Nonprofit · EIN 27-1509055
CORNERSTONE SECURITY FOUNDATION INC
Tax-exempt · RESTON, VA 20190
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $274,040 | $168,096 | $105,944 | $2,192,389 | $0 | $2,192,389 |
| December 31, 2024 | 990-PF | $145,993 | $241,358 | -$95,365 | $2,072,462 | $0 | $2,072,462 |
| December 31, 2023 | 990-PF | $286,999 | $166,687 | $120,312 | $2,168,520 | $0 | $2,168,520 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $120,500
- Dividends
- $66,122
- Net gain from sales of assets
- $87,286
- Other income
- $132
Expenses
- Grants and similar amounts paid
- $164,250
- Compensation of officers, directors and key employees
- $0
- Disbursements for charitable purposes
- $164,458
- Excise tax on investment income
- $2,105
Balance sheet and other
- Total assets, start of year
- $2,072,462
- Total assets, end of year
- $2,192,389
- Total liabilities, end of year
- $0
- Net assets, end of year
- $2,192,389
- Fair market value of assets
- $2,354,544
- Qualifying distributions
- $164,458
- Net investment income
- $153,540
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHARLES T QUILLIN JR 11654 PLAZA AMERICA DRIVE 500, RESTON, VA 20190 | PRESIDENT | 5 | $0 |
990-PF for the year ended December 31, 2024: 1 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHARLES T QUILLIN JR 11654 PLAZA AMERICA DRIVE 500, RESTON, VA 20190 | PRESIDENT | 5 | $0 |
990-PF for the year ended December 31, 2023: 1 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| CHARLES T QUILLIN JR 11654 PLAZA AMERICA DRIVE 500, RESTON, VA 20190 | PRESIDENT | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 11654 PLAZA AMERICA DRIVE 500, RESTON, VA 20190-4700
- In care of
- % CHARLES T QUILLIN JR
- Signed the 990-PF
- CHARLES T QUILLIN JR, PRESIDENT
- Phone
- (703) 623-4425
- Return prepared by
- BDO USA
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 27-1509055
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 2011
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T20)
- Assets (IRS master file)
- $2,192,389
- Income (IRS master file)
- $372,469
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $274,040 | $168,096 | $2,192,389 | IRS |
| 990-PF | December 2024 | $145,993 | $241,358 | $2,072,462 | XML |
| 990-PF | December 2023 | $286,999 | $166,687 | $2,168,520 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 27-1509055).
Questions about CORNERSTONE SECURITY FOUNDATION INC
- What is the EIN of CORNERSTONE SECURITY FOUNDATION INC?
- The employer identification number (EIN) of CORNERSTONE SECURITY FOUNDATION INC is 27-1509055.
- Is CORNERSTONE SECURITY FOUNDATION INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2011.
- Are donations to CORNERSTONE SECURITY FOUNDATION INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does CORNERSTONE SECURITY FOUNDATION INC file?
- Form 990-PF. Private foundations file every year.
- When is the next return of CORNERSTONE SECURITY FOUNDATION INC due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did CORNERSTONE SECURITY FOUNDATION INC last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of CORNERSTONE SECURITY FOUNDATION INC?
- The 990-PF for the year ended December 31, 2025 lists 1 person; 0 received compensation from the organization.
- How much revenue does CORNERSTONE SECURITY FOUNDATION INC have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $274,040, expenses of $168,096 and total assets of $2,192,389 at year end.
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All nonprofits in RESTON · Virginia · Philanthropy, voluntarism and grantmaking foundations