Nathan & Marlene Addlestone Foundation Inc
Nathan & Marlene Addlestone Foundation Inc is a private foundation based in Charleston, South Carolina. Its 2025 filing lists grants to charitable organizations, including education and community organizations in South Carolina and several other states.
Nathan & Marlene Addlestone Foundation Inc at a glance
In short: Nathan & Marlene Addlestone Foundation Inc gave $67K across 30 grants in 2025 (avg $2K), mostly in South Carolina. 13% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $67,225
- -4.0% vs 2024
- Grants made (2025)
- 30
- +7.1% vs 2024
- Average grant
- $2,241
- -10.4% vs 2024
- Median grant
- $1,750
- Total assets
- $1,292,801
- -2.6% vs 2024
- New grantees (estimate)
- 13% first-time grantees (4 of 30, 2025)
- Primary geography
- South Carolina (80% 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 Nathan & Marlene Addlestone Foundation Inc
- 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.
- Contact
Mailing address: 815 Savannah Hwy, Charleston, SC 29407
Phone: (843) 577-9300
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Nathan & Marlene Addlestone Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Jewish Endowment Foundation ($10K). Together the top 10 received $41K.
Grant Size Distribution
144 grants across all recorded years
The most common grant size was under $50K: 144 grants of 144 (100%).
Geographic Focus
Where this funder awards grants
In 2025, 80% of grant dollars went to organizations in South Carolina. The remaining reported shares went to Illinois (5%), Connecticut (5%), Michigan (3%), and New York (3%).
Grant Distribution by State
Share of 2025 grant dollars across all 30 itemized grants.
Cities
Is Nathan & Marlene Addlestone Foundation Inc open to new grantees?
13%
first-time grantees, 2025
In 2025, 4 of 30 grantees (13%) were first-time recipients. First grants averaged $2K; repeat grants $2K. How we count
Medians: $2K first-time, $2K repeat.
- 83% of 2025 grantees were also funded in 2024. Method
- Giving grew 30% from 2022 to 2025. 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 (2020–2025). 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 2020 to 2025, annual grant giving ranged from $38K (2020) to $70K (2024). In 2025 it made 30 grants totaling $67K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Jewish Endowment Foundation Charleston, SC | Support of Education | $10,000 |
| Trident Technical College North Charleston, SC | Support of Education | $6,500 |
| Trident Literacy Association N Charleston, SC | Support of Education | $5,000 |
| American Lung Association Chicago, IL | Support of Community | $3,600 |
| Temple Israel Westport Westport, CT | Support of Community | $3,125 |
| Charleston Jewish Federation Charleston, SC | Support of Community | $2,500 |
| College of Charleston Nuovo Cinema Charleston, SC | Support of Education | $2,500 |
| Lowcountry Local First Charleston, SC | Support of Education | $2,500 |
| Charles Webb Center Charleston, SC | Support for Education | $2,500 |
| Kids on Point Charleston, SC | Support of Community | $2,500 |
Ready to take the next step with Nathan & Marlene Addlestone Foundation Inc?
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 | $1,292,801 | $50,882 | $84,328 | $67,225 | 30 | $67,225 | $69,033 | $70,901 |
| 2024 | $1,327,211 | $65,926 | $85,095 | $70,050 | 28 | $69,050 | $66,595 | $69,593 |
| 2023 | $1,347,736 | $41,793 | $78,352 | $63,350 | 31 | $62,650 | $50,248 | $66,256 |
| 2022 | $1,384,857 | $28,000 | $61,741 | $51,575 | 28 | $46,075 | $36,036 | $67,893 |
| 2021 | $1,418,598 | $243,051 | $78,852 | $60,450 | 27 | $60,450 | $64,984 | $74,673 |
| 2020 | $1,254,399 | $38,421 | $53,235 | $37,575 | 22 | — | $27,099 | $66,374 |
Under IRS private-foundation payout rules, Nathan & Marlene Addlestone Foundation Inc reported a distributable amount of $71K 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 include support for education, community, and Jewish charities. The grantees describe their work in varied ways: Trident Literacy Association says it works to eliminate adult illiteracy and interrupt generational poverty in the Charleston tri-county region; Charleston Jewish Federation says it builds, secures, and sustains Jewish life; and Lowcountry Local First says it advances economic prosperity and local ownership.
Other supported organizations describe work in youth opportunity and enrichment (Kids on Point), lung health and disease prevention (American Lung Association), community philanthropy in Genesee County (Community Foundation of Greater Flint), student development (Charleston Day School), and meal delivery for people facing serious health challenges (AMOR Healing Kitchen).
Grantmaking
In 2025, the foundation reported 30 grants totaling $67,225. Grants ranged from $500 to $10,000, with a median of $1,750. The largest grants included $10,000 to Jewish Endowment Foundation for education, $6,500 to Trident Technical College for education, and $5,000 to Trident Literacy Association for education. Other notable grants included $3,600 to American Lung Association for community support; $2,500 each to Charleston Jewish Federation, College of Charleston Nuovo Cinema, Lowcountry Local First, Charles Webb Center, and Kids on Point; and $2,350 to Congregation Dor Tikvah for Jewish charities.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Marlene Addlestone Bursten as president, Susan Addlestone as vice-president, and Edward Kronsberg as secretary/treasurer.
Nathan & Marlene Addlestone Foundation Inc is led by Marlene Addlestone Bursten, President on every filing since 2020; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Marlene Addlestone Bursten
President
On filings since 2020
No compensation reported
Edward Kronsberg
Secretary & Treasurer
On filings since 2020
1 hr/week
No compensation reported
Susan Addlestone
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.
Frequently asked questions about Nathan & Marlene Addlestone Foundation Inc
How much does Nathan & Marlene Addlestone Foundation Inc give each year?
Nathan & Marlene Addlestone Foundation Inc gave $67K across 30 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $70K across 28 grants.
What is Nathan & Marlene Addlestone Foundation Inc's typical grant size?
Nathan & Marlene Addlestone Foundation Inc's median grant in 2025 was $1,750, and its average grant was $2,241, across 30 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Nathan & Marlene Addlestone Foundation Inc that year got $2K on average.
Where does Nathan & Marlene Addlestone Foundation Inc give grants?
Nathan & Marlene Addlestone Foundation Inc gives mostly in South Carolina: 80% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Illinois (5%). The most frequent recipient cities were Charleston, SC (16 grants), North Charleston, SC (2 grants), N Charleston, SC (2 grants) and Johns Island, SC (2 grants).
Does Nathan & Marlene Addlestone Foundation Inc give general operating support?
Not in 2025: none of the 30 grants with a stated purpose on Nathan & Marlene Addlestone Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Support of Community" (12 grants), "Support of Education" (11 grants) and "Support for Education" (5 grants).
Who are Nathan & Marlene Addlestone Foundation Inc's largest grantees?
Nathan & Marlene Addlestone Foundation Inc's largest 2025 grantees include Jewish Endowment Foundation ($10,000), Trident Technical College ($6,500) and Trident Literacy Association ($5,000), according to its 2025 IRS Form 990-PF. Together they received 32% of its itemized 2025 grant dollars.
How large is Nathan & Marlene Addlestone Foundation Inc?
Nathan & Marlene Addlestone Foundation Inc reported $1.3M in total assets on its 2025 IRS Form 990-PF. It paid out $67K in qualifying distributions that year, against a required minimum of $71K (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 Nathan & Marlene Addlestone Foundation Inc fund?
No mission statement for the foundation is provided. Its 2025 grants include support for education, community, and Jewish charities. See mission & focus areas ↑
How do I apply for a grant from Nathan & Marlene Addlestone 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 Nathan & Marlene Addlestone Foundation Inc's EIN?
Nathan & Marlene Addlestone Foundation Inc's EIN (Employer Identification Number) is 57-0697712. IRS Form 990 filing data is available on this page for 2020–2025.
Does Nathan & Marlene Addlestone 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.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS May 17, 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 11, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 13, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS April 23, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
Live grants for the work Nathan & Marlene Addlestone Foundation Inc funds
Education Open opportunities, soonest deadline first.
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Browse active grant opportunities in Nathan & Marlene Addlestone Foundation Inc's focus areas in our free grants database
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Cite this profile
Grantable. (2026). Nathan & Marlene Addlestone Foundation Inc funder profile. GrantGraph. Retrieved October 18, 2026, from https://grantable.co/funders/nathan-and-marlene-addlestone-foundation-inc-morg_3825138be05045138ded14d0eb982185
BibTeX
@misc{grantable_570697712_2026,
author = {{Grantable}},
title = {{Nathan \& Marlene Addlestone Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/nathan-and-marlene-addlestone-foundation-inc-morg_3825138be05045138ded14d0eb982185},
note = {Accessed 2026-10-18. 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 Nathan & Marlene Addlestone Foundation Inc'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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