Tamarack Foundation
Tamarack Foundation is a private foundation based in Boston, Massachusetts (EIN 04-6027800). Its 2025 grants supported charitable organizations working in areas reflected in the grants, including religion, education, social services, housing, and health.
Tamarack Foundation at a glance
In short: Tamarack Foundation gave $144K across 57 grants in 2025 (avg $3K), mostly in Massachusetts. 15% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $143,700
- -2.3% vs 2024
- Grants made (2025)
- 57
- -6.6% vs 2024
- Average grant
- $2,521
- +4.6% vs 2024
- Median grant
- $1,000
- Total assets
- $1,236,532
- +3.0% vs 2024
- New grantees (estimate)
- 15% first-time grantees (8 of 52, 2025)
- Primary geography
- Massachusetts (84% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Tamarack 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: 21 Custom House St Fl 5, Boston, MA 02110
Phone: (617) 227-0600
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Tamarack Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was St John the Baptist Parish ($20K). Together the top 10 received $94K.
Grant Size Distribution
243 grants across all recorded years
The most common grant size was under $50K: 243 grants of 243 (100%).
Geographic Focus
Where this funder awards grants
In 2025, Massachusetts recipients received 84% of grant dollars. Recipients in Missouri received 6%, Colorado 3%, Oregon 2%, and New York 1%.
Grant Distribution by State
Share of 2025 grant dollars across all 57 itemized grants.
States
Cities
Is Tamarack Foundation open to new grantees?
15%
first-time grantees, 2025
In 2025, 8 of 52 grantees (15%) were first-time recipients. First grants averaged $2K; repeat grants $3K. How we count
Medians: $2K first-time, $1K repeat.
- 85% of 2025 grantees were also funded in 2024. Method
- Giving grew 60% from 2022 to 2025. Method
- In 2025 it paid out 234% of its IRS minimum distribution (the 5% rule). 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 $90K (2022) to $147K (2024). In 2025 it made 57 grants totaling $144K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| St John the Baptist Parish Peabody, MA | Religious | $20,000 |
| Chabad Lubavitch Swampscott, MA | Religious | $18,000 |
| Boston Symphony Orchestra Boston, MA | SOCIAL | $17,000 |
| FNE International Weymouth, MA | HOUSING:EDUCATION | $10,000 |
| Girl's Inc Lynn Lynn, MA | Educational | $6,500 |
| Swampscott Tides Swampscott, MA | SOCIAL | $5,000 |
| WGBH Channel 2 Boston, MA | Educational | $5,000 |
| McLean Hospital Belmont, MA | Medical | $4,000 |
| Waldorf School at Moraine Farm Beverly, MA | Educational | $3,000 |
| Unitarian Universalist Church of Greater Lynn Swampscott, MA | Religious | $2,500 |
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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 | $1,236,532 | $198,740 | $162,391 | $143,700 | 57 | $149,520 | $58,639 | $63,764 |
| 2024 | $1,200,184 | $558,500 | $160,661 | $147,070 | 61 | $150,703 | $98,788 | $57,904 |
| 2023 | $802,348 | $110,233 | $100,861 | $92,450 | 41 | $95,327 | $99,820 | $53,767 |
| 2022 | $792,976 | $101,270 | $99,069 | $89,850 | 36 | $92,623 | $90,351 | $51,234 |
| 2021 | $790,782 | $115,954 | $110,814 | $101,900 | 48 | $104,621 | $89,344 | $49,043 |
| 2020 | $785,642 | $116,383 | $113,067 | $103,000 | 45 | — | $104,226 | $46,293 |
| 2019 | $782,326 | $109,204 | $113,514 | $103,528 | 43 | — | $101,855 | $43,771 |
Under IRS private-foundation payout rules, Tamarack Foundation reported a distributable amount of $64K 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 grantees illustrate a range of activities: the Boston Symphony Orchestra says its mission is to foster musical performance and provide educational and training programs; FNE International says it partners with communities in developing nations to improve housing, health, and education; and Waldorf School at Moraine Farm says it helps students develop their capacities and contribute to society.
Other 2025 recipients included Circle of Concern, which says it feeds people experiencing hunger and assists low-income families in west St. Louis County; Operation Food Search, which says it works to address hunger through food and collaborative solutions; and Uncornered, which says it works with active and former gang-involved individuals to build peaceful, thriving cities.
Grantmaking
The foundation made 57 grants totaling $143,700 in 2025. Awards ranged from $200 to $20,000, with a median of $1,000. Its largest listed grants were $20,000 to St John the Baptist Parish, $18,000 to Chabad Lubavitch, and $17,000 to the Boston Symphony Orchestra. Other notable awards included $10,000 to FNE International, $6,500 to Girl’s Inc Lynn, $5,000 each to Swampscott Tides and WGBH Channel 2, and $4,000 to McLean Hospital.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists William H Darling and Henry P Phippen as trustees.
Tamarack Foundation's 2025 filing lists 2 officers; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Henry P. Phippen
Trustee
On filings since 2019
2 hrs/week
No compensation reported
William H. Darling
Trustee
On filings since 2019
1 hr/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 Tamarack Foundation
How much does Tamarack Foundation give each year?
Tamarack Foundation gave $144K across 57 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $147K across 61 grants.
What is Tamarack Foundation's typical grant size?
Tamarack Foundation's median grant in 2025 was $1,000, and its average grant was $2,521, across 57 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Tamarack Foundation that year got $2K on average.
Where does Tamarack Foundation give grants?
Tamarack Foundation gives mostly in Massachusetts: 84% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Missouri (6%). The most frequent recipient cities were Boston, MA (8 grants), Swampscott, MA (5 grants), St. Louis, MO (4 grants) and Steamboat Springs, CO (4 grants).
Does Tamarack Foundation give general operating support?
Not in 2025: none of the 57 grants with a stated purpose on Tamarack Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Social" (16 grants), "Educational" (16 grants) and "Medical" (7 grants).
Who are Tamarack Foundation's largest grantees?
Tamarack Foundation's largest 2025 grantees include St John the Baptist Parish ($20,000), Chabad Lubavitch ($18,000) and Boston Symphony Orchestra ($17,000), according to its 2025 IRS Form 990-PF. Together they received 38% of its itemized 2025 grant dollars.
How large is Tamarack Foundation?
Tamarack Foundation reported $1.2M in total assets on its 2025 IRS Form 990-PF. It paid out $150K in qualifying distributions that year, against a required minimum of $64K (roughly 5% of its investment assets).
What does Tamarack Foundation fund?
No mission statement for the foundation is provided. See mission & focus areas ↑
How do I apply for a grant from Tamarack 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 Tamarack Foundation's EIN?
Tamarack Foundation's EIN (Employer Identification Number) is 04-6027800. IRS Form 990 filing data is available on this page for 2019–2025.
Does Tamarack Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated September 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 2024 (received by the IRS May 6, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
- Added Form 990-PF for fiscal year 2019 (received by the IRS June 22, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS May 10, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 12, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
Explore Open Grants
Browse active grant opportunities in Tamarack Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Tamarack Foundation funder profile. GrantGraph. Retrieved October 12, 2026, from https://grantable.co/funders/tamarack-foundation-morg_3ac18ce12a984595aa1b245b41da9d52
BibTeX
@misc{grantable_046027800_2026,
author = {{Grantable}},
title = {{Tamarack Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/tamarack-foundation-morg_3ac18ce12a984595aa1b245b41da9d52},
note = {Accessed 2026-10-12. 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 Tamarack 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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