The Thendara Foundation
The Thendara Foundation is a private foundation based in Wilmington, Delaware. Its 2025 filing lists grants to charitable organizations, including organizations in the arts, education, humanitarian aid, conservation, and legal services.
The Thendara Foundation at a glance
In short: The Thendara Foundation gave $650K across 105 grants in 2025 (avg $6K), top state California. 19% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $649,931
- +16.0% vs 2024
- Grants made (2025)
- 105
- +8.2% vs 2024
- Average grant
- $6,190
- +7.1% vs 2024
- Median grant
- $2,500
- Total assets
- $9,936,636
- +0.3% vs 2024
- New grantees (estimate)
- 19% first-time grantees (20 of 105, 2025)
- Primary geography
- California (30% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to The Thendara Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 1100 N Market Street 4Th Fl, Wilmington, DE 19890
Phone: (302) 651-8300
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Thendara Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Art Base ($62K). Together the top 10 received $294K.
Grant Size Distribution
546 grants across all recorded years
The most common grant size was under $50K: 540 grants of 546 (99%).
Geographic Focus
Where this funder awards grants
In 2025, California received 30% of grant dollars, Colorado 28%, and New York 17%. Maine received 5% and Rhode Island 4%.
Grant Distribution by State
Share of 2025 grant dollars across all 105 itemized grants.
States
Cities
Is The Thendara Foundation open to new grantees?
19%
first-time grantees, 2025
In 2025, 20 of 105 grantees (19%) were first-time recipients. First grants averaged $7K; repeat grants $6K. How we count
Medians: $5K first-time, $2K repeat.
- 70% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (+0%). Method
- In 2025 it paid out 95% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $532K (2019) to $650K (2025). In 2025 it made 105 grants totaling $650K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Art Base Basalt, CO | General Support & Capital Campaign | $62,000 |
| Shadowlight Productions San Francisco, CA | General Support | $54,000 |
| Palestine Children's Relief Fund Los Angeles, CA | General Support | $34,431 |
| St George's School Middletown, RI | General Support | $28,000 |
| Colorado Rocky Mountain School (CRMS) Carbondale, CO | Health Education Program | $27,500 |
| Aspen Country Day School (Acds) Aspen, CO | General Support | $26,500 |
| Heal Palestine Kent, OH | General Support | $16,500 |
| Coastal Mountains Land Trust Camden, ME | Conservation Campaign & Stewardship Program | $15,000 |
| Kingston Music Inititativetempo Kingston, NY | General Support | $15,000 |
| St James' Episcopal School Los Angeles, CA | General Support | $15,000 |
Ready to take the next step with The Thendara Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $9,936,636 | $818,690 | $790,400 | $649,931 | 105 | $678,718 | $714,710 | $710,967 |
| 2024 | $9,908,346 | $776,194 | $677,418 | $560,394 | 97 | $588,421 | $687,184 | $677,958 |
| 2023 | $9,809,570 | $382,742 | $708,935 | $598,418 | 112 | $628,164 | $286,438 | $590,152 |
| 2022 | $10,140,118 | $718,119 | $788,107 | $649,176 | 122 | $668,855 | $601,586 | $618,094 |
| 2021 | $10,210,106 | $2,012,252 | $687,092 | $551,844 | 110 | $570,982 | $1,903,309 | $668,304 |
| 2020 | $8,884,946 | $1,471,879 | $665,685 | $562,298 | 99 | — | $1,366,076 | $570,972 |
| 2019 | $8,078,752 | $615,453 | $670,219 | $531,750 | 133 | — | $516,365 | $584,857 |
Under IRS private-foundation payout rules, The Thendara Foundation reported a distributable amount of $711K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2025 grants show support for organizations with varied purposes. For example, Palestine Children’s Relief Fund describes its mission as providing non-political humanitarian relief focused on healthcare for children in Palestine. Coastal Mountains Land Trust says it conserves land for the benefit of natural and human communities in western the Penobscot Bay region. St. George’s School describes its mission as helping students in grades 9 through 12 develop their abilities.
Grantmaking
In 2025, the foundation made 105 grants totaling $649,931. Awards ranged from $1,000 to $62,000, with a median grant of $2,500. The largest grants included $62,000 to Art Base for general support and a capital campaign; $54,000 to Shadowlight Productions for general support; $34,431 to Palestine Children’s Relief Fund for general support; and $28,000 to St. George’s School for general support. Other grants included $27,500 to Colorado Rocky Mountain School for a health education program and $15,000 to Coastal Mountains Land Trust for a conservation campaign and stewardship program.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Janet Reed Goss, Foster A. Reed, CL Reed III, and Dorothy Foster Reed as trustees. It lists Sophie Schlumberger as president, Cristian Goss as vice president, Anderson Foster Reed as treasurer, and Nicholas Reed as secretary.
The Thendara Foundation is led by Sophie Schlumberger, President on every filing since 2022; none of the 8 officers listed in 2025 report compensation.
Officers on the 2025 filing
Sophie Schlumberger
President
On filings since 2022
2 hrs/week
No compensation reported
Cl Reed III
Trustee
On filings since 2019
2 hrs/week
No compensation reported
Dorothy Foster Reed
Trustee
On filings since 2019
2 hrs/week
No compensation reported
Foster A. Reed
Trustee
On filings since 2019
2 hrs/week
No compensation reported
Janet Reed Goss
Trustee
On filings since 2019
2 hrs/week
No compensation reported
Anderson Foster Reed
Treasurer
On filings since 2022
2 hrs/week
No compensation reported
Cristian Goss
Vice President
On filings since 2022
2 hrs/week
No compensation reported
Nicholas Reed
Secretary
On filings since 2022
2 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The Thendara Foundation
How much does The Thendara Foundation give each year?
The Thendara Foundation gave $650K across 105 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $560K across 97 grants.
What is The Thendara Foundation's typical grant size?
The Thendara Foundation's median grant in 2025 was $2,500, and its average grant was $6,190, across 105 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Thendara Foundation that year got $7K on average.
Where does The Thendara Foundation give grants?
The Thendara Foundation's top state is California, with 30% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Colorado (28%) and New York (17%). The most frequent recipient cities were San Francisco, CA (14 grants), Missoula, MT (11 grants), New York, NY (7 grants) and Camden, ME (5 grants).
Does The Thendara Foundation give general operating support?
Yes: 95% of The Thendara Foundation's 2025 grants with a stated purpose (100 of 105) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are The Thendara Foundation's largest grantees?
The Thendara Foundation's largest 2025 grantees include Art Base ($62,000), Shadowlight Productions ($54,000) and Palestine Children's Relief Fund ($34,431), according to its 2025 IRS Form 990-PF. Together they received 23% of its itemized 2025 grant dollars.
How large is The Thendara Foundation?
The Thendara Foundation reported $9.9M in total assets on its 2025 IRS Form 990-PF. It paid out $679K in qualifying distributions that year, against a required minimum of $711K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does The Thendara Foundation fund?
No mission statement for the foundation is provided. Its 2025 grants show support for organizations with varied purposes. For example, Palestine Children’s Relief Fund describes its mission as providing non-political humanitarian relief focused on healthcare for children in Palestine. See mission & focus areas ↑
How do I apply for a grant from The Thendara Foundation?
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Thendara Foundation's EIN?
The Thendara Foundation's EIN (Employer Identification Number) is 31-1126072. IRS Form 990 filing data is available on this page for 2019–2025.
Does The Thendara Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS April 21, 2020)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS May 8, 2026)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS April 7, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS June 13, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 3, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS April 3, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS April 25, 2025)
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Cite this profile
Grantable. (2026). The Thendara Foundation funder profile. GrantGraph. Retrieved October 10, 2026, from https://grantable.co/funders/the-thendara-foundation-morg_f406132d7b80474aab5fa1e3d5747213
BibTeX
@misc{grantable_311126072_2026,
author = {{Grantable}},
title = {{The Thendara Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/the-thendara-foundation-morg_f406132d7b80474aab5fa1e3d5747213},
note = {Accessed 2026-10-10. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from The Thendara Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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