Glenstone Foundation
12100 Glen Rd, Potomac, MD · IRS data through FY2023
Revenue, expenses and net assets
Revenue Expenses Net assets
| Tax year | Revenue | Expenses | Net assets |
|---|---|---|---|
| FY2023 | $266,804,717 | $51,950,857 | $2,742,955,489 |
| FY2022 | $132,610,613 | $44,935,436 | $2,577,746,647 |
| FY2021 | $1,895,507,815 | $43,236,693 | $2,552,109,185 |
| FY2020 | $596,667,510 | $45,366,231 | $2,206,404,996 |
| FY2019 | $370,037,724 | $36,359,265 | $1,935,317,427 |
| FY2015 | $510,714,990 | $11,612,324 | $1,259,285,320 |
| FY2014 | $434,244,213 | $6,274,223 | $1,013,886,192 |
| FY2013 | $399,868,661 | $6,615,107 | $801,452,653 |
| FY2012 | $255,152,094 | $4,143,134 | $629,894,848 |
| FY2011 | $233,180,526 | $3,856,361 | $480,090,488 |
Form 990 filings
The returns filed by Glenstone Foundation (EIN 20-5938416), including Form 990-PF PDFs and e-file data by year, are available in ProPublica's Nonprofit Explorer. The figures on this page come from IRS data files built from those returns.
Where the revenue came from
| Source | Amount | % of revenue |
|---|---|---|
| Contributions & grants | $41,502,862 | 16% |
| Other revenue | $225,301,855 | 84% |
Grants paid
Total contributions, gifts and grants paid by year, as reported on Form 990-PF. Individual recipients are not published. See private foundations in MD. See the largest grantmakers.
| Tax year | Grants paid |
|---|---|
| FY2023 | $2,824,691 |
| FY2022 | $6,320,299 |
| FY2021 | $8,510,012 |
| FY2020 | $5,280,455 |
| FY2019 | $544,607 |
| FY2015 | $852,098 |
| FY2014 | $227,500 |
| FY2013 | $121,000 |
| FY2012 | $185,500 |
| FY2011 | $266,000 |
What the numbers show
- Other revenue made up 84% of total revenue in FY2023.
- Net assets covered about 633.6 months of expenses at the end of the reporting year. That puts it in the 98th percentile among 654 Arts, Culture & Humanities organizations in MD.
- Total revenue was the highest among 668 Arts, Culture & Humanities organizations in MD.
- Total revenue rose from $233,180,526 in FY2011 to $266,804,717 in FY2023. Revenue increased in 7 and decreased in 2 of 9 year-over-year comparisons.
- Revenue covered expenses in each of the 10 reported years, FY2011 to FY2023.
- The highest revenue on record here is $1,895,507,815 in FY2021.
- Net assets grew from $480,090,488 to $2,742,955,489 between FY2011 and FY2023.
- Contributions and grants made up 50% of revenue in FY2011 and 16% in FY2023.
- Listed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (private operating foundation).
Figures compared against other organizations of the same NTEE program area in the same state. See the methodology page for how these are calculated and the guide to reading nonprofit financials for their limits.
IRS status
| Ruling year | 2007 |
| Subsection | 501(c)(3) |
| Classification | Private foundation |
| Program area (NTEE) | A40 — Arts, Culture & Humanities |
| Donations | Listed in the IRS Publication 78 data as eligible to receive tax-deductible contributions (private operating foundation). |
Similar organizations
- National Gallery of Art — Landover, MD · $382,850,886
- Baltimore Museum of Art Inc — Baltimore, MD · $31,764,477
Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded November 4, 2026), Statistics of Income extracts, Form 990 e-file data, Publication 78 and the Automatic Revocation list. Figures are as reported by the organization; IRS processing may adjust them. This is not a charity rating and not tax advice. Confirm deductibility in IRS Tax Exempt Organization Search.
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