Open Foundations · District of Columbia

Richard Lounsbery Foundation Inc

Washington, District of Columbia · EIN 136081860. Its Form 990-PF says giving is not restricted to organizations picked in advance, which is how a private foundation files that it accepts unsolicited requests. It paid $3.8M across 56 grants in 2025, a median of $55K each.

All District of Columbia foundations · All states

$3.8M
paid in 2025
56
grants paid
$55K
median grant
77%
to first-time recipients
$22.1M
assets on file

How to apply, as filed

Straight off Part XV of the return. Where the foundation left a line blank, this says so rather than guessing.

Send requests to
L BROWN
Address
601 13TH ST NW STE 940N, WASHINGTON, DC, 20005
Phone
2028728080
Email
Not stated in the filing
Form the request should take
NO SPECIAL FORM IS REQUIRED FOR APPLICATION. APPLICATION IS TO BE MADE IN WRITING SETTING FORTH THE NEED, NATURE AND THE AMOUNT OF THE REQUEST PLUS A BUDGET JUSTIFYING THE AMOUNT REQUESTED. ALSO, THE ORGANIZATION'S IRS 501(C)(3) DETERMINATION LETTER AND RELEVANT EXHIBITS SHOULD BE INCLUDED, IF APPLICABLE.
Submission deadline
GRANT PROPOSALS SHOULD BE SUBMITTED TO THE FOUNDATION NO LATER THAN SIX WEEKS PRIOR TO THE FIRST OF
Restrictions on awards
GRANTS ARE MADE TO QUALIFYING ORGANIZATIONS ONLY AND NOT TO INDIVIDUALS.

As filed on the Form 990-PF for tax year 2025, IRS filing object id 202611329349104611. Printed word for word, including the entries that only say to see a website or an attachment.

What it funds, in its own words

The words that come up most often across the purposes it wrote on its 2025 grants. These are the foundation's own words, not a category we assigned.

rlf french-americanfrench-american fellowshiplaboratory argentinasciencebridgingscientificlafayetteunderstanding

Biggest grants in 2025

The 15 largest of the 56 grants paid in 2025, with the purpose the foundation wrote for each.

#RecipientStateAmountPurpose as filed
1Biobus IncNY$200,000LAUNCHING BIOBUS'S MOBILE SCIENCE LABS IN NEW ENGLAND
2The Halo Trust (usa) IncDC$199,525NEXT-GENERATION DETECTION AND THE APPLICATION OF MACHINE LEARNING TO LANDMINE CLEARANCE
3Friends of Ecole Normale SuperieureMD$175,230BRIDGING COMPUTATIONAL GAPS TO TACKLE EPIDEMIC SPREAD
4President and Fellows of Middlebury College James Martin Center for NonprolVT$150,000BUILDING GLOBAL NUCLEAR SECURITY EXPERTISE:THE CNS VISITING FELLOWS PROGRAM
5Resources for the FutureDC$140,000LOWERING EXPECTATIONS OF THE SIZE OF HUMAN POPULATION
6National Academy of SciencesDC$131,165RICHARD LOUNSBERY AWARD
7Academie Des Sciences Institut De Francen/a$130,000FROM ENLIGHTENMENT TO AI: 250 YEARS OF SCIENTIFIC REVOLUTIONS ACROSS THE ATLANTIC PODCAST SERIES
8Albertine FoundationNY$125,000LAFAYETTE FELLOWSHIP
9Board of Trustees of the Leland Stanford Junior UniversityCA$125,000RLF FRENCH-AMERICAN FELLOWSHIP, DR. A. LAUDRAIN
10Friends of Cs IncNY$125,000CELEBRATING AMERICA'S 250TH WITH SCHOLARSHIPS TO STUDY AT U.S. UNIVERSITIES
11Institut Du Cerveau Et De La Moelle Epinieren/a$125,000RLF FRENCH-AMERICAN FELLOWSHIP, DR. A. LEVINE
12The University of Alabamam Alabama Water InstituteAL$125,000DETERMINING NEEDS TO BUILD THE NORTHERN GULF OF AMERICA COASTAL OBSERVATORY
13Universite Grenoble Alpesn/a$125,000RLF FRENCH-AMERICAN FELLOWSHIP, DR. A. LOOBY
14Academie Des Sciences Institut De Francen/a$105,000EXHIBITION ON MODERN MICROBIOLOGY AT LOUIS PASTEURS HOUSE IN ARBOIS, FRANCE
15International Documentary AssociationCA$100,000DOCUMENTARY: BRIDGING OPPENHEIMER'S VISION OF GLOBAL COOPERATION THROUGH FILM

Giving by year, and who received it

Grants paid by year

Every year of this foundation's grants that Civly holds
Tax yearGrantsPaid
202063$3.3M
202154$3.6M
202257$3.6M
202353$3.9M
202454$4.0M
2025 (partial year)56$3.8M

Where the money went

Share of 2025 grant dollars by recipient state
New York34%
District of Columbia20%
??13%
Massachusetts7%
California5%

Who decides

Officers, directors and trustees as filed, with the year of the return they appeared on.

Catherine DulacDIRECTOR · 2025
Claire E MaxDIRECTOR · 2025
David D SabatiniDIRECTOR · 2025
Elizabeth Holleman BrownEXECUTIVE DIRECTOR & CORPORATE SCTY · 2025
Jesse H AusubelCHAIRMAN · 2025
June YearwoodTREASURER · 2025
Maxmillian Angerholzer IiiDIRECTOR · 2025
Michael J ShelleyDIRECTOR · 2025
Richard J MchenryDIRECTOR · 2025
Rose E GottemoellerVICE CHAIR · 2025

Every figure on this page is that foundation's own latest filed year, which is 2022 or later. This foundation is listed because its Form 990-PF says it does not restrict giving to preselected organizations and it paid at least 5 grants totaling $100K or more that year. Latest-year grants and terms per foundation from IRS 990-PF e-file returns; the newest tax year is partial until the IRS finishes releasing it. Grants are de-duplicated on funder, year, recipient and amount, so identical repeat grants collapse into one and totals can run low. Full method.

Source: IRS Form 990-PF e-file releases (public domain). Analysis: Civly.

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