Rubblestone Foundation
Rubblestone Foundation is a private foundation based in Jamaica Plain, Massachusetts. Its 2024 filing lists 25 charitable grants totaling $31,545, supporting organizations in Massachusetts and several other states.
Rubblestone Foundation at a glance
In short: Rubblestone Foundation gave $32K across 25 grants in 2024 (avg $1K), mostly in Massachusetts. 24% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $31,545
- -62.4% vs 2023
- Grants made (2024)
- 25
- -51.9% vs 2023
- Average grant
- $1,262
- -21.8% vs 2023
- Median grant
- $500
- Total assets
- $624,159
- +4.3% vs 2023
- New grantees (estimate)
- 24% first-time grantees (6 of 25, 2024)
- Primary geography
- Massachusetts (56% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990-PF, 2024 View filing
Data from IRS Form 990-PF, 2024; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Rubblestone 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: 56 Perkins Street, Jamaica Plain, MA 02130
Phone: (617) 524-5580
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Rubblestone Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was MSPCA ($6K). Together the top 10 received $26K.
Grant Size Distribution
236 grants across all recorded years
The most common grant size was under $50K: 236 grants of 236 (100%).
Geographic Focus
Where this funder awards grants
In 2024, 56% of grant dollars went to recipients in Massachusetts, 16% to North Carolina, 11% to Texas, 9% to California, and 3% to Utah.
Grant Distribution by State
Share of 2024 grant dollars across all 25 itemized grants.
States
Cities
Is Rubblestone Foundation open to new grantees?
24%
first-time grantees, 2024
In 2024, 6 of 25 grantees (24%) were first-time recipients. First grants averaged $1K; repeat grants $1K. How we count
Medians: $625 first-time, $500 repeat.
- 68% of 2024 grantees were also funded in 2023. Method
- Giving fell 55% from 2021 to 2024. Method
- In 2024 it paid out 78% 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 (2020–2024). 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 2020 to 2024, annual grant giving ranged from $32K (2024) to $129K (2022). In 2024 it made 25 grants totaling $32K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| MSPCA Jamaica Plain, MA | Charitable | $6,000 |
| Generations Music for Justice Charlotte, NC | Charitable | $5,000 |
| Mother Jones Big Sandy, TX | Charitable | $3,500 |
| Mount Holyoke College South Hadley, MA | Charitable | $2,500 |
| Union of Concerned Scientists Cambridge, MA | Charitable | $2,100 |
| Mass Law Reform Institute Boston, MA | Charitable | $2,000 |
| Story of Stuff Project Berkeley, CA | Charitable | $1,750 |
| BBMC Charitable and Education Fund Roxbury Crossing, MA | Charitable | $1,500 |
| Earth Justice San Francisco, CA | Charitable | $1,000 |
| Emerald Necklace Conservancy Boston, MA | Charitable | $1,000 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2024 | $624,159 | $46,631 | $38,369 | $31,545 | 25 | $31,581 | $38,493 | $40,313 |
| 2023 | $598,616 | $32,825 | $99,110 | $83,870 | 52 | $83,870 | $26,059 | $35,622 |
| 2022 | $695,194 | $86,513 | $147,895 | $128,738 | 73 | $128,738 | $74,024 | $43,801 |
| 2021 | $761,763 | $97,424 | $85,924 | $70,701 | 32 | — | $88,551 | $42,807 |
| 2020 | $708,639 | $23,732 | $84,811 | $71,000 | 54 | — | $16,599 | $36,136 |
Under IRS private-foundation payout rules, Rubblestone Foundation reported a distributable amount of $40K for 2024 — 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 foundation mission statement is provided. Its 2024 grants include organizations with varied activities. For example, the Union of Concerned Scientists says it puts independent science into action and advocates for a healthy, safe, and just future; the Emerald Necklace Conservancy says it works to restore and improve the Emerald Necklace for all; and Best Friends Animal Society says its goal is to bring about a time when there are no more homeless pets. The Jamaica Plain Tuesday Club says it works to preserve the historic Loring-Greenough House and foster civic and community spirit.
Grantmaking
In 2024, the foundation reported 25 grants totaling $31,545. Grant amounts ranged from $45 to $6,000, with a median of $500. Among the largest awards were $6,000 to MSPCA, $5,000 to Generations Music for Justice, $3,500 to Mother Jones, $2,500 to Mount Holyoke College, and $2,100 to the Union of Concerned Scientists. Other listed awards included $2,000 to Mass Law Reform Institute, $1,750 to the Story of Stuff Project, and $1,000 each to Earth Justice, Emerald Necklace Conservancy, Best Friends Animal Society, and FriendshipWorks.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Marcia C Peters Esq and David J Kraus as trustees.
Rubblestone Foundation's 2024 filing lists 2 officers; none of the 2 officers listed in 2024 report compensation.
Officers on the 2024 filing
Marcia C. Peters Esq.
Trustee
On filings since 2020
2 hrs/week
$5K (2020) → $0 (2024)
David J. Kraus
Trustee
On filings since 2020
2 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2023 IRS filing
The highest reported compensation on the 2023 filing was $7K, to Marcia C Peters ESQ (Trustee).
Frequently asked questions about Rubblestone Foundation
How much does Rubblestone Foundation give each year?
Rubblestone Foundation gave $32K across 25 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $84K across 52 grants.
What is Rubblestone Foundation's typical grant size?
Rubblestone Foundation's median grant in 2024 was $500, and its average grant was $1,262, across 25 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Rubblestone Foundation that year got $1K on average.
Where does Rubblestone Foundation give grants?
Rubblestone Foundation gives mostly in Massachusetts: 56% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were North Carolina (16%) and Texas (11%). The most frequent recipient cities were Boston, MA (4 grants), Jamaica Plain, MA (2 grants) and San Francisco, CA (2 grants).
Does Rubblestone Foundation give general operating support?
Not in 2024: none of the 25 grants with a stated purpose on Rubblestone Foundation's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (25 grants).
Who are Rubblestone Foundation's largest grantees?
Rubblestone Foundation's largest 2024 grantees include MSPCA ($6,000), Generations Music for Justice ($5,000) and Mother Jones ($3,500), according to its 2024 IRS Form 990-PF. Together they received 46% of its itemized 2024 grant dollars.
How large is Rubblestone Foundation?
Rubblestone Foundation reported $624K in total assets on its 2024 IRS Form 990-PF. It paid out $32K in qualifying distributions that year, against a required minimum of $40K (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 Rubblestone Foundation fund?
No foundation mission statement is provided. Its 2024 grants include organizations with varied activities. See mission & focus areas ↑
How do I apply for a grant from Rubblestone 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 Rubblestone Foundation's EIN?
Rubblestone Foundation's EIN (Employer Identification Number) is 04-3467104. IRS Form 990 filing data is available on this page for 2020–2024.
Does Rubblestone 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
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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