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Foundations / Missouri

Trio Foundation of St Louis

Accepts applications St Louis, Missouri · EIN 431553538

Trio Foundation of St Louis is a private foundation in St Louis, Missouri. In tax year 2025 it gave $1.9 million in 100 grants; the typical grant was $22,500 and the largest $50,000. It accepts applications; its filing gives the instructions below.

From its IRS Form 990-PF for tax year 2025.

Giving in 2025 was up from $1.7 million the year before.

30% of its 2025 grantees had not received a grant from it the year before, a mix of repeat and new grantees.

Giving by year

Tax yearGrants paidNumber of grantsAssets
2023$1.7 million115$32.8 million
2024$1.7 million91$34.4 million
2025$1.9 million100$36.9 million

How to apply

ContactTriostlorg
Online Application to Be Completed, See - Wwwtriostlorg, PO Box, MO 63117
Phone or email(314) 725-3040, trio@triostl.org
What to submitThe foundation has guidelines that must be followed and an online application form that must be completed to receive a grant. The foundation guidelines and application may be found at "www.triostl.org". Inquiries may be directed to marissa rosen, program officer, marissa@triostl.org.
DeadlinesFor fiscal year 2026, the deadline is september 4, 2026.
RestrictionsThe foundation's grantmaking focus is in the st. Louis region. The foundation does not fund scientific or medical research. The foundation is not generally interested in supporting the production of videos, conferences, seminars, feasibility studies, routine technology expenses, event sponsorship, charter schools, or the development of strategic plans. For more details pelase visit www.triostl.org.

As written in the foundation's IRS filing for tax year 2025. Details may have changed since.

IRS filings on ProPublica

What Trio Foundation of St Louis funds

Where it gives

Its grants went to recipients in 12 states, the most to Missouri.

StateGrantsAmount
Missouri78$1.7 million
Georgia2$35,000
Tennessee1$25,000
California3$20,000
Florida3$20,000
New York3$15,000
Oregon3$15,000
Virginia1$15,000
Texas3$10,000
Arizona1$10,000

Grants paid in 2025

The 40 largest of 100 grants
RecipientPurposeAmount
Seed St Louis
St Louis, MO
Cultivating st. Louis$50,000
Planned Parenthood Great Rivers
St Louis, MO
General operating support$45,000
Boys & Girls Clubs of Greater St Louis
St Louis, MO
Workforce development: preparing disadvantaged teens to thrive as adults$30,000
Lifewise STL
St Louis, MO
Women's financial wellbeing$30,000
Archcity Defenders
St Louis, MO
General operating support$25,000
Beyond Housing
Pine Lawn, MO
Beyond housing's youth programs$25,000
Black Girls Do STEM
St Louis, MO
Black girls do STEM general operating support$25,000
Cinema St Louis
St Louis, MO
Capital grant for purchase of hi pointe theater$25,000
Coca - Center of Creative Arts
St Louis, MO
General operating support$25,000
Contemporary Art Museum St Louis
St Louis, MO
General operating support$25,000
Craft Alliance Center
St Louis, MO
General operating support$25,000
Crown Center for Senior Living
St Louis, MO
Community living center$25,000
Donald Danforth Plant Science Center
St Louis, MO
Building a diverse and inclusive STEM workforce$25,000
Ducks Unlimited
Memphis, TN
Confluence conservation easement program: protecting st. Louis area floodplain wetlands$25,000
Earth University
Atlanta, GA
Earth scholarship fund$25,000
Earthdance Organic Farm School
Ferguson, MO
General operating support$25,000
EARTHDAY365
St Louis, MO
General operating support$25,000
Flance Early Learning Center
St Louis, MO
General operating support$25,000
Forest Park Forever
St Louis, MO
Capital campaign support for imagine the glade$25,000
Grand Center
St Louis, MO
Capital campaign$25,000
Great Rivers Environmental Law Center
St Louis, MO
General operating support$25,000
Haven of Grace
St Louis, MO
General operating fund$25,000
Jazz St Louis
St Louis, MO
General operating support$25,000
Jewish Community Center
St Louis, MO
Adult day at the j$25,000
Jewish Family Services
St Louis, MO
Harvey kornblum jewish food pantry$25,000
Jewish Federation of St Louis
St Louis, MO
Nutrition for older adults$25,000
Laumeier Sculpture Park
St Louis, MO
General operating support$25,000
Launchcode Foundation
St Louis, MO
General operating support$25,000
Legal Services of Eastern Mo
St Louis, MO
Microenterprise program$25,000
Magic House St Louis Children's Museum
St Louis, MO
The magic house, made for kids$25,000
Marian Middle School
St Louis, MO
General operating support$25,000
Metro Theater Company
St Louis, MO
General operating support$25,000
Migrant and Immigrant Community Action Project
St Louis, MO
General operating support$25,000
Mildred Lane Kemper Art Museum
St Louis, MO
Art access$25,000
Missouri Botanical Garden
St Louis, MO
Biodiversecity st. Louis$25,000
Missouri History Museum
St Louis, MO
We are st. Louis campaign$25,000
National Council of Jewish Women
St Louis, MO
Capital campaign$25,000
Open Space Council STL
St Louis, MO
Land trust program$25,000
Rung for Women
St Louis, MO
Financial assistance & education for st. Louis women$25,000
Southside Early Childhood Center
St Louis, MO
General operating support$25,000

Officers and trustees

As listed in Part VIII of the 2025 filing.

Questions people ask

Does Trio Foundation of St Louis accept grant applications?

Yes. Its latest IRS filing says it accepts applications, with this on deadlines: For fiscal year 2026, the deadline is september 4, 2026..

How much does Trio Foundation of St Louis give?

$1.9 million in tax year 2025, across 100 grants, with a typical grant of $22,500.

Who runs Trio Foundation of St Louis?

Its 2025 filing lists Marissa Berkow Rosen (Executive Director), Terri S Mason (President), William L Nussbaum Jr (Vice President/Treasurer) and Mary B Moog (Secretary/Assistant Treasurer) among 9 officers and trustees.

What does Trio Foundation of St Louis fund?

Based on its grants, mainly arts and culture, education and environment and conservation.

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