The Michael Antonov Charitable Foundation concentrates its giving on research-oriented organizations, with a strong tilt toward computational/software infrastructure and biomedical/clinical research. Grants are directed to universities, medical centers, research institutes and a prominent software foundation, suggesting interest in enabling science through both technological tools and translational health research. The foundation makes relatively large, targeted gifts rather than many small donations.
Michael Antonov Charitable Foundation Inc makes large, targeted gifts to organizations working on research infrastructure, translational biomedical science, and human longevity-centered research. Its biggest recent grants went to Entropy Software Foundation, including $1,350,000 in 2025 and $1,220,000 in 2023, signaling sustained support for software tools and open-source infrastructure. The foundation also backs biomedical institutions and research organizations such as UCSF Foundation, Brigham and Womens Hospital, Buck Institute for Research, and Foresite Institute. That mix points to a funder interested in the systems that enable science as well as the research itself. The grant record shows a pattern of institutional giving at a relatively high dollar level, with gifts directed to universities, hospitals, independent research institutes, and a software foundation. Recipients include both West Coast and East Coast organizations, and the foundation’s named program centers on human longevity-centered research through grants and gifts to 501(c)(3) organizations. The overall profile is of a foundation funding specific scientific and technical capacity rather than broad charitable programs.
Open-source and research-focused software infrastructure is a visible theme. In 2025, the foundation gave $1,350,000 to Entropy Software Foundation, and it had already given $1,220,000 to the same organization in 2023. That repeated support stands out as a clear investment in software infrastructure. Biomedical and clinical research is another major area. The foundation gave $320,000 to UCSF Foundation in 2023 and $287,000 to Brigham and Womens Hospital in 2023, linking its grantmaking to university and hospital-based research environments. Aging and longevity research also appears directly in the grant list. The foundation awarded $250,000 to Buck Institute for Research in 2023 and another $200,000 in 2025, showing ongoing support for an independent institute focused on that field.
Typical grants are substantial: the 25th percentile is $237,500, the median is $250,000, and the 75th percentile is $295,250. The recent record also includes larger outliers, including multi-hundred-thousand-dollar gifts and one seven-figure grant. This is a regular funder, not a DAF, and it does not fund individuals or make program-related investments. The same recipient can appear across multiple years, as seen in repeat support to Entropy Software Foundation and Buck Institute for Research. The active program described here accepts grants and gifts for 501(c)(3) organizations, and unsolicited applications are not accepted.
$2.4M
$21.1M
$1.3M
$2.4M
Most grants fall between $238K and $295K, with a median of $250K.
25th Percentile
$238K
Median
$250K
75th Percentile
$295K
About 21% of grants go to recipients in CA.
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Concentrated, high-dollar gifts to a small number of organizations; repeat funding to at least one core grantee (Entropy Software Foundation) and consistent support for research-focused institutions rather than broad community-based charities.
Notable grantees: Entropy Software Foundation, UCSF Foundation, Buck Institute for Research, Foresite Institute, Brigham and Women's Hospital
Grants are concentrated in the United States, and California is the top state by grant count. Recent recipients include San Francisco, Novato, Boston, Rochester, Las Vegas, Cambridge, Burlington, and Woodbury. New York recipients account for 25% of grants in the home state, but the highest volume of giving goes to California organizations such as San Francisco- and Novato-based grantees. The country distribution shows 14 grants, all in the US.
Its recent grants go to research universities, medical centers, independent research institutes, and a software foundation. Named recipients include UCSF Foundation, Brigham and Womens Hospital, Buck Institute for Research, Foresite Institute, and Entropy Software Foundation.
The grant-size distribution is concentrated at a relatively high level: the 25th percentile is $237,500, the median is $250,000, and the 75th percentile is $295,250.
Yes. Entropy Software Foundation appears in both 2023 and 2025 with grants of $1,220,000 and $1,350,000, and Buck Institute for Research appears in 2023 and 2025 with $250,000 and $200,000.
No. The foundation does not fund individuals. Its active program is aimed at grants and gifts to 501(c)(3) organizations.
Its geographic scope is regional, with all listed recent grants going to US recipients. California receives the most grants by count, and New York recipients account for 25% of grants in the home state.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| ENTROPY SOFTWARE FOUNDATION | WOODBURY, NY | $1,350,000 | 2025 | DONATION |
| FORESITE INSTITUTE | SAN FRANCISCO, CA | $307,500 | 2025 | DONATION |
| MARICI | SAN FRANCISCO, CA | $250,000 | 2025 | DONATION |
| BUCK INSTITUTE FOR RESEARCH | NOVATO, CA | $200,000 | 2025 | DONATION |
| ILLUMINATE THE ARTS | SAN FRANCISCO, CA | $200,000 | 2025 | DONATION |
| CITY OF SMILE USA INC | BURLINGTON, MA | $50,000 | 2025 | DONATION |
| ENTROPY SOFTWARE FOUNDATION | WOODBURY, NY | $1,150,000 | 2024 | DONATION |
| NORN GROUP | SAN FRANCISCO, CA | $250,000 | 2024 | DONATION |
| MARICI | SAN FRANCISCO, CA | $250,000 | 2024 | DONATION |
| UNIVERSITY OF ROCHESTER | ROCHESTER, NY | $100,000 | 2024 | DONATION |
| NA KOA MANU CONSERVATION INC | PUKALANI, HI | $75,000 | 2024 | DONATION |
| LEGACY GLOBAL PROGRAMS | MESA, AZ | $50,000 | 2024 | DONATION |
| ALBERT EINSTEIN COLLEGE OF MEDICINE | BRONX, NY | $6,830 | 2024 | DONATION |
| FORESITE INSTITUTE | SAN FRANCISCO, CA | $5,000 | 2024 | DONATION |
| UNIVERSITY OF MARYLAND STARTUP SHEL | ADELPHI, MD | $4,000 | 2024 | DONATION |
| GABRIELLE'S ANGEL FOUNDATION | NEW YORK, NY | $3,296 | 2024 | DONATION |
| ENTROPY SOFTWARE FOUNDATION | WOODBURY, NY | $1,220,000 | 2023 | DONATION |
| UCSF FOUNDATION | SAN FRANCISCO, CA | $320,000 | 2023 | DONATION |
| BRIGHAM AND WOMENS HOSPITAL | BOSTON, MA | $287,000 | 2023 | DONATION |
| UNIVERSITY OF ROCHESTER | ROCHESTER, NY | $250,000 | 2023 | DONATION |
| NORN GROUP | SAN FRANCISCO, CA | $250,000 | 2023 | DONATION |
| BUCK INSTITUTE FOR RESEARCH | NOVATO, CA | $250,000 | 2023 | DONATION |
| THE GIVING BANK FUNDAI FOUNDATION | LAS VEGAS, NV | $200,000 | 2023 | DONATION |
| ACADEMICS FOR THE FUTURE OF SCIENCE | CAMBRIDGE, MA | $2,500 | 2023 | DONATION |
ENTROPY SOFTWARE FOUNDATION
$1,350,000DONATION
FORESITE INSTITUTE
$307,500DONATION
ILLUMINATE THE ARTS
$200,000DONATION
CITY OF SMILE USA INC
$50,000DONATION
ENTROPY SOFTWARE FOUNDATION
$1,150,000DONATION
NORN GROUP
$250,000DONATION
UNIVERSITY OF ROCHESTER
$100,000DONATION
NA KOA MANU CONSERVATION INC
$75,000DONATION
FORESITE INSTITUTE
$5,000DONATION
UNIVERSITY OF MARYLAND STARTUP SHEL
$4,000DONATION
ENTROPY SOFTWARE FOUNDATION
$1,220,000DONATION
BRIGHAM AND WOMENS HOSPITAL
$287,000DONATION
UNIVERSITY OF ROCHESTER
$250,000DONATION
NORN GROUP
$250,000DONATION
BUCK INSTITUTE FOR RESEARCH
$250,000DONATION
THE GIVING BANK FUNDAI FOUNDATION
$200,000DONATION
ACADEMICS FOR THE FUTURE OF SCIENCE
$2,500DONATION