The Winslow Family Foundation makes relatively large, unrestricted general operating grants to a small set of organizations spanning biomedical research, regional community infrastructure in Hawaii, conservation, and animal/health nonprofits. Their giving mixes national research and higher-education beneficiaries with place-based philanthropy in Hawaii, and they occasionally repeat funding to favored grantees.
Concentrated, relatively large general operating grants to a small number of recipients; mix of national institutional grantees and local Hawaii-focused organizations with at least one repeat grantee.
Winslow Family Foundation’s recent giving is defined by a mix of large general operating grants to a small set of repeat recipients and place-based support in Hawaii. The biggest recent award in the dataset is $190,000 to Monies for Bunnies in Sausalito, followed by $125,000 to Gladstone Institutes in San Francisco and $100,000 to Hawaii Community Foundation in Honolulu. Across the top grants, the foundation uses unrestricted support rather than project-specific awards, which points to a funding style centered on organizational capacity and core operations. The portfolio also includes conservation, health, education, and community infrastructure. The Nature Conservancy received $75,000 for general operating support, while UCSF Health and UCSF Foundation each appear as named recipients, along with Queen’s North Hawaii Community Hospital in Kamuela and North Hawaii Community Hospital in Waimea. Recurring support shows up in the repeat grants to Monies for Bunnies, Inspiring Wellness, and UC Berkeley Foundation, suggesting that the foundation maintains ongoing relationships with a limited set of organizations rather than dispersing funding broadly.
Biomedical research is one of the clearest themes in the foundation’s giving. Gladstone Institutes received $125,000 for general operating support, and UCSF Health and UCSF Foundation each appear among the recent grants list, showing a connection to research and academic medicine. Hawaii-based community and health infrastructure is another visible area. Hawaii Community Foundation received $100,000 for general operating support, while Queen’s North Hawaii Community Hospital received $25,000 in 2024 and $20,000 in 2025, and North Hawaii Community Hospital received $20,000 in 2024. The foundation also supports conservation and animal welfare. The Nature Conservancy received $75,000, Hui Aloha Kiholo received $10,000, and Monies for Bunnies received $190,000 in 2025 and $115,000 in 2024, both as general operating support. Higher education appears as well through UC Berkeley Foundation, Yale Alumni Fund, The Blake School, and Howard Business School.
The foundation’s typical grant size centers on mid-sized unrestricted awards: p25 is $5,000, median is $20,000, and p75 is $30,000. Recent grants also include larger outliers, with multiple awards above $100,000. The pattern suggests concentrated support rather than many small checks. Several recipients appear more than once, including Monies for Bunnies, Inspiring Wellness, UC Berkeley Foundation, Koi Pond Bridge Fund, Purna Wellness Center, American Cancer Society, and Queen’s North Hawaii Community Hospital. That repeat pattern indicates ongoing relationships with select organizations. The funder is classified as a regular funder, and the grants shown are general operating support rather than program-specific awards.
$310K
$6.9M
$106K
$349K
Most grants fall between $5K and $30K, with a median of $20K.
25th Percentile
$5K
Median
$20K
75th Percentile
$30K
About 21% of grants go to recipients in CA.
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Notable grantees: MONIES FOR BUNNIES, Gladstone Institutes, Hawaii Community Foundation, The Nature Conservancy, Yale Alumni Fund
Grantmaking is regional and entirely domestic in the recent sample, with all listed grants going to U.S. recipients. California appears most often by grant count, with multiple recipients in Sausalito, San Francisco, Berkeley, San Rafael, Petaluma, and other California cities. Hawaii is also prominent, including Honolulu, Kamuela, and Waimea. Outside those states, the list includes grants to New Haven, Provo, Minneapolis, Washington, DC, and Atlanta, showing a broad but selective U.S. footprint.
Recent grants are overwhelmingly general operating awards. The dataset shows unrestricted support to organizations such as Monies for Bunnies, Gladstone Institutes, and Hawaii Community Foundation, which suggests the foundation often funds core operations rather than named projects.
Biomedical research, Hawaii community and health infrastructure, conservation, animal welfare, and higher education all appear repeatedly. Examples include Gladstone Institutes at $125,000, Hawaii Community Foundation at $100,000, The Nature Conservancy at $75,000, and Monies for Bunnies at $190,000.
Yes. Several recipients appear in multiple years, including Monies for Bunnies, Inspiring Wellness, UC Berkeley Foundation, Koi Pond Bridge Fund, Purna Wellness Center, American Cancer Society, and Queen’s North Hawaii Community Hospital.
The foundation’s typical grant size is $5,000 at the 25th percentile, $20,000 at the median, and $30,000 at the 75th percentile. That puts most awards in a mid-sized range, with some larger grants above $100,000.
California is the top state by grant count. The recent list includes multiple recipients in Sausalito, San Francisco, Berkeley, San Rafael, and Petaluma, while Hawaii is also a major recipient state with organizations in Honolulu, Kamuela, and Waimea.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| MONIES FOR BUNNIES | SAUSALITO, CA | $190,000 | 2025 | GENERAL OPERATING |
| INSPIRING WELLNESS | SAUSALITO, CA | $30,000 | 2025 | GENERAL OPERATING |
| QUEEN'S NORTH HAWAII COMMUNITY HOSPITAL | KAMUELA, HI | $20,000 | 2025 | GENERAL OPERATING |
| UC BERKELEY FOUNDATION | BERKELEY, CA | $15,000 | 2025 | GENERAL OPERATING |
| KOI POND BRIDGE FUND | PROVO, UT | $10,157 | 2025 | GENERAL OPERATING |
| AMERICAN CANCER SOCIETY | ATLANTA, GA | $10,000 | 2025 | GENERAL OPERATING |
| PURNA WELLNESS CENTER | SAN RAFAEL, CA | $10,000 | 2025 | GENERAL OPERATING |
| KECK OBSERVATORY | WAIMEA, HI | $10,000 | 2025 | GENERAL OPERATING |
| ESTES PARK HEALTH FOUNDATION | ESTES PARK, CO | $5,000 | 2025 | GENERAL OPERATING |
| HIM4HER MINISTRIES | CHANHASSEN, MN | $5,000 | 2025 | GENERAL OPERATING |
| THE LINCOLN SOCIETY INC | NORTH HAVEN, CT | $5,000 | 2025 | GENERAL OPERATING |
| MONIES FOR BUNNIES | SAUSALITO, CA | $115,000 | 2024 | GENERAL OPERATING |
| KOI POND BRIDGE FUND | PROVO, UT | $50,000 | 2024 | GENERAL OPERATING |
| UC BERKELEY FOUNDATION | BERKELEY, CA | $30,000 | 2024 | GENERAL OPERATING |
| INSPIRING WELLNESS | SAUSALITO, CA | $30,000 | 2024 | GENERAL OPERATING |
| QUEEN'S NORTH HAWAII COMMUNITY HOSPITAL | KAMUELA, HI | $25,000 | 2024 | GENERAL OPERATING |
| PBS FOUNDATION | ARLINGTON, VA | $25,000 | 2024 | GENERAL OPERATING |
| THE BLAKE SCHOOL | MINNEAPOLIS, MN | $25,000 | 2024 | GENERAL OPERATING |
| NORTH HAWAII COMMUNITY HOSPITAL | WAIMEA, HI | $20,000 | 2024 | GENERAL OPERATING |
| HUI ALOHA KIHOLO | KAMUELA, HI | $10,000 | 2024 | GENERAL OPERATING |
| DAWN REDWOODS CHARITABLE TRUST | BELVEDERE TIBURON, CA | $5,000 | 2024 | GENERAL OPERATING |
| GLADSTONE INSTITUTES | SAN FRANCISCO, CA | $5,000 | 2024 | GENERAL OPERATING |
| KECK OBSERVATORY | WAIMEA, HI | $5,000 | 2024 | GENERAL OPERATING |
| NEW LIFE FAMILY SERVICES | RICHFIELD, MN | $5,000 | 2024 | GENERAL OPERATING |
| THE LINCOLN SOCIETY INC | NORTH HAVEN, CT | $5,000 | 2024 | GENERAL OPERATING |
| JIM SAUNDERS FUND | KAILUA KONA, HI | $5,000 | 2024 | GENERAL OPERATING |
| GLADSTONE INSTITUTES | SAN FRANCISCO, CA | $125,000 | 2023 | GENERAL OPERATING |
| HAWAII COMMUNITY FOUNDATION | HONOLULU, HI | $100,000 | 2023 | GENERAL OPERATING |
| THE NATURE CONSERVANCY | ARLINGTON, VA | $75,000 | 2023 | GENERAL OPERATING |
| INSPIRING WELLNESS | SAUSALITO, CA | $60,000 | 2023 | GENERAL OPERATING |
| YALE ALUMNI FUND | NEW HAVEN, CT | $60,000 | 2023 | GENERAL OPERATING |
| UC BERKELEY FOUNDATION | BERKELEY, CA | $30,000 | 2023 | GENERAL OPERATING |
| UCSF HEALTH | SAN FRANCISCO, CA | $25,000 | 2023 | GENERAL OPERATING |
| UCSF FOUNDATION | SAN FRANCISCO, CA | $25,000 | 2023 | GENERAL OPERATING |
| CINNABAR ART CORPORATION | PETALUMA, CA | $25,000 | 2023 | GENERAL OPERATING |
| PURNA WELLNESS CENTER | SAN RAFAEL, CA | $20,000 | 2023 | GENERAL OPERATING |
| HOWARD BUSINESS SCHOOL | WASHINGTON, DC | $15,000 | 2023 | GENERAL OPERATING |
| THAT MAN MAY SEE INC | SAN FRANCISCO, CA | $10,000 | 2023 | GENERAL OPERATING |
| AMERICAN CANCER SOCIETY | ATLANTA, GA | $10,000 | 2023 | GENERAL OPERATING |
| GLOBAL PEACE FILM FESTIVAL | WINTER PARK, FL | $5,000 | 2023 | GENERAL OPERATING |
| KECK OBSERVATORY | WAIMEA, HI | $5,000 | 2023 | GENERAL OPERATING |
| MARIN GENERAL HOSPITAL FOUNDATION | GREENBRAE, CA | $5,000 | 2023 | GENERAL OPERATING |
| ROCKY MOUNTAIN CONSERVANCY | ESTES PARK, CO | $5,000 | 2023 | GENERAL OPERATING |
| THE LINCOLN SOCIETY INC | NORTH HAVEN, CT | $5,000 | 2023 | GENERAL OPERATING |
MONIES FOR BUNNIES
$190,000GENERAL OPERATING
INSPIRING WELLNESS
$30,000GENERAL OPERATING
UC BERKELEY FOUNDATION
$15,000GENERAL OPERATING
KOI POND BRIDGE FUND
$10,157GENERAL OPERATING
AMERICAN CANCER SOCIETY
$10,000GENERAL OPERATING
PURNA WELLNESS CENTER
$10,000GENERAL OPERATING
KECK OBSERVATORY
$10,000GENERAL OPERATING
ESTES PARK HEALTH FOUNDATION
$5,000GENERAL OPERATING
HIM4HER MINISTRIES
$5,000GENERAL OPERATING
THE LINCOLN SOCIETY INC
$5,000GENERAL OPERATING
MONIES FOR BUNNIES
$115,000GENERAL OPERATING
KOI POND BRIDGE FUND
$50,000GENERAL OPERATING
INSPIRING WELLNESS
$30,000GENERAL OPERATING
THE BLAKE SCHOOL
$25,000GENERAL OPERATING
GLADSTONE INSTITUTES
$5,000GENERAL OPERATING
KECK OBSERVATORY
$5,000GENERAL OPERATING
THE LINCOLN SOCIETY INC
$5,000GENERAL OPERATING
JIM SAUNDERS FUND
$5,000GENERAL OPERATING
GLADSTONE INSTITUTES
$125,000GENERAL OPERATING
INSPIRING WELLNESS
$60,000GENERAL OPERATING
YALE ALUMNI FUND
$60,000GENERAL OPERATING
UC BERKELEY FOUNDATION
$30,000GENERAL OPERATING
UCSF HEALTH
$25,000GENERAL OPERATING
UCSF FOUNDATION
$25,000GENERAL OPERATING
CINNABAR ART CORPORATION
$25,000GENERAL OPERATING
PURNA WELLNESS CENTER
$20,000GENERAL OPERATING
HOWARD BUSINESS SCHOOL
$15,000GENERAL OPERATING
AMERICAN CANCER SOCIETY
$10,000GENERAL OPERATING
GLOBAL PEACE FILM FESTIVAL
$5,000GENERAL OPERATING
KECK OBSERVATORY
$5,000GENERAL OPERATING
THE LINCOLN SOCIETY INC
$5,000GENERAL OPERATING