| SHOWERS OF HOPE | CA | Z99 | $4,833 | $23,430 | PRINCIPAL OF | $0 | Same NTEE code Z99, revenue within 2x, same state |
| FRIENDS OF R HOUSE | CA | Z99 | $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).
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
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $11,800 | 83.2% | |
| Fees: accounting | $2,200 | 15.5% | |
| Other expenses | $145 | 1.0% | |
| Taxes | $31 | 0.2% | |
| Total | $14,176 | 100% |
2023 · Form 990PF · $16,547 spent · pay $0 · grants $14,200 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $14,200 | 85.8% | |
| Fees: accounting | $2,175 | 13.1% | |
| Other expenses | $145 | 0.9% | |
| Taxes | $27 | 0.2% | |
| Total | $16,547 | 100% |
2022 · Form 990PF · $10,317 spent · pay $0 · grants $8,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $8,000 | 77.5% | |
| Fees: accounting | $2,150 | 20.8% | |
| Other expenses | $145 | 1.4% | |
| Taxes | $22 | 0.2% | |
| Total | $10,317 | 100% |
2021 · Form 990PF · $24,688 spent · pay $0 · grants $22,425 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $22,425 | 90.8% | |
| Fees: accounting | $2,100 | 8.5% | |
| Other expenses | $145 | 0.6% | |
| Taxes | $18 | 0.1% | |
| Total | $24,688 | 100% |
2020 · Form 990PF · $17,802 spent · pay $0 · grants $15,500 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $15,500 | 87.1% | |
| Fees: accounting | $2,100 | 11.8% | |
| Other expenses | $180 | 1.0% | |
| Taxes | $22 | 0.1% | |
| Total | $17,802 | 100% |
2019 · Form 990PF · $10,582 spent · pay $0 · grants $8,300 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $8,300 | 78.4% | |
| Fees: accounting | $2,100 | 19.8% | |
| Other expenses | $155 | 1.5% | |
| Taxes | $27 | 0.3% | |
| Total | $10,582 | 100% |
2018 · Form 990PF · $9,007 spent · pay $0 · grants $8,750 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $8,750 | 97.1% | |
| Other expenses | $130 | 1.4% | |
| Taxes | $127 | 1.4% | |
| Total | $9,007 | 100% |
2016 · Form 990PF · $5,054 spent · pay $0 · grants $2,500 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $2,500 | 49.5% | |
| Fees: accounting | $2,432 | 48.1% | |
| Other expenses | $105 | 2.1% | |
| Taxes | $17 | 0.3% | |
| Total | $5,054 | 100% |
2015 · Form 990PF · $11,328 spent · pay $0 · grants $8,500 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $8,500 | 75.0% | |
| Fees: accounting | $2,650 | 23.4% | |
| Other expenses | $105 | 0.9% | |
| Taxes | $73 | 0.6% | |
| Total | $11,328 | 100% |
2014 · Form 990PF · $8,543 spent · pay $0 · grants $6,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $6,000 | 70.2% | |
| Fees: accounting | $2,372 | 27.8% | |
| Other expenses | $147 | 1.7% | |
| Taxes | $24 | 0.3% | |
| Total | $8,543 | 100% |
2010 · Form 990PF · $5,105 spent · pay $0 · grants $5,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $5,000 | 97.9% | |
| Other expenses | $105 | 2.1% | |
| Total | $5,105 | 100% |