Updated Oct 31, 2026
Private foundations based in Gaithersburg, Maryland
7 grantmaking foundations headquartered in Gaithersburg, Maryland, holding $335M in assets. Ranked by grants paid in their latest 990-PF; 2 on this page say they accept applications. For foundations ranked by where their grants went, see local funders.
| Foundation | Grants paid | Median grant | Accepts applications | Assets |
|---|---|---|---|---|
| Eugene B Casey Foundationsince 1983 | $4.9M28 grants · 2024 | $50K | Preselected only | $286M |
| The Richard Eaton Foundation Incsince 1970 | $805K1 grants · 2024 | $805K | Preselected only | $20M |
| David & Margery Inkeles Charitable Foundationsince 1998 | $541K26 grants · 2025 | $3,000 | Yes | $11M |
| Pettit Family Charitable Foundationsince 1990 | $250K46 grants · 2025 | $4,250 | Yes | $5.4M |
| Huiying Memorial Foundationsince 2017 | $156K7 grants · 2024 | $25K | Preselected only | $10M |
| Diamond Mind Foundationsince 2016 | $106K20 grants · 2024 | $2,687 | Preselected only | $1.8M |
| Friends of Wells-Robertson House Incsince 1994 | — | — | Preselected only | $1.2M |
Sources: IRS Business Master File (assets), ProPublica Nonprofit Explorer and IRS 990-PF e-file (grants paid, application policy). "Accepts applications" reflects the foundation's own Part XV checkbox.
Open grant programs in Maryland
All 2| Deadline | Grant | Funder | Award ceiling |
|---|---|---|---|
| Rollingno deadline | Maryland State Arts Council — Organizational GrantsStateMaryland State Arts Council | Maryland State Arts Council | Not listed |
| Rollingno deadline | Maryland Humanities — Humanities GrantsStateMaryland Humanities | Maryland Humanities | Not listed |
Common questions
How many private foundations are based in Gaithersburg, Maryland?
Our directory lists 7 private grantmaking foundations in Gaithersburg, Maryland with at least $1 million in assets, holding a combined $335M. The data comes from the IRS Exempt Organizations Business Master File and Form 990-PF.
How do I get a grant from a private foundation?
Start with foundations that already fund organizations like yours nearby. Read the grantee list on each profile, check whether the foundation accepts applications (it says so on its 990-PF), and lead with a short letter of inquiry. Many family foundations fund only organizations they already know; an introduction through a shared grantee or board member works better than a cold proposal.
Can you help us approach foundations?
Yes. Our grant writers research foundation prospects, write letters of inquiry, and build a foundation fundraising plan. Request a free consultation.