Janet & Seth Rosenberg Foundation Inc
JANET & SETH ROSENBERG FOUNDATION I is a private foundation based in Cambridge, Massachusetts. In its 2025 filing, it reported 10 grants totaling $22,650 to charitable organizations, including organizations addressing food distribution, support for children with life-threatening illnesses, disability programs, education, and community needs.
Key facts about Janet & Seth Rosenberg Foundation Inc
In short: Janet & Seth Rosenberg Foundation Inc gave $23K across 10 grants in 2025 (avg $2K), mostly in Massachusetts. 30% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- EIN
- 42-1529790
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $22,650
- Grants made (2025)
- 10
- Average grant
- $2,265
- Median grant
- $1,000
- New grantees (estimate)
- 30% first-time grantees (3 of 10, 2025)
- Total assets
- $683,883
- Primary geography
- Massachusetts (68% of itemized 2025 grant dollars)
- Accepts unsolicited proposals
- No
- How to apply
- The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Full details ↓
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$684K
+51.3% YoY
Annual Giving
$23K
+8.6% YoY
Grant Count
10
+11.1% YoY
Avg Grant Size
$2K
-2.2% YoY
Is Janet & Seth Rosenberg Foundation Inc open to new grantees?
30%
first-time grantees, 2025
In 2025, 3 of 10 grantees (30%) were first-time recipients. First grants averaged $2K; repeat grants $2K. How we count
Medians: $500 first-time, $1K repeat.
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Mission & Focus Areas
No mission statement for the foundation is provided. Its 2025 grants show support for organizations with varied missions. The Greater Boston Food Bank describes its work as acquiring, sorting, and distributing food through member agencies and direct distribution sites. Friends of Karen says it provides emotional, financial, and advocacy support to children with life-threatening illnesses and their families. Quincea describes programs intended to empower and advance adults with intellectual and physical disabilities. Washington & Jefferson College says its mission is to educate students to become effective lifelong learners and responsible citizens.
Grantmaking
In 2025, the foundation made 10 grants totaling $22,650. Grants ranged from $500 to $10,000, with a median grant of $1,000.
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Geographic Focus
Where this funder awards grants
The 2025 grants went to organizations in multiple states. Massachusetts received 68% of grant dollars, followed by New York (11%), California (7%), Florida (4%), and Arizona (4%). The listed grants also include a recipient in Pennsylvania.
Grant Distribution by State
Share of 2025 grant dollars across all 10 itemized grants.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $13K (2020) to $23K (2025). In 2025 it made 10 grants totaling $23K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Asperger's Assoc of New England ($10K). Together the top 10 received $23K.
Grant Size Distribution
47 grants across all recorded years
The most common grant size was under $50K: 47 grants of 47 (100%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Asperger's Assoc of New England Watertown, MA | Charitable Contribution | $10,000 |
| Greater Boston Food Bank Boston, MA | Charitable Contribution | $5,000 |
| Friends of Karen North Salem, NY | Charitable Contribution | $2,000 |
| Fame Redding, CA | Charitable Contribution | $1,000 |
| St Luke Fund for Hati Miami, FL | Charitable Contribution | $1,000 |
| Quincea Scottsdale, AZ | Charitable Contribution | $1,000 |
| Washington Jefferson College Washington, PA | Charitable Contribution | $1,000 |
| Orange Co Jewish Community Scholar Irvine, CA | Charitable Contribution | $650 |
| Apollo Ensemble of Boston Boston, MA | Charitable Contribution | $500 |
| Ardsley Heart Corp Yonkers, NY | Charitable Contribution | $500 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Assets | Revenue | Expenses | Grants |
|---|---|---|---|---|
| 2025 | $683,883 | $257,101 | $24,255 | $22,650 (10 grants) |
| 2024 | $452,087 | $72,969 | $22,411 | $20,850 (9 grants) |
| 2023 | $402,175 | $71,446 | $17,725 | $16,250 (9 grants) |
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $683,883 | $452,087 | $402,175 |
| Revenue | $257,101 | $72,969 | $71,446 |
| Expenses | $24,255 | $22,411 | $17,725 |
| Qualifying Distributions | $22,650 | $20,850 | $16,250 |
| Net Investment Income | $197,101 | $72,969 | $46,446 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS May 9, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 10, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS July 11, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 2, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 7, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS July 3, 2026)
- IRS filings on file for fiscal years 2020–2024
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Janet Rosenberg as president and Seth Rosenberg as vice president.
Janet & Seth Rosenberg Foundation Inc is led by Janet Rosenberg, President on every filing since 2020; none of the 2 officers listed in 2025 report compensation.
Officers on the 2025 filing
Janet Rosenberg
President
On filings since 2020
No compensation reported
Seth Rosenberg
Vice President
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Contact
Mailing address: 100 Lansdowne St Apt 1509, Cambridge, MA 02139
Phone: (480) 248-8640
Frequently asked questions about Janet & Seth Rosenberg Foundation Inc
How much does Janet & Seth Rosenberg Foundation Inc give each year?
Janet & Seth Rosenberg Foundation Inc gave $23K across 10 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $21K across 9 grants.
What is Janet & Seth Rosenberg Foundation Inc's typical grant size?
Janet & Seth Rosenberg Foundation Inc's median grant in 2025 was $1,000, and its average grant was $2,265, across 10 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Janet & Seth Rosenberg Foundation Inc that year got $2K on average.
Where does Janet & Seth Rosenberg Foundation Inc give grants?
Janet & Seth Rosenberg Foundation Inc gives mostly in Massachusetts: 68% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were New York (11%) and California (7%). The most frequent recipient cities were Boston, MA (2 grants).
Who are Janet & Seth Rosenberg Foundation Inc's largest grantees?
Janet & Seth Rosenberg Foundation Inc's largest 2025 grantees include Asperger's Assoc of New England ($10,000), Greater Boston Food Bank ($5,000) and Friends of Karen ($2,000), according to its 2025 IRS Form 990-PF. Together they received 75% of its itemized 2025 grant dollars.
How large is Janet & Seth Rosenberg Foundation Inc?
Janet & Seth Rosenberg Foundation Inc reported $684K in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $257K.
What does Janet & Seth Rosenberg Foundation Inc fund?
No mission statement for the foundation is provided. Its 2025 grants show support for organizations with varied missions. The Greater Boston Food Bank describes its work as acquiring, sorting, and distributing food through member agencies and direct distribution sites. See mission & focus areas ↑
How do I apply for a grant from Janet & Seth Rosenberg Foundation Inc?
The foundation states that it 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 Janet & Seth Rosenberg Foundation Inc's EIN?
Janet & Seth Rosenberg Foundation Inc's EIN (Employer Identification Number) is 42-1529790. IRS Form 990 filing data is available on this page for 2020–2025.
Does Janet & Seth Rosenberg Foundation Inc 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.
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