The Colleen & Sam Nunn Family Foundation
The Colleen & Sam Nunn Family Foundation is a private foundation based in Atlanta, Georgia. Its 2025 grants supported charitable organizations including universities, cultural and conservation organizations, and groups working in areas such as global security, health, and education.
Key facts about The Colleen & Sam Nunn Family Foundation
In short: The Colleen & Sam Nunn Family Foundation gave $274K across 46 grants in 2025 (avg $6K), mostly in Georgia. 39% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- EIN
- 58-6412814
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $273,875
- Grants made (2025)
- 46
- Average grant
- $5,954
- Median grant
- $1,000
- New grantees (estimate)
- 39% first-time grantees (18 of 46, 2025)
- Total assets
- $491,763
- Primary geography
- Georgia (74% of itemized 2025 grant dollars)
- Accepts unsolicited proposals
- No
- How to apply
- The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable organizations. Full details ↓
Data from IRS Form 990-PF, 2025; updated September 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
$492K
+22.3% YoY
Annual Giving
$274K
+74.5% YoY
Grant Count
46
-11.5% YoY
Avg Grant Size
$6K
+97.3% YoY
Under IRS private-foundation payout rules, The Colleen & Sam Nunn Family Foundation reported a distributable amount of $91K for 2025 — the minimum it must pay out in qualifying distributions.
Is The Colleen & Sam Nunn Family Foundation open to new grantees?
39%
first-time grantees, 2025
In 2025, 18 of 46 grantees (39%) were first-time recipients. First grants averaged $1K; repeat grants $9K. How we count
Medians: $1K first-time, $1K repeat.
- 48% of 2025 grantees were also funded in 2024. Method
- Giving grew 41% from 2022 to 2025. Method
- In 2025 it paid out 303% of its IRS minimum distribution (the 5% rule). 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.
Mission & Focus Areas
No mission statement for the foundation is provided. Its grants show support for a range of organizations. For example, the Nuclear Threat Initiative describes its work as reducing nuclear, biological, and emerging technology threats; the Atlanta Speech School says its mission is to bring deep reading to every child; and the Georgia-Alabama Land Trust describes its work as protecting conservation land and open space. These are the grantees’ descriptions of their own missions.
Grantmaking
In filing year 2025, the foundation made 46 grants totaling $273,875. Grants ranged from $250 to $101,000, with a median grant of $1,000. The largest grants included $101,000 to Georgia Tech Foundation, $29,500 to CARE USA, $27,200 to Skagit County Historical Museum, $26,000 to the UGA Foundation for the State Botanical Garden, and $25,000 to the Nuclear Threat Initiative. Other notable grants included $10,000 to Emory University for Emory Law School and $5,000 to MD Anderson Cancer Center.
How to Apply
The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable organizations.
Ready to take the next step with The Colleen & Sam Nunn Family Foundation?
Geographic Focus
Where this funder awards grants
In 2025, 74% of grant dollars went to recipients in Georgia, 11% to Washington, 11% to the District of Columbia, 2% to Texas, and 1% to Massachusetts.
Grant Distribution by State
Share of 2025 grant dollars across all 46 itemized grants.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $148K (2023) to $274K (2025). In 2025 it made 46 grants totaling $274K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Georgia Tech Foundation ($101K). Together the top 10 received $238K.
Grant Size Distribution
219 grants across all recorded years
The most common grant size was under $50K: 215 grants of 219 (98%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Georgia Tech Foundation Atlanta, GA | Charitable | $101,000 |
| Care USA Atlanta, GA | Charitable | $29,500 |
| Skagit County Historical Museum La Conner, WA | Charitable | $27,200 |
| UGA Foundation - State Botanical Garden Athens, GA | Charitable | $26,000 |
| Nuclear Threat Initiative Washington, DC | Charitable | $25,000 |
| Emory University for Emory Law School Atlanta, GA | Charitable | $10,000 |
| Georgia Tech Foundation-SNSIA Atlanta, GA | Charitable | $10,000 |
| Mdanderson Cancer Center Houston, TX | Charitable | $5,000 |
| Smithsonian American Women's Hist Museum Boston, MA | Charitable | $2,500 |
| Csis Washington, DC | Charitable | $2,125 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Grant total | Number of grants |
|---|---|---|
| 2025 | $273,875 | 46 |
| 2024 | $156,925 | 52 |
| 2023 | $147,850 | 39 |
The 2025 grants ranged from $250 to $101,000, with a median of $1,000.
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $491,763 | $402,013 | $445,427 |
| Revenue | $462,992 | $200,253 | $99,744 |
| Expenses | $279,921 | $161,145 | $154,353 |
| Qualifying Distributions | $275,392 | $158,380 | $149,190 |
| Net Investment Income | $357,332 | $129,988 | $44,581 |
| Distributable Amount | $90,885 | $62,333 | $42,633 |
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 10, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS March 29, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS April 4, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS April 5, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS March 28, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS March 26, 2026)
- IRS filings on file for fiscal years 2020–2025
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Sam A. Nunn Jr. as trustee and Colleen O’Brien Nunn and Mary Michelle Nunn as members of the distribution committee.
The Colleen & Sam Nunn Family Foundation's 2025 filing lists 3 officers; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Sam A. Nunn Jr.
Trustee
On filings since 2020
1 hr/week
No compensation reported
Colleen O'Brien Nunn
Distribution Committee
On filings since 2020
1 hr/week
No compensation reported
Mary Michelle Nunn
Distribution Committee
On filings since 2020
1 hr/week
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: 1180 Peachtree Street 1700, Atlanta, GA 30309-3521
Phone: (404) 572-4949
Frequently asked questions about The Colleen & Sam Nunn Family Foundation
How much does The Colleen & Sam Nunn Family Foundation give each year?
The Colleen & Sam Nunn Family Foundation gave $274K across 46 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $157K across 52 grants.
What is The Colleen & Sam Nunn Family Foundation's typical grant size?
The Colleen & Sam Nunn Family Foundation's median grant in 2025 was $1,000, and its average grant was $5,954, across 46 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Colleen & Sam Nunn Family Foundation that year got $1K on average.
Where does The Colleen & Sam Nunn Family Foundation give grants?
The Colleen & Sam Nunn Family Foundation gives mostly in Georgia: 74% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Washington (11%) and District of Columbia (11%). The most frequent recipient cities were Atlanta, GA (21 grants), Washington, DC (5 grants), Brunswick, GA (4 grants) and La Conner, WA (3 grants).
Does The Colleen & Sam Nunn Family Foundation give general operating support?
Not in 2025: none of the 46 grants with a stated purpose on The Colleen & Sam Nunn Family Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Charitable" (46 grants).
Who are The Colleen & Sam Nunn Family Foundation's largest grantees?
The Colleen & Sam Nunn Family Foundation's largest 2025 grantees include Georgia Tech Foundation ($101,000), Care USA ($29,500) and Skagit County Historical Museum ($27,200), according to its 2025 IRS Form 990-PF. Together they received 58% of its itemized 2025 grant dollars.
How large is The Colleen & Sam Nunn Family Foundation?
The Colleen & Sam Nunn Family Foundation reported $492K in total assets on its 2025 IRS Form 990-PF. It paid out $275K in qualifying distributions that year, against a required minimum of $91K (roughly 5% of its investment assets).
What does The Colleen & Sam Nunn Family Foundation fund?
No mission statement for the foundation is provided. Its grants show support for a range of organizations. See mission & focus areas ↑
How do I apply for a grant from The Colleen & Sam Nunn Family Foundation?
The foundation does not accept unsolicited requests for funds and states that it makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Colleen & Sam Nunn Family Foundation's EIN?
The Colleen & Sam Nunn Family Foundation's EIN (Employer Identification Number) is 58-6412814. IRS Form 990 filing data is available on this page for 2020–2025.
Does The Colleen & Sam Nunn Family 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.
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