Cornerstone Foundation Inc
Cornerstone Foundation Inc is a private foundation based in Washington, DC. Its 2024 filing reports 12 grants totaling $2,170,000 to charitable organizations, with each grant described as supporting charitable activities.
Cornerstone Foundation Inc at a glance
In short: Cornerstone Foundation Inc gave $2.2M across 12 grants in 2024 (avg $181K), mostly in District of Columbia. 25% of 2024 grantees were new. Source: 2024 IRS Form 990-PF.
- Annual giving (2024)
- $2,170,000
- +16.4% vs 2023
- Grants made (2024)
- 12
- +9.1% vs 2023
- Average grant
- $180,833
- +6.7% vs 2023
- Median grant
- $155,000
- Total assets
- $52,426,075
- +14.3% vs 2023
- New grantees (estimate)
- 25% first-time grantees (3 of 12, 2024; small sample)
- Primary geography
- District of Columbia (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 Cornerstone Foundation Inc
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation states that it does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 1828 L St Nw Suite 300, Washington, DC 20036
Phone: (202) 595-1070
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Cornerstone Foundation Inc funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
The largest 2024 recipient was Environmental Defense Fund ($350K). Together the top 10 received $2.0M.
Grant Size Distribution
54 grants across all recorded years
The most common grant size was in the $100–250K range: 28 grants of 54 (52%).
Geographic Focus
Where this funder awards grants
In 2024, grant dollars went to recipients in five states: 56% to Washington, DC; 16% to Maryland; 15% to New York; 7% to Pennsylvania; and 6% to California.
Grant Distribution by State
Share of 2024 grant dollars across all 12 itemized grants.
Cities
Is Cornerstone Foundation Inc open to new grantees?
25%
first-time grantees, 2024
In 2024, 3 of 12 grantees (25%) were first-time recipients. With only 12 grantees, that is a small sample: one grantee more or less moves the share by about 8 points. First grants averaged $117K; repeat grants $202K. How we count
Medians: $125K first-time, $200K repeat.
- 75% of 2024 grantees were also funded in 2023. Method
- Giving grew 32% from 2021 to 2024. Method
- In 2024 it paid out 94% 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 $1.6M (2020) to $2.2M (2024). In 2024 it made 12 grants totaling $2.2M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Environmental Defense Fund Washington, DC | Support Charitable Activities | $350,000 |
| Island Institute Rockland, MD | Support Charitable Activities | $340,000 |
| Teach for America Washington, DC | Support Charitable Activities | $240,000 |
| House of Ruth Washington, DC | Support Charitable Activities | $240,000 |
| Planned Parenthood Federation of America Inc New York, NY | Support Charitable Activities | $200,000 |
| Rock the Vote Washington, DC | Support Charitable Activities | $160,000 |
| The Posse Foundation Washington, DC | Support Charitable Activities | $150,000 |
| Children's Literacy Initiative Philadelphia, PA | Support Charitable Activities | $150,000 |
| William J Brennan Jr Center for Justice Inc New York, NY | Support Charitable Activities | $125,000 |
| Thurgood Marshall College Fund Washington, DC | Support Charitable Activities | $80,000 |
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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 | $52,426,075 | $8,972,306 | $2,420,295 | $2,170,000 | 12 | $2,316,528 | $8,898,557 | $2,468,628 |
| 2023 | $45,873,952 | $1,863,862 | $1,994,738 | $1,865,000 | 11 | $1,966,984 | $1,863,767 | $2,432,057 |
| 2022 | $46,004,828 | $8,592,794 | $1,814,662 | $1,700,000 | 11 | $1,793,679 | $1,592,699 | $2,343,795 |
| 2021 | $39,226,696 | $8,327,020 | $1,752,994 | $1,650,000 | 11 | $1,745,857 | $1,327,020 | $2,029,942 |
| 2020 | $32,652,670 | $6,151,911 | $1,779,734 | $1,637,500 | 9 | — | $1,151,911 | $1,664,150 |
Under IRS private-foundation payout rules, Cornerstone Foundation Inc reported a distributable amount of $2.5M 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 mission statement for the foundation is provided. Its 2024 grants include support for organizations whose own missions span several fields. For example, House of Ruth says it helps women, children, and families in need build safe, stable lives; Rock the Vote describes its work as building young people’s civic power through voter registration, education, and mobilization; and Children’s Literacy Initiative says it works with school leaders and teachers so children can become powerful readers, writers, and thinkers.
Other 2024 grantees describe work in reproductive and complementary health care (Planned Parenthood Federation of America), educational access and student leadership (Thurgood Marshall College Fund), and educational equity for low-income families through tuition assistance (The Basic Fund).
Grantmaking
In 2024, the foundation reported 12 grants totaling $2,170,000. Grant amounts ranged from $60,000 to $350,000, with a median of $155,000. The largest grants included $350,000 to Environmental Defense Fund, $340,000 to Island Institute, $240,000 each to Teach for America and House of Ruth, and $200,000 to Planned Parenthood Federation of America. Other grants included $160,000 to Rock the Vote, $150,000 each to The Posse Foundation and Children’s Literacy Initiative, and $125,000 to William J Brennan Jr Center for Justice Inc.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2024 filing lists Katherine Vogt as managing trustee; Martin Romo as treasurer; Emily Vogt as secretary; and Elizabeth Vogt and Lucy Vogt as trustees.
Cornerstone Foundation Inc is led by Katherine M. Vogt, Managing Trustee since 2024 (on filings since 2020); none of the 5 officers listed in 2024 report compensation.
Officers on the 2024 filing
Katherine M. Vogt
Managing Trustee
Treasurer → Managing Trustee, 2024
On filings since 2020
1 hr/week
No compensation reported
Elizabeth Vogt
Trustee
New on the 2024 filing
1 hr/week
No compensation reported
Lucy Vogt
Trustee
New on the 2024 filing
1 hr/week
No compensation reported
Martin Romo
Treasurer
Trustee → Treasurer, 2024
On filings since 2022
1 hr/week
No compensation reported
Emily Vogt
Secretary
New on the 2024 filing
1 hr/week
No compensation reported
Former officers (1)
- Former: Bradley J. Vogt (2020–2023) — President
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.
Frequently asked questions about Cornerstone Foundation Inc
How much does Cornerstone Foundation Inc give each year?
Cornerstone Foundation Inc gave $2.2M across 12 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $1.9M across 11 grants.
What is Cornerstone Foundation Inc's typical grant size?
Cornerstone Foundation Inc's median grant in 2024 was $155,000, and its average grant was $180,833, across 12 grants on its 2024 IRS Form 990-PF. Organizations receiving their first grant from Cornerstone Foundation Inc that year got $117K on average.
Where does Cornerstone Foundation Inc give grants?
Cornerstone Foundation Inc gives mostly in District of Columbia: 56% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were Maryland (16%) and New York (15%). The most frequent recipient cities were Washington, DC (6 grants) and New York, NY (2 grants).
Does Cornerstone Foundation Inc give general operating support?
Not in 2024: none of the 12 grants with a stated purpose on Cornerstone Foundation Inc's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Support Charitable Activities" (12 grants).
Who are Cornerstone Foundation Inc's largest grantees?
Cornerstone Foundation Inc's largest 2024 grantees include Environmental Defense Fund ($350,000), Island Institute ($340,000) and Teach for America ($240,000), according to its 2024 IRS Form 990-PF. Together they received 43% of its itemized 2024 grant dollars.
How large is Cornerstone Foundation Inc?
Cornerstone Foundation Inc reported $52.4M in total assets on its 2024 IRS Form 990-PF. It paid out $2.3M in qualifying distributions that year, against a required minimum of $2.5M (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 Cornerstone Foundation Inc fund?
No mission statement for the foundation is provided. Its 2024 grants include support for organizations whose own missions span several fields. See mission & focus areas ↑
How do I apply for a grant from Cornerstone Foundation Inc?
The foundation states that it does not accept unsolicited requests for funds and 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 Cornerstone Foundation Inc's EIN?
Cornerstone Foundation Inc's EIN (Employer Identification Number) is 11-3737220. IRS Form 990 filing data is available on this page for 2020–2024.
Does Cornerstone 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
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
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Cite this profile
Grantable. (2026). Cornerstone Foundation Inc funder profile. GrantGraph. Retrieved October 12, 2026, from https://grantable.co/funders/cornerstone-foundation-inc-morg_8a7443fe18ce47eb93c46b58a35c6f56
BibTeX
@misc{grantable_113737220_2026,
author = {{Grantable}},
title = {{Cornerstone Foundation Inc funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/cornerstone-foundation-inc-morg_8a7443fe18ce47eb93c46b58a35c6f56},
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 Cornerstone 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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