Mrb Foundation Inc
Lake Geneva, WI · EIN 36-3920061. Reported 626 grants totalling $7,288,000 to 187 recipients across tax years 2021-2025. This foundation told the IRS it does not accept unsolicited requests: it contributes only to organizations it selects itself.
Does this foundation accept applications?
No -- on its own tax return. Form 990-PF asks every private foundation to check a box if it "only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds". Mrb Foundation Inc checked it on its most recent filing, as 78% of the 91,758 foundations in our data that made a grant and answered did. An unsolicited request is unlikely to go anywhere.
Organizations it funds that make grants of their own
3 of the organizations Mrb Foundation Inc funded make grants themselves, and it reported 10 grants totalling $37,000 to them. That is 1% of the $6,513,500 of its giving we could match to a registered organization. Each is classified by the IRS as a philanthropy or grantmaking organization, reported grants to at least 25 organizations of its own, and has at least 10 funders behind it.
All of them file Form 990, which never asks whether an organization funds only groups it picks, so there is no answer on record either way.
What that does not mean. It does not mean an application to any of them reaches this foundation's money. A private foundation's grant to a community foundation or a federated campaign is often a donor-advised fund or a gift designated for a purpose the foundation chose, and has nothing to do with any open programme the receiving organization runs. Its return's purpose text sometimes names a family fund or a designated purpose, which is the plainest case of money no applicant can reach; where it names none, neither return says which. The list is who this foundation paid that also makes grants. Whether any of them would fund you is a question for its own page.
| Grantmaker | Kind | State | Received | Grants | Years | Last | Only funds organizations it picks? |
|---|---|---|---|---|---|---|---|
| Hobe Sound Community Chest Inc | federated giving programme | Florida | $16,000 | 3 | 3 | 2023 | Its form does not ask |
| Aspen Community Foundation | community foundation | Colorado | $12,000 | 2 | 2 | 2025 | Its form does not ask |
| Greater Cedar Rapids Community | community foundation | Iowa | $9,000 | 5 | 4 | 2024 | Its form does not ask |
A floor, not a full list. A grantmaker appears here only where this foundation's return named it clearly enough for us to match the name to an EIN, which we manage for about two thirds of 990-PF grant rows, and only where that grantmaker has a page on this site. There may be more. Dollars here are summed by EIN across every spelling on its returns, so a figure can differ from the matching row in the full list below, which groups names as written. And the IRS classification cannot tell a grantmaker from a funders' association or a donor-advised fund sponsor, so a payment to one of these may be dues or an account rather than support for a grants programme.
How big are its grants?
The median grant is $5,000. Half of everything it gave fell between $2,000 and $10,000; the smallest was $1,000 and the largest $170,000.
Every organization it funded
This is the complete list from its filings, largest first. Recipients are grouped by name and state as they were written on the returns, so an organization entered under two different names appears twice. Years funded is the number of separate tax years in which that name received money.
| Organization | Location | Total received | Grants | Years funded | Last |
|---|---|---|---|---|---|
| John G Shedd Aquarium | Chicago, IL | $489,000 | 8 | 5 | 2025 |
| The Nature Conservancy | Arlington, VA | $444,000 | 22 | 5 | 2025 |
| The Nature Conservancy | Boulder, CO | $320,000 | 2 | 2 | 2025 |
| World Wildlife Fund Inc | Washington, DC | $315,000 | 13 | 5 | 2025 |
| Hillside Learning Center | Longmont, CO | $295,250 | 2 | 2 | 2025 |
| The Frederick Gunn School | Washington, CT | $235,000 | 2 | 2 | 2023 |
| Wave Hill Inc | Bronx, NY | $180,000 | 5 | 5 | 2025 |
| Earthjustice | San Francisco, CA | $151,000 | 4 | 4 | 2024 |
| Everytown for Gun Safety Support Fund Inc | New York, NY | $150,000 | 19 | 5 | 2025 |
| Grand Teton National Park Foundation | Moose, WY | $150,000 | 4 | 4 | 2024 |
| Riverdale Neighborhood House Inc | Bronx, NY | $145,000 | 5 | 5 | 2025 |
| The Posse Foundation Inc | New York, NY | $125,000 | 5 | 5 | 2025 |
| Savannah Country Day School Inc | Savannah, GA | $123,000 | 6 | 5 | 2025 |
| Rush University Medical Center | Chicago, IL | $120,000 | 4 | 4 | 2024 |
| The Dian Fossey Gorilla Fund International | Atlanta, GA | $115,000 | 5 | 5 | 2025 |
| Lake Forest Library Foundation | Lake Forest, IL | $110,000 | 1 | 1 | 2025 |
| University of Colorado Foundation | Denver, CO | $103,000 | 3 | 3 | 2025 |
| Chicago Zoological Society | Brookfield, IL | $100,000 | 1 | 1 | 2022 |
| People for the Ethical Treatment of Animals Inc | Norfolk, VA | $100,000 | 4 | 4 | 2025 |
| Palestine Childrens Relief Fund | Kent, OH | $95,000 | 3 | 3 | 2023 |
| Rocky Mountain Institute | Boulder, CO | $92,000 | 5 | 5 | 2025 |
| Marin Agricultural Land Trust | Point Reyes Station, CA | $88,000 | 5 | 5 | 2025 |
| Alexander Dawson Foundation | Lafayette, CO | $85,000 | 4 | 4 | 2024 |
| Yale University | New Haven, CT | $82,000 | 6 | 4 | 2024 |
| Earthjustice | Washington, DC | $80,000 | 1 | 1 | 2025 |
| Wildlife Conservation International | Austin, TX | $79,000 | 5 | 5 | 2025 |
| Planned Parenthood of Greater New York Inc | New York, NY | $75,000 | 11 | 5 | 2025 |
| Project Hope | Washington, DC | $75,000 | 6 | 3 | 2024 |
| Trust for Public Land | San Francisco, CA | $75,000 | 5 | 5 | 2025 |
| Northwestern Memorial Foundation | Chicago, IL | $70,500 | 3 | 3 | 2023 |
| High Atlas Foundation | New York, NY | $70,000 | 1 | 1 | 2025 |
| Lake Forest Open Lands Association | Lake Forest, IL | $65,500 | 3 | 3 | 2023 |
| The Everglades Foundation Inc | Palmetto Bay, FL | $65,000 | 3 | 3 | 2023 |
| The International Thyroid Cancer Study Group Inc | Yorkville, NY | $60,000 | 5 | 5 | 2025 |
| Marin Academy | San Rafael, CA | $55,000 | 5 | 5 | 2025 |
| Sheldrick Wildlife Trust USA | Laguna Hills, CA | $53,000 | 6 | 4 | 2025 |
| Duke University | Durham, NC | $52,000 | 5 | 5 | 2025 |
| Oceana Inc | Washington, DC | $51,000 | 5 | 5 | 2025 |
| Feeding America | Washington, DC | $50,000 | 3 | 3 | 2024 |
| Palestine Children's Relief Fund | Los Angeles, CA | $50,000 | 1 | 1 | 2025 |
| Peninsula Open Space Trust | Palo Alto, CA | $50,000 | 5 | 5 | 2025 |
| World Central Kitchen Inc | Washington, DC | $50,000 | 7 | 4 | 2025 |
| National Public Radio Inc | Washington, DC | $49,000 | 5 | 5 | 2025 |
| Sonoma Land Trust | Santa Rosa, CA | $45,000 | 5 | 5 | 2025 |
| The Colorado College | Colorado Springs, CO | $45,000 | 5 | 5 | 2025 |
| Mayo Clinic | Jacksonville, FL | $40,000 | 4 | 4 | 2024 |
| Palestine Children's Relief Fund | Kent, OH | $40,000 | 1 | 1 | 2024 |
| Sierra Watch | Nevada City, CA | $40,000 | 4 | 4 | 2025 |
| Point O'woods Foundation Inc | Bay Shore, NY | $38,000 | 5 | 5 | 2025 |
| The Global Giving Foundation | Washington, DC | $35,000 | 1 | 1 | 2025 |
| Boys and Girls Club of Martin County Inc | Hobe Sound, FL | $33,000 | 3 | 3 | 2023 |
| Northeast Wisconsin Land Trust | Appleton, WI | $33,000 | 5 | 5 | 2025 |
| Skidmore College | Saratoga Springs, NY | $32,000 | 4 | 4 | 2025 |
| Autism Speaks Inc | Boone, IA | $30,000 | 3 | 3 | 2025 |
| California Polytechnic State University Foundation | San Luis Obispo, CA | $30,000 | 3 | 3 | 2025 |
| Cape Eleuthera Foundation Inc | Philadelphia, PA | $30,000 | 3 | 3 | 2025 |
| Chicago Horticultural Society | Glencoe, IL | $30,000 | 3 | 3 | 2023 |
| Jupiter Medical Center Inc | Jupiter, FL | $30,000 | 3 | 3 | 2023 |
| Sandy Hook Promise Foundation | Newton, CT | $28,000 | 3 | 3 | 2024 |
| The News Literacy Project Inc | Washington, DC | $26,000 | 2 | 2 | 2025 |
| Adler Planetarium | Chicago, IL | $25,000 | 2 | 2 | 2025 |
| Bridge the Gap College Prep | Sausalito, CA | $25,000 | 5 | 5 | 2025 |
| Canal Alliance | San Rafael, CA | $25,000 | 5 | 5 | 2025 |
| Essex Land Trust Inc | Essex, CT | $25,000 | 5 | 5 | 2025 |
| Golden Gate National Parks Conservancy | San Francisco, CA | $25,000 | 5 | 5 | 2025 |
| Greenpeace Fund Inc | Washington, DC | $25,000 | 3 | 3 | 2023 |
| Mib Agents Inc | Barnard, VT | $25,000 | 5 | 5 | 2025 |
| President and Fellows of Harvard College | Boston, MA | $25,000 | 5 | 5 | 2025 |
| Project Soar Marrakech | Washington, DC | $25,000 | 1 | 1 | 2025 |
| Slide Ranch | Muir Beach, CA | $25,000 | 5 | 5 | 2025 |
| University of Colorado | Boulder, CO | $25,000 | 1 | 1 | 2024 |
| Wyoming PBS Foundation | Riverton, WY | $24,250 | 5 | 5 | 2025 |
| Wetlands Initiative | Chicago, IL | $23,500 | 3 | 3 | 2023 |
| The Pingry School | Basking Ridge, NJ | $23,000 | 7 | 5 | 2025 |
| Wyoming Humanities Council | Laramie, WY | $23,000 | 5 | 5 | 2025 |
| Essex Meadows Foundation Inc | Essex, CT | $22,000 | 5 | 4 | 2024 |
| Autism Speaks | New York, NY | $20,000 | 2 | 2 | 2022 |
| Cleveland Clinic Martin Health Foundation Inc | Stewart, FL | $20,000 | 2 | 2 | 2022 |
| Conservation International | Boston, MA | $20,000 | 3 | 3 | 2025 |
| Middlebury College | Middlebury, VT | $20,000 | 2 | 2 | 2022 |
| Natural Resources Defense | Merrifield, VA | $20,000 | 1 | 1 | 2025 |
| Nature Conservancy of Florida | Arlington, VA | $20,000 | 1 | 1 | 2022 |
| Sea Shepherd Conservation Society | Alexandria, VA | $20,000 | 2 | 2 | 2025 |
| Taft School | Watertown, CT | $20,000 | 5 | 5 | 2025 |
| Teton County Library Foundation Inc | Jackson, WY | $20,000 | 2 | 2 | 2022 |
| The Nature Conservancy | Winter Park, FL | $20,000 | 1 | 1 | 2024 |
| Hillside Learning Center | Longmont, MO | $19,000 | 2 | 2 | 2023 |
| Southern Poverty Law Center Inc | Montgomery, AL | $17,500 | 4 | 4 | 2024 |
| Public Broadcasting Radio of Colorado Inc | Centennial, CO | $17,000 | 5 | 5 | 2025 |
| The Church at Point O'woods | Waban, MA | $17,000 | 5 | 3 | 2023 |
| Hobe Sound Community Chest Inc | Hobe Sound, FL | $16,000 | 3 | 3 | 2023 |
| The Humane Society of Boulder Valley | Boulder, CO | $16,000 | 5 | 5 | 2025 |
| Food Bank of New York City | New York, NY | $15,000 | 3 | 3 | 2023 |
| New Story Inc | Atlanta, GA | $15,000 | 3 | 3 | 2023 |
| The David Sheldrick Wildlife Trust USA Inc | Laguna Hills, CA | $15,000 | 1 | 1 | 2021 |
| Montefiore Medical Center | Bronx, NY | $14,000 | 4 | 4 | 2025 |
| Wake Forest University School of Medicine | Winstonsalem, NC | $14,000 | 5 | 5 | 2025 |
| Vanderbilt University School of Medicine | Nashville, TN | $13,000 | 5 | 5 | 2025 |
| NAACP Empowerment Programs Inc | Baltimore, MD | $12,500 | 3 | 3 | 2023 |
| The Church at Point O'woods | Bay Shore, NY | $12,500 | 2 | 2 | 2025 |
| Aspen Community Foundation | Basalt, CO | $12,000 | 2 | 2 | 2025 |
| Bridge House | Boulder, CO | $12,000 | 4 | 4 | 2025 |
| Ntsad-National Tay-Sachs and Allied Diseases Association Inc | Boston, MA | $12,000 | 4 | 4 | 2024 |
| Middlesex Health | Middleton, CT | $11,000 | 4 | 3 | 2024 |
| New York Restoration Project | New York, NY | $11,000 | 4 | 4 | 2024 |
| Sea Shepard Conservation Society | Alexandria, VA | $11,000 | 3 | 3 | 2023 |
| California State Parks Foundation | City of Industry, CA | $10,000 | 1 | 1 | 2025 |
| Clean Air Task Force Inc | Boston, MA | $10,000 | 2 | 2 | 2023 |
| Conservation International | Arlington, VA | $10,000 | 2 | 2 | 2022 |
| Food Bank for New York City | New York, NY | $10,000 | 2 | 2 | 2025 |
| Griffin Museum of Science & Industry | Chicago, IL | $10,000 | 1 | 1 | 2024 |
| Martin Memorial Medical Center Inc | Stuart, FL | $10,000 | 1 | 1 | 2023 |
| Msi US | Washington, DC | $10,000 | 1 | 1 | 2025 |
| Osa Wildlife Sanctuary Foundation Inc | Greenwood, IN | $10,000 | 2 | 2 | 2022 |
| Protect Democracy Project | Washingon, DC | $10,000 | 1 | 1 | 2025 |
| UC Santa Barbara Foundation | Santa Barbara, CA | $10,000 | 1 | 1 | 2025 |
| William J Brennan Center for Justice | New York, NY | $10,000 | 1 | 1 | 2025 |
| Colgate University | Hamilton, NY | $9,000 | 5 | 5 | 2025 |
| Loomis Chaffee School | Windsor, CT | $9,000 | 5 | 5 | 2025 |
| The Connecticut Audubon Society | Fairfield, CT | $9,000 | 5 | 5 | 2025 |
| The Greater Cedar Rapids Community Foundation | Cedar Rapids, IA | $9,000 | 5 | 4 | 2024 |
| Audubon Canyon Ranch | Stinson Beach, CA | $8,000 | 4 | 4 | 2024 |
| Boca Raton Regional Hospital Inc | Boca Raton, FL | $8,000 | 4 | 4 | 2024 |
| Connecticut College | New London, CT | $8,000 | 4 | 4 | 2024 |
| Florence Griswold Museum | Old Lyme, CT | $8,000 | 4 | 4 | 2024 |
| Holy Cross Hospital Inc | Fort Lauderdale, FL | $8,000 | 4 | 4 | 2024 |
| International Crane Foundation Inc | Baraboo, WI | $8,000 | 2 | 2 | 2022 |
| Overlook Foundation | Summit, NJ | $8,000 | 4 | 4 | 2024 |
| Sarah Lawrence College | Bronxville, NY | $8,000 | 5 | 5 | 2025 |
| The Shoreline Soup Kitchens and Pantries | Essex, CT | $8,000 | 4 | 4 | 2024 |
| Yale-New Haven Hospital | New Haven, CT | $8,000 | 4 | 4 | 2024 |
| Demos a Network for Ideas and Action Ltd | New York, NY | $7,500 | 2 | 2 | 2022 |
| Sierra Club Foundation | Oakland, CA | $7,000 | 3 | 3 | 2023 |
| The Mountain School of Milton Academy | Vershire, VT | $7,000 | 5 | 5 | 2025 |
| Barnard College | New York, NY | $6,000 | 5 | 5 | 2025 |
| Chewonki Foundation Inc | Wiscasset, ME | $6,000 | 5 | 5 | 2025 |
| Environmental Defense Fund | Washington, DC | $6,000 | 2 | 2 | 2022 |
| First Congregation Church of Old Lyme | Old Lyme, CT | $6,000 | 3 | 3 | 2023 |
| Hobe Sound Nature Center Inc | Hobe Sound, FL | $6,000 | 3 | 3 | 2023 |
| Palm Beach Drama Works | West Palm Beach, FL | $6,000 | 3 | 3 | 2023 |
| St John's Episcopal Church of Jackson Hole | Jackson, WY | $6,000 | 3 | 3 | 2023 |
| Wild Bird Fund Inc | New York, NY | $6,000 | 2 | 2 | 2025 |
| C-Change Conversations | Princeton, NJ | $5,000 | 1 | 1 | 2025 |
| Center for Science in the Public Interest | Washington, DC | $5,000 | 1 | 1 | 2021 |
| Common Cause Education Fund | Washington, DC | $5,000 | 1 | 1 | 2025 |
| Deep Center Incorporated | Savannah, GA | $5,000 | 1 | 1 | 2025 |
| Denver Museum of Nature and Science | Denver, CO | $5,000 | 2 | 2 | 2022 |
| Denver Zoological Foundation Inc | Denver, CO | $5,000 | 3 | 3 | 2025 |
| Emergency Family Assistance Association | Boulder, CO | $5,000 | 3 | 3 | 2023 |
| Foundation for Public Broadcasting in Georgia Inc | Atlanta, GA | $5,000 | 1 | 1 | 2025 |
| Green Science Policy Institue | Berkeley, CA | $5,000 | 1 | 1 | 2025 |
| Indivisible Civics | Washington, DC | $5,000 | 1 | 1 | 2025 |
| Morristown-Beard School | Morristown, NJ | $5,000 | 5 | 5 | 2025 |
| One Hundred Miles Inc | Brunswick, GA | $5,000 | 1 | 1 | 2025 |
| Planned Parenthood Federation of America Inc | Washington, DC | $5,000 | 1 | 1 | 2025 |
| Resource Renewal Institute | Fairfax, CA | $5,000 | 1 | 1 | 2022 |
| The Current Ga (grey Matters Project Inc) | Savannah, GA | $5,000 | 1 | 1 | 2025 |
| American Society of Pediatric Otolaryngology | Chicago, IL | $4,000 | 2 | 2 | 2024 |
| Connecticut Public Broadcasting Inc | Hartford, CT | $4,000 | 4 | 4 | 2024 |
| Essex Library Association | Essex, CT | $4,000 | 4 | 4 | 2024 |
| First Congregational Church of Old Lyme | Old Lyme, CT | $4,000 | 3 | 2 | 2025 |
| Outreach United Resource Center Inc | Longmont, CO | $4,000 | 2 | 2 | 2022 |
| The Connecticut River Foundation at Steamboat Dock Inc | Essex, CT | $4,000 | 4 | 4 | 2024 |
| The Wild Animal Sanctuary | Keenesburg, CO | $4,000 | 2 | 2 | 2022 |
| Bronx Childrens Museum | Bronx, NY | $3,000 | 1 | 1 | 2021 |
| Ivoryton Playhouse | Ivoryton, CT | $3,000 | 3 | 3 | 2023 |
| Middlesex Hospital | Middleton, CT | $3,000 | 1 | 1 | 2021 |
| The Conscious Alliance | Boulder, CO | $3,000 | 2 | 2 | 2022 |
| All Hands Ecology | Stinson Beach, CA | $2,000 | 1 | 1 | 2025 |
| American Society of Pediatric Otolaryngology | Middleton, WI | $2,000 | 1 | 1 | 2025 |
| Chef Ann Foundation | Boulder, CO | $2,000 | 2 | 2 | 2022 |
| Coastal Conservation League | Charleston, SC | $2,000 | 1 | 1 | 2021 |
| Jarrow Montessori School | Boulder, CO | $2,000 | 2 | 2 | 2022 |
| Lake Bluff Open Lands | Lake Bluff, IL | $2,000 | 2 | 2 | 2022 |
| Lake Forest Foundation for Historic Preservation | Lake Forest, IL | $2,000 | 2 | 2 | 2022 |
| Madeira Schools Foundation | Mcclean, VA | $2,000 | 1 | 1 | 2021 |
| North Boulder Little League | Boulder, CO | $2,000 | 1 | 1 | 2025 |
| Palm Beach Dramaworks Inc | West Palm Beach, FL | $2,000 | 1 | 1 | 2024 |
| Safehouse Progressive Alliance for Non Violence Inc | Boulder, CO | $2,000 | 2 | 2 | 2022 |
| The Acceleration Project Inc | Scarsdale, NY | $2,000 | 2 | 2 | 2022 |
| The New York Public Library | New York, NY | $2,000 | 1 | 1 | 2021 |
| Attention Inc Aka Tgthr | Boulder, CO | $1,000 | 1 | 1 | 2021 |
| Boulder Public Library | Boulder, CO | $1,000 | 1 | 1 | 2021 |
| Boulder Public Library Foundation | Boulder, CO | $1,000 | 1 | 1 | 2022 |
| Ivoryton Playhouse Foundation Inc | Ivoryton, CT | $1,000 | 1 | 1 | 2024 |
| New York Public Radio | New York, NY | $1,000 | 1 | 1 | 2021 |
| Tgthr | Boulder, CO | $1,000 | 1 | 1 | 2022 |
141 of 187 (75%) received money in more than one year over the 5 years we hold.
Measured the way we measure every foundation -- what share of one year's grantees are funded again the next -- this one retains 77%, across 4 year-to-year transitions. The median foundation retains about 67%, so this one is unusually consistent. This measures how often it paid the same organizations again. It says nothing about whether it would consider a new one, and this foundation told the IRS it does not.
What kind of organizations it funds
By the activity category the IRS assigns each recipient, for the 483 grants where we could match the recipient to a registered organization. The categories are the IRS's. The match, made from the name and address on the return, is ours.
Giving by year
| Tax year | Grants | Total | Median grant |
|---|---|---|---|
| 2021 | 143 | $1,211,000 | $5,000 |
| 2022 | 149 | $1,556,000 | $5,000 |
| 2023 | 126 | $1,418,000 | $5,000 |
| 2024 | 112 | $1,422,000 | $5,000 |
| 2025 | 96 | $1,681,000 | $6,750 |
Tax years, not calendar years, and the most recent year is usually incomplete -- filings arrive about a year late, so a low final year means late paperwork rather than a foundation winding down.
Where its money goes
15% of its giving went to organizations in Colorado.
Get funders for your state and cause by email
We email you funders that gave to organizations in your state and cause, up to five at a time each week and never the same one twice, from their own IRS filings. Free. The weekly email has not started yet.
Unsubscribe in one click from any email. We never sell or share your address. To match on your organization and typical grant size too, keep a private profile.
Funders that support the same organizations
These funders gave to organizations this one also funded -- some private foundations, some community foundations and other grantmaking charities. Shared grantees are a sign of overlapping priorities and nothing more. Unlike this foundation, none of them is on record as funding only organizations it picks, and each page says what its filings show.
Related guides
Where these numbers come from
Everything above is taken from Mrb Foundation Inc's own Form 990-PF filings, which the IRS publishes in bulk. We used 5 returns (tax years 2021-2025). Grant figures are from its returns. Matching recipients to registered organizations, their IRS classifications, the retention rate and the funders that support the same organizations are our own calculations, described in how we build this.
Address of record on the latest return: 410 Hunt Club Way, Lake Geneva, WI, 53147. This is the address the foundation gave the IRS.
EIN 36-3920061 · See the original filings on ProPublica · How we build this
Is something here wrong about your foundation? Email [email protected] and we will correct it.