The Endurance Fund | Foundation Profile
GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like The Endurance Fund. Data shown is extracted from Form 990-PF filings.
EIN: 94-3170349
Foundation Overview
Based in Nicasio, CA, The Endurance Fund has awarded 435 grants totaling $9,148,626 to organizations in New York, California and 15 other states across the US. Individual grants range from $20 to $3,335,743, with a median award of $1,000.
Latest Tax Year
2024
Total Giving (all years)
$9,148,626
Total Assets
$6,041,379
Median Grant (all grants)
$1,000
Latest Form 990-PF Snapshot
Total Grants
49
Median Grant
$1,070
% Median Grant Decline
-46%
(vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year:
February 2026
Foundation Intelligence
Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies
New Applicant Friendliness
Relationship-Focused: 27%
13 of 49 recipients (27%) were new grantees. Foundation strongly favors organizations with proven track records. New partnerships develop slowly over time.
Geographic Focus
California
74% of all grants are concentrated in California, demonstrating highly focused geographic giving. This foundation prioritizes deep community impact in its primary service area. Within California, funding concentrates in San Geronimo (22%), San Rafael (19%), San Francisco (17%).
Funding Trajectory
+2471%
Strong 2471% growth in annual giving over 8 years indicates expanding philanthropic capacity and increasing opportunities for grant seekers. This upward trajectory suggests growing foundation resources and commitment.
Program Areas
General Purposes + 3 others
Diversified giving across multiple program areas with primary emphasis on general purposes (64%). This broad approach suggests openness to various causes and innovative cross-sector solutions.
Where is The Money Going?
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Grants & Funding
Analyzing past grantees provides valuable insights into The Endurance Fund's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.
| Name | Amount | Location | Purpose | Year |
|---|---|---|---|---|
| Kqed | $2,000 | San Francisco, CA, US | General Suppport | 2024 |
| Nicasio Volunteer Fire Dept | $500 | Nicasio, CA, US | General Support | 2024 |
| Redwood Empire Food Bank | $1,000 | Santa Rosa, CA, US | General Support | 2024 |
| Vanguard Charitable Program | $50,000 | Southeastern, PA, US | The Granite Fund | 2024 |
| West Marin Senior Services | $1,000 | Point Reyes Station, CA, US | General Support | 2024 |
| Vanguard Charitable Program | $50,000 | Warwick, RI, US | The Meili Fund | 2024 |
| Mountain Play Association | $1,000 | San Rafael, CA, US | General Support | 2024 |
| Nicasio Historical Society | $200 | Nicasio, CA, US | General Support | 2024 |
| Nicasio Land Preserve | $150 | Nicasio, CA, US | General Support | 2024 |
| Leap Lagunitas School Savers | $5,000 | San Geronimo, CA, US | General Support | 2024 |
| Earthjustice | $1,000 | San Francisco, CA, US | General Support | 2024 |
| Marin Agricultural Land Trust | $5,000 | Point Reyes Station, CA, US | General Support - Stewardship | 2024 |
| Earthjustice | $1,000 | San Francisco, CA, US | General Support | 2024 |
| National Parks Conservation Associa | $500 | Washington, DC, US | General Support | 2024 |
| San Geronimo Valley Community Cente | $26,091 | San Geronimo, CA, US | Council Dinner | 2024 |
| San Geronimo Valley Community Cente | $18,900 | San Geronimo, CA, US | Job Training | 2024 |
| San Geronimo Valley Community Cente | $6,225 | San Geronimo, CA, US | Vast | 2024 |
| San Geronimo Valley Emergency Fund | $5,000 | San Geronimo, CA, US | General Support | 2024 |
| Ross Valley Players | $500 | Ross, CA, US | General Support | 2024 |
| Pacific Forest Trust | $500 | San Francisco, CA, US | General Support & Watershed Project | 2024 |
| San Geronimo Valley Community Cente | $500 | San Geronimo, CA, US | Woodacre Park | 2024 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2024 |
| Osher Marin Jewish Community Center | $2,000 | San Rafael, CA, US | General Support | 2024 |
| Marin Symphony | $500 | San Rafael, CA, US | General Support | 2024 |
| Vivalon | $1,070 | San Rafael, CA, US | General Support | 2024 |
| Marin Country Day School | $5,000 | Corte Madera, CA, US | Annual Fund | 2024 |
| Branson School | $5,000 | Ross, CA, US | Annual Fund | 2024 |
| Kingswood-oxford School | $10,000 | West Harest Hartford, CT, US | Annual Fund | 2024 |
| Friends Of The Library Fairfax | $1,039 | San Rafael, CA, US | General Support | 2024 |
| Health-connectedorg | $10,000 | East Palo Alto, CA, US | #Comprehensivesexed | 2024 |
| Jacob's Pillow | $250 | Becket, MA, US | General Support | 2024 |
| Vanguard Charitable Program | $25,000 | Warwick, RI, US | Facilitation Of Grant Making | 2024 |
| San Geronimo Valley Community Cente | $7,100 | San Geronimo, CA, US | Vast | 2024 |
| San Geronimo Valley Community Cente | $16,100 | San Geronimo, CA, US | Job Training | 2024 |
| Pomona College | $5,000 | Claremont, CA, US | Annual Fund | 2024 |
| Barrington Stage Company | $250 | Pittsfield, MA, US | General Support | 2024 |
| Berkshire Theatre Group | $100 | Pittsfield, MA, US | General Support | 2024 |
| Dominican University Of California | $1,500 | San Rafael, CA, US | Athletics Program | 2024 |
| Maine Rockweed Coalition | $100 | Pembroke, ME, US | Rockweed Forest Book | 2024 |
| Marin Community Foundation | $3,335,743 | Novato, CA, US | The Reliance Fund | 2024 |
| Mother Jones | $500 | San Francisco, CA, US | General Support | 2024 |
| Shakespeare And Company | $250 | Tallahassee, FL, US | General Support | 2024 |
| Signal Foundation | $50 | Harrison, NY, US | General Support | 2024 |
| Signal Foundation | $50 | Harrison, NY, US | General Support | 2024 |
| Signal Foundation | $20 | Harrison, NY, US | General Support | 2024 |
| St Helena Endowment Trust | $1,550 | St Helena, CA, US | General Support | 2024 |
| St Helena Endowment Trust | $1,500 | St Helena, CA, US | General Support | 2024 |
| Vanguard Charitable Program | $2,631,590 | Warwick, RI, US | General Support | 2024 |
| San Geronimo Valley Community Cente | $4,000 | San Geronimo, CA, US | Endowment Fund | 2024 |
| Nicasio Volunteer Fire Dept | $40 | Nicasio, CA, US | General Support | 2023 |
| Cystic Fibrosis Foundation | $2,500 | Bethesda, MD, US | General Support | 2023 |
| Oregon Shakespeare Festival | $500 | Ashland, OR, US | General Support | 2023 |
| West Marin Senior Services | $1,000 | Point Reyes Station, CA, US | General Support | 2023 |
| Wikimedia Foundation Inc | $250 | San Francisco, CA, US | General Support | 2023 |
| Naral Pro Choice Foundation | $500 | Washington, DC, US | General Support | 2023 |
| Aclu Foundation | $1,000 | New York, NY, US | General Support | 2023 |
| Kqed | $2,000 | San Francisco, CA, US | General Support | 2023 |
| Trustees For Alaska | $5,000 | Anchorage, AK, US | General Support | 2023 |
| National Parks Conservation Associa | $500 | Washington, DC, US | General Support | 2023 |
| San Geronimo Valley Community Cente | $2,736 | San Geronimo, CA, US | General Support | 2023 |
| San Geronimo Valley Community Cente | $50,000 | San Geronimo, CA, US | General Support | 2023 |
| Redwood Empire Food Bank | $1,000 | Santa Rosa, CA, US | General Support | 2023 |
| Environmental Action Committee | $50,000 | Point Reyes Station, CA, US | Western Watershed | 2023 |
| Lagunitas School Foundation - Leap | $10,000 | San Geronimo, CA, US | General Support | 2023 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2023 |
| Osher Marin Jewish Community Center | $2,000 | San Rafael, CA, US | General Support | 2023 |
| Vivalon | $1,000 | San Rafael, CA, US | General Support | 2023 |
| Marin Country Day School | $5,000 | Corte Madera, CA, US | Annual Fund | 2023 |
| Branson School | $5,000 | Ross, CA, US | Annual Fund | 2023 |
| Friends Of The Library Fairfax | $1,000 | San Rafael, CA, US | General Support | 2023 |
| Vanguard Charitable Program | $60,000 | Warwick, RI, US | Facilitation Of Grant Making | 2023 |
| San Geronimo Valley Community Cente | $12,363 | San Geronimo, CA, US | Vast | 2023 |
| San Geronimo Valley Lions | $4,500 | Lagunitas, CA, US | General Support | 2023 |
| San Geronimo Valley Lions | $500 | Lagunitas, CA, US | General Support | 2023 |
| Art Omi | $100 | Ghent, NY, US | General Support | 2023 |
| Boston Pops Tanglewood | $200 | Lenox, MA, US | General Support | 2023 |
| Pamona College | $5,000 | Claremont, CA, US | General Support | 2023 |
| San Geronimo Valley Community Cente | $17,400 | San Geronimo, CA, US | Job Training | 2023 |
| San Geronimo Valley Community Cente | $8,177 | San Geronimo, CA, US | Park Parcel | 2023 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Brush Clearing On The New Park | 2023 |
| Nicasio Volunteer Fire Dept | $40 | Nicasio, CA, US | General Support | 2023 |
| Cystic Fibrosis Foundation | $2,500 | Bethesda, MD, US | General Support | 2023 |
| Oregon Shakespeare Festival | $500 | Ashland, OR, US | General Support | 2023 |
| West Marin Senior Services | $1,000 | Point Reyes Station, CA, US | General Support | 2023 |
| Wikimedia Foundation Inc | $250 | San Francisco, CA, US | General Support | 2023 |
| Naral Pro Choice Foundation | $500 | Washington, DC, US | General Support | 2023 |
| Aclu Foundation | $1,000 | New York, NY, US | General Support | 2023 |
| Kqed | $2,000 | San Francisco, CA, US | General Support | 2023 |
| Trustees For Alaska | $5,000 | Anchorage, AK, US | General Support | 2023 |
| National Parks Conservation Associa | $500 | Washington, DC, US | General Support | 2023 |
| San Geronimo Valley Community Cente | $2,736 | San Geronimo, CA, US | General Support | 2023 |
| San Geronimo Valley Community Cente | $50,000 | San Geronimo, CA, US | General Support | 2023 |
| Redwood Empire Food Bank | $1,000 | Santa Rosa, CA, US | General Support | 2023 |
| Environmental Action Committee | $50,000 | Point Reyes Station, CA, US | Western Watershed | 2023 |
| Lagunitas School Foundation - Leap | $10,000 | San Geronimo, CA, US | General Support | 2023 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2023 |
| Osher Marin Jewish Community Center | $2,000 | San Rafael, CA, US | General Support | 2023 |
| Vivalon | $1,000 | San Rafael, CA, US | General Support | 2023 |
| Marin Country Day School | $5,000 | Corte Madera, CA, US | Annual Fund | 2023 |
| Branson School | $5,000 | Ross, CA, US | Annual Fund | 2023 |
| Friends Of The Library Fairfax | $1,000 | San Rafael, CA, US | General Support | 2023 |
| Vanguard Charitable Program | $60,000 | Warwick, RI, US | Facilitation Of Grant Making | 2023 |
| San Geronimo Valley Community Cente | $12,363 | San Geronimo, CA, US | Vast | 2023 |
| San Geronimo Valley Lions | $4,500 | Lagunitas, CA, US | General Support | 2023 |
| San Geronimo Valley Lions | $500 | Lagunitas, CA, US | General Support | 2023 |
| Art Omi | $100 | Ghent, NY, US | General Support | 2023 |
| Boston Pops Tanglewood | $200 | Lenox, MA, US | General Support | 2023 |
| Pamona College | $5,000 | Claremont, CA, US | General Support | 2023 |
| San Geronimo Valley Community Cente | $17,400 | San Geronimo, CA, US | Job Training | 2023 |
| San Geronimo Valley Community Cente | $8,177 | San Geronimo, CA, US | Park Parcel | 2023 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Brush Clearing On The New Park | 2023 |
| Earthjustice | $1,000 | Oakland, CA, US | General Support | 2022 |
| Environmental Action Committee | $10,000 | Point Reyes Station, CA, US | General Support | 2022 |
| Kqed | $200 | San Francisco, CA, US | General Suppport | 2022 |
| Redwood Empire Food Bank | $1,000 | Santa Rosa, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $30,000 | Southeastern, PA, US | The Granite Fund | 2022 |
| West Marin Senior Services | $1,000 | Point Reyes Station, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $30,000 | Warwick, RI, US | The Meili Fund | 2022 |
| Mountain Play Association | $500 | San Rafael, CA, US | General Support | 2022 |
| Nicasio Land Preserve | $350 | Nicasio, CA, US | General Support | 2022 |
| Wikimedia Foundation Inc | $500 | San Francisco, CA, US | General Support | 2022 |
| Naral Pro Choice Foundation | $1,000 | Washington, DC, US | General Support | 2022 |
| Alaska Conservation Foundation | $5,000 | Anchorage, AK, US | Mining Conference | 2022 |
| Aclu Foundation | $1,000 | New York, NY, US | General Support | 2022 |
| Marin Agricultural Land Trust | $7,000 | Point Reyes Station, CA, US | General Support - Stewardship | 2022 |
| Kqed | $2,000 | San Francisco, CA, US | General Support | 2022 |
| Earthjustice | $1,000 | San Francisco, CA, US | General Support | 2022 |
| Network For Good | $300 | Washington, DC, US | 18 Reasons | 2022 |
| Pacific Forest Trust | $25,000 | San Francisco, CA, US | Implementing Vital Watershed Restoration And Conservation In California | 2022 |
| St Vincent De Paul Society | $1,000 | San Rafael, CA, US | General Support | 2022 |
| San Geronimo Valley Community Cente | $23,697 | San Geronimo, CA, US | Council Dinner | 2022 |
| San Geronimo Valley Community Cente | $20,400 | San Geronimo, CA, US | Job Training | 2022 |
| San Geronimo Valley Community Cente | $9,563 | San Geronimo, CA, US | Vast | 2022 |
| San Geronimo Valley Community Cente | $2,391 | San Geronimo, CA, US | Woodacre Park | 2022 |
| San Geronimo Valley Community Cente | $3,000 | San Geronimo, CA, US | Youth Job Training | 2022 |
| San Geronimo Valley Community Cente | $5,988 | San Geronimo, CA, US | Vast | 2022 |
| San Geronimo Valley Emergency Fund | $2,500 | San Geronimo, CA, US | General Support | 2022 |
| Ross Valley Players | $500 | Ross, CA, US | General Support | 2022 |
| Environmental Action Committee | $10,000 | Point Reyes Station, CA, US | Birding Festival | 2022 |
| San Geronimo Valley Community Cente | $100,000 | San Geronimo, CA, US | Woodacre Park | 2022 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2022 |
| Osher Marin Jewish Community Center | $2,500 | San Rafael, CA, US | General Support | 2022 |
| Vivalon | $500 | San Rafael, CA, US | General Support | 2022 |
| Pomona College | $5,000 | Claremont, CA, US | Annual Fund | 2022 |
| Marin Country Day School | $5,000 | Corte Madera, CA, US | Annual Fund | 2022 |
| Branson School | $5,000 | Ross, CA, US | Annual Fund | 2022 |
| Friends Of The Library Fairfax | $5,000 | San Rafael, CA, US | Fairfax Library Garden Project | 2022 |
| Friends Of The Library Fairfax | $1,000 | San Rafael, CA, US | Pavers For Garden | 2022 |
| Health-connectedorg | $10,000 | East Palo Alto, CA, US | #Comprehensivesexed | 2022 |
| Interlochen Center For The Arts | $1,000 | Interlochen, MI, US | General Support | 2022 |
| Jacob's Pillow | $250 | Becket, MA, US | General Support | 2022 |
| Kidnuz | $1,000 | Alamo, CA, US | General Support | 2022 |
| St Helena Montessori School | $500 | St Helena, CA, US | General Support | 2022 |
| St Jude's Children's Hospital | $500 | San Francisco, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $50,000 | Warwick, RI, US | General Support | 2022 |
| Earthjustice | $1,000 | Oakland, CA, US | General Support | 2022 |
| Environmental Action Committee | $10,000 | Point Reyes Station, CA, US | General Support | 2022 |
| Kqed | $200 | San Francisco, CA, US | General Suppport | 2022 |
| Redwood Empire Food Bank | $1,000 | Santa Rosa, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $30,000 | Southeastern, PA, US | The Granite Fund | 2022 |
| West Marin Senior Services | $1,000 | Point Reyes Station, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $30,000 | Warwick, RI, US | The Meili Fund | 2022 |
| Mountain Play Association | $500 | San Rafael, CA, US | General Support | 2022 |
| Nicasio Land Preserve | $350 | Nicasio, CA, US | General Support | 2022 |
| Wikimedia Foundation Inc | $500 | San Francisco, CA, US | General Support | 2022 |
| Naral Pro Choice Foundation | $1,000 | Washington, DC, US | General Support | 2022 |
| Alaska Conservation Foundation | $5,000 | Anchorage, AK, US | Mining Conference | 2022 |
| Aclu Foundation | $1,000 | New York, NY, US | General Support | 2022 |
| Marin Agricultural Land Trust | $7,000 | Point Reyes Station, CA, US | General Support - Stewardship | 2022 |
| Kqed | $2,000 | San Francisco, CA, US | General Support | 2022 |
| Earthjustice | $1,000 | San Francisco, CA, US | General Support | 2022 |
| Network For Good | $300 | Washington, DC, US | 18 Reasons | 2022 |
| Pacific Forest Trust | $25,000 | San Francisco, CA, US | Implementing Vital Watershed Restoration And Conservation In California | 2022 |
| St Vincent De Paul Society | $1,000 | San Rafael, CA, US | General Support | 2022 |
| San Geronimo Valley Community Cente | $23,697 | San Geronimo, CA, US | Council Dinner | 2022 |
| San Geronimo Valley Community Cente | $20,400 | San Geronimo, CA, US | Job Training | 2022 |
| San Geronimo Valley Community Cente | $9,563 | San Geronimo, CA, US | Vast | 2022 |
| San Geronimo Valley Community Cente | $2,391 | San Geronimo, CA, US | Woodacre Park | 2022 |
| San Geronimo Valley Community Cente | $3,000 | San Geronimo, CA, US | Youth Job Training | 2022 |
| San Geronimo Valley Community Cente | $5,988 | San Geronimo, CA, US | Vast | 2022 |
| San Geronimo Valley Emergency Fund | $2,500 | San Geronimo, CA, US | General Support | 2022 |
| Ross Valley Players | $500 | Ross, CA, US | General Support | 2022 |
| Environmental Action Committee | $10,000 | Point Reyes Station, CA, US | Birding Festival | 2022 |
| San Geronimo Valley Community Cente | $100,000 | San Geronimo, CA, US | Woodacre Park | 2022 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2022 |
| Osher Marin Jewish Community Center | $2,500 | San Rafael, CA, US | General Support | 2022 |
| Vivalon | $500 | San Rafael, CA, US | General Support | 2022 |
| Pomona College | $5,000 | Claremont, CA, US | Annual Fund | 2022 |
| Marin Country Day School | $5,000 | Corte Madera, CA, US | Annual Fund | 2022 |
| Branson School | $5,000 | Ross, CA, US | Annual Fund | 2022 |
| Friends Of The Library Fairfax | $5,000 | San Rafael, CA, US | Fairfax Library Garden Project | 2022 |
| Friends Of The Library Fairfax | $1,000 | San Rafael, CA, US | Pavers For Garden | 2022 |
| Health-connectedorg | $10,000 | East Palo Alto, CA, US | #Comprehensivesexed | 2022 |
| Interlochen Center For The Arts | $1,000 | Interlochen, MI, US | General Support | 2022 |
| Jacob's Pillow | $250 | Becket, MA, US | General Support | 2022 |
| Kidnuz | $1,000 | Alamo, CA, US | General Support | 2022 |
| St Helena Montessori School | $500 | St Helena, CA, US | General Support | 2022 |
| St Jude's Children's Hospital | $500 | San Francisco, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $50,000 | Warwick, RI, US | General Support | 2022 |
| Earthjustice | $1,000 | Oakland, CA, US | General Support | 2022 |
| Environmental Action Committee | $10,000 | Point Reyes Station, CA, US | General Support | 2022 |
| Kqed | $200 | San Francisco, CA, US | General Suppport | 2022 |
| Redwood Empire Food Bank | $1,000 | Santa Rosa, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $30,000 | Southeastern, PA, US | The Granite Fund | 2022 |
| West Marin Senior Services | $1,000 | Point Reyes Station, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $30,000 | Warwick, RI, US | The Meili Fund | 2022 |
| Mountain Play Association | $500 | San Rafael, CA, US | General Support | 2022 |
| Nicasio Land Preserve | $350 | Nicasio, CA, US | General Support | 2022 |
| Wikimedia Foundation Inc | $500 | San Francisco, CA, US | General Support | 2022 |
| Naral Pro Choice Foundation | $1,000 | Washington, DC, US | General Support | 2022 |
| Alaska Conservation Foundation | $5,000 | Anchorage, AK, US | Mining Conference | 2022 |
| Aclu Foundation | $1,000 | New York, NY, US | General Support | 2022 |
| Marin Agricultural Land Trust | $7,000 | Point Reyes Station, CA, US | General Support - Stewardship | 2022 |
| Kqed | $2,000 | San Francisco, CA, US | General Support | 2022 |
| Earthjustice | $1,000 | San Francisco, CA, US | General Support | 2022 |
| Network For Good | $300 | Washington, DC, US | 18 Reasons | 2022 |
| Pacific Forest Trust | $25,000 | San Francisco, CA, US | Implementing Vital Watershed Restoration And Conservation In California | 2022 |
| St Vincent De Paul Society | $1,000 | San Rafael, CA, US | General Support | 2022 |
| San Geronimo Valley Community Cente | $23,697 | San Geronimo, CA, US | Council Dinner | 2022 |
| San Geronimo Valley Community Cente | $20,400 | San Geronimo, CA, US | Job Training | 2022 |
| San Geronimo Valley Community Cente | $9,563 | San Geronimo, CA, US | Vast | 2022 |
| San Geronimo Valley Community Cente | $2,391 | San Geronimo, CA, US | Woodacre Park | 2022 |
| San Geronimo Valley Community Cente | $3,000 | San Geronimo, CA, US | Youth Job Training | 2022 |
| San Geronimo Valley Community Cente | $5,988 | San Geronimo, CA, US | Vast | 2022 |
| San Geronimo Valley Emergency Fund | $2,500 | San Geronimo, CA, US | General Support | 2022 |
| Ross Valley Players | $500 | Ross, CA, US | General Support | 2022 |
| Environmental Action Committee | $10,000 | Point Reyes Station, CA, US | Birding Festival | 2022 |
| San Geronimo Valley Community Cente | $100,000 | San Geronimo, CA, US | Woodacre Park | 2022 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2022 |
| Osher Marin Jewish Community Center | $2,500 | San Rafael, CA, US | General Support | 2022 |
| Vivalon | $500 | San Rafael, CA, US | General Support | 2022 |
| Pomona College | $5,000 | Claremont, CA, US | Annual Fund | 2022 |
| Marin Country Day School | $5,000 | Corte Madera, CA, US | Annual Fund | 2022 |
| Branson School | $5,000 | Ross, CA, US | Annual Fund | 2022 |
| Friends Of The Library Fairfax | $5,000 | San Rafael, CA, US | Fairfax Library Garden Project | 2022 |
| Friends Of The Library Fairfax | $1,000 | San Rafael, CA, US | Pavers For Garden | 2022 |
| Health-connectedorg | $10,000 | East Palo Alto, CA, US | #Comprehensivesexed | 2022 |
| Interlochen Center For The Arts | $1,000 | Interlochen, MI, US | General Support | 2022 |
| Jacob's Pillow | $250 | Becket, MA, US | General Support | 2022 |
| Kidnuz | $1,000 | Alamo, CA, US | General Support | 2022 |
| St Helena Montessori School | $500 | St Helena, CA, US | General Support | 2022 |
| St Jude's Children's Hospital | $500 | San Francisco, CA, US | General Support | 2022 |
| Vanguard Charitable Program | $50,000 | Warwick, RI, US | General Support | 2022 |
| Aclu Foundation | $1,000 | New York, NY, US | General Support | 2021 |
| Environmental Action Committee | $5,000 | Point Reyes Station, CA, US | General Support | 2021 |
| Marin Agricultural Land Trust | $10,000 | Point Reyes Station, CA, US | Measure A Funding Support | 2021 |
| Nicasio Volunteer Fire Dept | $200 | Nicasio, CA, US | General Support | 2021 |
| Parent Services Project | $1,000 | San Rafael, CA, US | Playgroup | 2021 |
| Vanguard Charitable Program | $98,000 | Southeastern, PA, US | General Support | 2021 |
| Redwood Empire Food Bank | $1,000 | Santa Rosa, CA, US | General Support | 2021 |
| West Marin Senior Services | $1,000 | Point Reyes Station, CA, US | General Support | 2021 |
| Mountain Play Association | $500 | San Rafael, CA, US | General Support | 2021 |
| 10000 Degrees | $10,000 | San Rafael, CA, US | Bfa Scholarship Fund | 2021 |
| Marin Agricultural Land Trust | $10,000 | Point Reyes Station, CA, US | Water Project | 2021 |
| Wikimedia Foundation Inc | $500 | San Francisco, CA, US | General Support | 2021 |
| Naral Pro Choice Foundation | $1,000 | Washington, DC, US | General Support | 2021 |
| Earthjustice | $1,000 | San Francisco, CA, US | General Support | 2021 |
| Pacific Forest Trust | $25,000 | San Francisco, CA, US | Establishing A Climate Smart Fire Management Strategy In California | 2021 |
| St Vincent De Paul Society | $500 | San Rafael, CA, US | General Support | 2021 |
| San Geronimo Valley Community Cente | $4,280 | San Geronimo, CA, US | General Support - Covid Relief | 2021 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Annual Fund | 2021 |
| San Geronimo Valley Emergency Fund | $3,500 | San Geronimo, CA, US | General Support | 2021 |
| Redwood Empire Food Bank | $500 | Santa Rosa, CA, US | General Support | 2021 |
| Trustees For Alaska | $5,000 | Anchorage, AK, US | General Support | 2021 |
| San Geronimo Valley Community Cente | $5,000 | San Geronimo, CA, US | Woodacre Park | 2021 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2021 |
| Osher Marin Jewish Community Center | $2,500 | San Rafael, CA, US | General Support | 2021 |
| Marin Symphony | $250 | San Rafael, CA, US | General Support | 2021 |
| Vivalon | $1,000 | San Rafael, CA, US | General Support | 2021 |
| Meli Hua Fund | $30,000 | Warwick, RI, US | General Support | 2021 |
| The Granite Fund | $30,000 | Warwick, RI, US | General Support | 2021 |
| Pomona College | $5,000 | Claremont, CA, US | Annual Fund | 2021 |
| Marin Country Day School | $5,000 | Corte Madera, CA, US | Annual Fund | 2021 |
| Branson School | $5,000 | Ross, CA, US | Annual Fund | 2021 |
| Kingswood-oxford School | $10,000 | West Harest Hartford, CT, US | Annual Fund | 2021 |
| North Bay Bmx | $1,000 | Napa, CA, US | Youth Programs | 2021 |
| West Marin Senior Services | $500 | Point Reyes Station, CA, US | General Support | 2020 |
| Vanguard Charitable Program | $160,000 | Warwick, RI, US | General Support | 2020 |
| Mountain Play Association | $500 | San Rafael, CA, US | General Support | 2020 |
| 10000 Degrees | $25,000 | San Rafael, CA, US | Bfa Scholarship Fund | 2020 |
| St Vincent De Paul Society | $1,500 | San Rafael, CA, US | General Support - Covid Relief | 2020 |
| San Geronimo Valley Community Cente | $5,000 | San Geronimo, CA, US | General Support - Covid Relief | 2020 |
| Redwood Empire Food Bank | $2,000 | Santa Rosa, CA, US | General Support | 2020 |
| Sfmarin Food Bank | $1,000 | San Francisco, CA, US | General Support | 2020 |
| Marin Symphony | $250 | San Rafael, CA, US | General Support | 2020 |
| Vivalon | $1,000 | San Rafael, CA, US | General Support | 2020 |
| Homeward Bound | $500 | Novato, CA, US | General Support | 2020 |
| Bay Area Ridge Trail Council | $150 | San Francisco, CA, US | General Support | 2018 |
| Kqed Radio | $2,000 | San Francisco, CA, US | General Suppport | 2018 |
| Marin Audubon Society | $500 | Mill Valley, CA, US | General Support | 2018 |
| Natural Resources Defense Council | $1,000 | New York, NY, US | General Support | 2018 |
| Nicasio Volunteer Fire Dept | $250 | Nicasio, CA, US | General Support | 2018 |
| Ross Valley Players | $250 | Ross, CA, US | General Support | 2018 |
| University Of Chicago | $500 | Chicago, IL, US | General Support | 2018 |
| Valley Toys N Joys | $200 | Woodacre, CA, US | General Suppport | 2018 |
| Vanguard Charitable Program | $115,000 | Southeastern, PA, US | General Support | 2018 |
| Alaska Conservation Foundation | $12,000 | Anchorage, AK, US | General Support | 2018 |
| Trust For Public Land | $250 | San Francisco, CA, US | General Support | 2018 |
| Marin Ballet | $250 | San Rafael, CA, US | General Support | 2018 |
| West Marin Senior Services | $500 | Point Reyes Station, CA, US | General Support | 2018 |
| Mountain Play Association | $250 | San Rafael, CA, US | General Support | 2018 |
| Nicasio Land Preserve | $200 | Nicasio, CA, US | General Support | 2018 |
| Marin Agricultural Land Trust | $6,000 | Point Reyes Station, CA, US | General Support | 2018 |
| Cold Climate Housing Research Cente | $2,796 | Fairbanks, AK, US | General Support | 2018 |
| Environmental Defense Fund | $250 | New York, NY, US | General Support | 2018 |
| Earthjustice | $1,000 | San Francisco, CA, US | General Support | 2018 |
| National Parks Conservation Associa | $250 | Washington, DC, US | General Support | 2018 |
| Planned Parenthood Northern Califor | $52,500 | Concord, CA, US | General Support & Act Of Courage Event | 2018 |
| St Isabella's Parish | $500 | San Rafael, CA, US | General Support | 2018 |
| San Geronimo Valley Emergency Fund | $25,341 | San Geronimo, CA, US | General Support And Council Dinner | 2018 |
| Redwood Empire Food Bank | $1,250 | Santa Rosa, CA, US | General Support | 2018 |
| Trustees For Alaska | $2,000 | Anchorage, AK, US | General Support | 2018 |
| Pacific Forest Trust | $21,000 | San Francisco, CA, US | General Support & Watershed Project | 2018 |
| American Lung Association | $100 | Chicago, IL, US | General Support | 2018 |
| Environmental Action Committee | $25,000 | Point Reyes Station, CA, US | General Support & Tomales Dunes | 2018 |
| Lagunitas School Foundation - Leap | $1,000 | San Geronimo, CA, US | General Support | 2018 |
| Laguna De Santa Rosa Foundation | $500 | Santa Rosa, CA, US | General Support | 2018 |
| Southern Povery Law Center | $500 | Montgomery, AL, US | General Support | 2018 |
| California Film Institute | $265 | San Rafael, CA, US | General Support | 2018 |
| Habitat For Humanity Of Sonoma Coun | $500 | Santa Rosa, CA, US | General Support | 2018 |
| Hillsborough School Foundation | $2,500 | Hillsborough, CA, US | Ace Grant | 2018 |
| Marin Food Bank | $250 | San Rafael, CA, US | General Support | 2018 |
| American Civil Liberties Union Fdn | $1,000 | New York, NY, US | General Support | 2018 |
| New Venture Fund | $10,000 | Washington, DC, US | General Support | 2018 |
| Osher Marin Jewish Community Center | $500 | San Rafael, CA, US | General Support | 2018 |
| North Valley Community Foundation | $500 | Chico, CA, US | Camp Fire Relief | 2018 |
| University Of Chicago Physics Dept | $500 | Chicago, IL, US | General Support | 2018 |
| Audubon Alaska | $1,500 | Anchorage, AK, US | General Support | 2017 |
| Bay Area Ridge Trail Council | $100 | San Francisco, CA, US | General Support | 2017 |
| Environmental Action Committee | $40,000 | Point Reyes Station, CA, US | Tomales Dunes | 2017 |
| Environmental Defense Fund | $250 | New York, NY, US | General Support | 2017 |
| Kqed Radio | $2,000 | San Francisco, CA, US | General Suppport | 2017 |
| Marin Audubon Society | $500 | Mill Valley, CA, US | General Support | 2017 |
| Nicasio Volunteer Fire Dept | $250 | Nicasio, CA, US | General Support | 2017 |
| Planned Parenthood Federation Of Am | $5,000 | New York, NY, US | Match Grant Challenge | 2017 |
| Redwood Empire Food Bank | $250 | Santa Rosa, CA, US | General Support | 2017 |
| University Of Chicago | $1,000 | Chicago, IL, US | Dstrong | 2017 |
| Valley Toys N Joys | $200 | Woodacre, CA, US | General Suppport | 2017 |
| Cystic Fibrosis Foundation | $500 | Bethesda, MD, US | General Support | 2017 |
| Marin Ballet | $250 | San Rafael, CA, US | General Support | 2017 |
| Redwood Empire Food Bank | $250 | Santa Rosa, CA, US | General Support | 2017 |
| West Marin Senior Services | $250 | Point Reyes Station, CA, US | General Support | 2017 |
| Vanguard Charitable Program | $50,000 | Boston, MA, US | General Support | 2017 |
| Mountain Play Association | $500 | San Rafael, CA, US | General Support | 2017 |
| Nicasio Land Preserve | $200 | Nicasio, CA, US | General Support | 2017 |
| Leap Lagunitas School Savers | $1,000 | San Geronimo, CA, US | General Support | 2017 |
| Alaska Conservation Foundation | $2,000 | Anchorage, AK, US | Ak Stories | 2017 |
| Cold Climate Housing Research Cente | $11,500 | Fairbanks, AK, US | General Support | 2017 |
| Alaska Conservation Foundation | $1,085 | Anchorage, AK, US | Ak Stories | 2017 |
| Sonoma Humane Society | $250 | Santa Rosa, CA, US | General Support | 2017 |
| Pacific Forest Trust | $20,000 | San Francisco, CA, US | Watershed Project | 2017 |
| National Parks Conservation Associa | $250 | Washington, DC, US | Ak Office, Ambler Road Project | 2017 |
| Planned Parenthood Northern Califor | $3,000 | Concord, CA, US | General Support | 2017 |
| St Isabella's Parish | $500 | San Rafael, CA, US | General Support - Archibishop's Appeal | 2017 |
| San Geronimo Valley Community Cente | $19,397 | San Geronimo, CA, US | General Support | 2017 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Youth Job Training | 2017 |
| San Geronimo Valley Emergency Fund | $2,500 | San Geronimo, CA, US | General Support | 2017 |
| Redwood Empire Food Bank | $500 | Santa Rosa, CA, US | General Support | 2017 |
| Trustees For Alaska | $1,000 | Anchorage, AK, US | General Support | 2017 |
| Trustees For Alaska | $1,000 | Anchorage, AK, US | General Support | 2017 |
| Ross Valley Players | $500 | Ross, CA, US | General Support | 2017 |
| Alaska Center For The Environment | $2,000 | Anchorage, AK, US | General Support | 2017 |
| Pacific Forest Trust | $1,000 | San Francisco, CA, US | General Support | 2017 |
| American Lung Association | $100 | Chicago, IL, US | General Support | 2017 |
| Environmental Action Committee | $2,000 | Point Reyes Station, CA, US | General Support | 2017 |
| Grist Magazine | $50 | Seattle, WA, US | General Support | 2017 |
| Laguna De Santa Rosa Foundation | $500 | Santa Rosa, CA, US | Wings Wetland | 2017 |
| San Geronimo Valley Community Cente | $6,600 | San Geronimo, CA, US | Woodacre Park | 2017 |
| California Film Institute | $265 | San Rafael, CA, US | General Support | 2017 |
| Audubon Society Of Portland | $10,000 | Portland, OR, US | Educational Birding Program | 2017 |
| Cold Climate Housing Research Cente | $3,200 | Fairbanks, AK, US | General Support | 2017 |
| Committee To Protect Journalists | $100 | New York, NY, US | General Support | 2017 |
| Habitat For Humanity Of Sonoma Coun | $250 | Santa Rosa, CA, US | General Support | 2017 |
| Hillsborough School Foundation | $2,300 | Hillsborough, CA, US | Ace Grant | 2017 |
| Jewish Community Federation Of Sf | $250 | San Francisco, CA, US | Memory Garden | 2017 |
| Leap Lagunitas School Savers | $7,773 | San Geronimo, CA, US | General Support | 2017 |
| Oregon Coast Aquarium | $195 | Newport, OR, US | General Support | 2017 |
| Planned Parenthood Northern Califor | $5,000 | Concord, CA, US | General Support | 2017 |
| Marin Food Bank | $250 | San Rafael, CA, US | General Support | 2017 |
| Aclu Foundation | $500 | New York, NY, US | General Support | 2016 |
| Bay Area Ridge Trail Council | $100 | San Francisco, CA, US | General Support | 2016 |
| California Film Institute | $100 | San Rafael, CA, US | General Support | 2016 |
| Earthjustice | $500 | Oakland, CA, US | General Support | 2016 |
| Environmental Action Committee | $14,000 | Point Reyes Station, CA, US | Save Our Coast Campaign | 2016 |
| Environmental Action Committee | $10,000 | Point Reyes Station, CA, US | Tomales Dunes | 2016 |
| Kqed Radio | $2,000 | San Francisco, CA, US | General Suppport | 2016 |
| Marin Audubon Society | $500 | Mill Valley, CA, US | General Support | 2016 |
| Natural Resources Defense Council | $500 | New York, NY, US | General Support | 2016 |
| Nicasio Volunteer Fire Dept | $250 | Nicasio, CA, US | General Support | 2016 |
| University Of Chicago | $500 | Chicago, IL, US | Graduate Science Program | 2016 |
| Valley Toys N Joys | $200 | Woodacre, CA, US | General Suppport | 2016 |
| Alaska Conservation Foundation | $1,000 | Anchorage, AK, US | General Support | 2016 |
| Cystic Fibrosis Foundation | $10,000 | Bethesda, MD, US | General Support | 2016 |
| Marin Ballet | $250 | San Rafael, CA, US | General Support | 2016 |
| Redwood Empire Food Bank | $500 | Santa Rosa, CA, US | General Support | 2016 |
| Vanguard Charitable Endowment Fund | $68,000 | Boston, MA, US | General Support | 2016 |
| Mountain Play Association | $500 | San Rafael, CA, US | General Support | 2016 |
| Nicasio Land Preserve | $200 | Nicasio, CA, US | General Support | 2016 |
| Physician For Reproductive Choicehe | $1,000 | San Francisco, CA, US | General Support | 2016 |
| Wikimedia Foundation Inc | $500 | San Francisco, CA, US | General Support | 2016 |
| Alaska Conservation Foundation | $10,000 | Anchorage, AK, US | Small Grants Program | 2016 |
| Alaska Conservation Foundation | $2,700 | Anchorage, AK, US | General Support | 2016 |
| Aclu Foundation | $250 | New York, NY, US | General Support | 2016 |
| Alaska Conservation Foundation | $10,000 | Anchorage, AK, US | Ak Engagement Partnership | 2016 |
| Sonoma Humane Society | $250 | Santa Rosa, CA, US | General Support | 2016 |
| Environmental Defense Fund | $250 | New York, NY, US | General Support | 2016 |
| Earthjustice | $500 | San Francisco, CA, US | General Support | 2016 |
| Pacific Forest Trust | $500 | San Francisco, CA, US | General Support | 2016 |
| Legal Aid Of Marin | $500 | San Rafael, CA, US | General Support | 2016 |
| St Isabella's Parish | $500 | San Rafael, CA, US | Archbishop's Annual Fund | 2016 |
| San Geronimo Valley Community Cente | $2,140 | San Geronimo, CA, US | Council Event | 2016 |
| San Geronimo Valley Community Cente | $17,500 | San Geronimo, CA, US | Youth Development Programs | 2016 |
| San Geronimo Valley Community Cente | $5,012 | San Geronimo, CA, US | Playground Project | 2016 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Fund Development - Staff | 2016 |
| San Geronimo Valley Community Cente | $15,725 | San Geronimo, CA, US | Council Event | 2016 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Youth Job Training | 2016 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Youth Job Training | 2016 |
| San Geronimo Valley Emergency Fund | $2,500 | San Geronimo, CA, US | General Support | 2016 |
| Trustees For Alaska | $1,000 | Anchorage, AK, US | General Support | 2016 |
| Alaska Center For The Environment | $5,000 | Anchorage, AK, US | General Support | 2016 |
| American Lung Association | $100 | Chicago, IL, US | Molly Mccammon Clean Air Challenge-alaska | 2016 |
| California Coastal Protection Netwo | $10,000 | Santa Barbara, CA, US | General Support | 2016 |
| California Fire Foundation | $1,000 | Sacramento, CA, US | General Support | 2016 |
| Environmental Action Committee | $1,000 | Point Reyes Station, CA, US | General Support | 2016 |
| Lagunitas School Foundation - Leap | $1,000 | San Geronimo, CA, US | General Support | 2016 |
| Mendocino Music Festival | $200 | Mendocino, CA, US | General Support | 2016 |
| Nicasio School Foundation | $250 | Nicasio, CA, US | General Support | 2016 |
| Saint Raphael School | $200 | San Rafael, CA, US | General Support | 2016 |
| San Francisco Museum Of Modern Art | $200 | San Francisco, CA, US | General Support | 2016 |
| Laguna De Santa Rosa Foundation | $500 | Santa Rosa, CA, US | General Support | 2016 |
| Laguna De Santa Rosa Foundation | $250 | Santa Rosa, CA, US | General Support | 2016 |
| Marin Montessori School | $500 | Corte Madera, CA, US | General Support | 2016 |
| San Geronimo Valley Community Cente | $10,000 | San Geronimo, CA, US | Gala Event | 2016 |
| Wild Foundation | $2,000 | Boulder, CO, US | Brooks Range Council - Paving Tundra - Media Project | 2016 |
| California Film Institute | $125 | San Rafael, CA, US | General Support | 2016 |
Foundations Similar to The Endurance Fund
Discover 5 foundations with comparable assets ($5,818,194-$6,232,987), similar grant patterns, and geographic focus in CA that may also align with your organization's funding needs and grant seeking strategy.
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Related Foundation Resources in CA:
Contact Information
Official contact details for The Endurance Fund as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.
| EIN | 94-3170349 |
| Website | N/A |
| Address | 4749 NICASIO VALLEY ROAD Nicasio, CA 94946-0000 |
Key People (2)
Board members, trustees, and key staff who oversee The Endurance Fund's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.
| Trustee | Robert G Schiro |
|---|---|
| Trustee | Dorene C Schiro |
Forms 990-PF
IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.
Form 990-PF Research Tips
- Review Part XV for detailed grant recipient information and funding purposes
- Check Part I for total assets, annual giving amounts, and payout requirements
- Examine Part VIII for key personnel compensation and board structure
- Look for trends across multiple years to understand giving patterns
About This Foundation Profile
This comprehensive foundation profile for The Endurance Fund is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.
Data Sources & Accuracy
All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.
Research Applications
Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.
Data Currency: Last updated
February 2026
based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.