
The Rathmann Family Foundation concentrates its giving into a small number of large grants, prioritizing science and technology recognition and conservation. Its largest, recurring support goes to the National Science and Technology Medals Foundation for general operating support, while significant gifts also fund coastal restoration in Massachusetts and protected-area conservation in Africa. Grants tend to be unrestricted/general operating or project-specific for visible conservation efforts.
Rathmann Family Foundation C/o Martinbrown Pllc centers its giving on a small set of large awards, with repeated support for the National Science and Technology Medals Foundation at $834,000 in 2023, 2024, and 2025 for general operating activities. That recurring grant sits alongside another defining stream: conservation funding, including $675,000 in 2025 to African Parks Foundation of America for general operating activities and a series of $500,000 grants to Buzzards Bay Coalition Inc for Gooseberry Causeway work. The foundation also backs university-linked and community-focused work, such as support for student emergency aid, identity-inclusive campus initiatives, and local environmental restoration. Its recent record shows a mix of unrestricted support and project-specific grants. General operating activities appear frequently, but the foundation also funds named projects tied to conservation, infrastructure, immigration legal services, and student support. Recipients range from national organizations in Washington, DC and New York to place-based nonprofits in Massachusetts, Connecticut, South Carolina, and California. The overall pattern is concentrated rather than diffuse, with several organizations appearing across multiple years and at amounts that move in clear tiers rather than small, frequent awards.
National science recognition is a core thread in the foundation’s giving. In 2025, it awarded $834,000 to National Science and Technology Medals Foundation for general operating activities, continuing the same grant amount given in 2024 and 2023. Environmental work appears in both conservation and restoration forms. National Audubon Society Inc received $50,000 in 2025 for Corkscrew Swamp rehabilitation, while African Parks Foundation of America received $675,000 in 2025 for general operating activities. The foundation also funds student and community support. Trustees of Trinity College received $130,000 in 2025 for the Student Emergency & Equity Fund, and Duke University received $50,000 in 2023 for Alliance for Identity-Inclusive Comp. Legal and immigration support is another supported area: Volunteers of Legal Service received $50,000 in 2024 and again in 2025 for Immigration Project general support.
$2.2M
$37M
$2.1M
$2.4M
Most grants fall between $30K and $100K, with a median of $50K.
25th Percentile
$30K
Median
$50K
75th Percentile
$100K
About 7% of grants go to recipients in MA.
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Concentrated, high-dollar giving to a very small number of organizations with repeated multi-grant relationships; favors large unrestricted/general operating support and targeted conservation project funding rather than many small awards.
Notable grantees: National Science and Technology Medals Foundation, Buzzards Bay Coalition, African Parks Foundation of America
Grant size clusters around large awards rather than many small ones: the typical grant is $30,000 at the 25th percentile, $50,000 at the median, and $100,000 at the 75th percentile. The foundation also makes much larger recurring commitments, including $834,000 annual grants and a $675,000 award in 2025. Several recipients appear across multiple years, which points to repeat support rather than one-time funding. The foundation gives through general operating activities and project-specific grants, and it also funds individuals. It does not make program-related investments. The active challenge programs described in the data are competitive and do not accept unsolicited applications.
The foundation gives nationally, with all listed recent grants going to U.S. recipients. The highest concentration by recipient location is in Rhode Island, even though the headquarters are in Naples, Florida. Recent grants also land in Washington, DC; New Bedford, Massachusetts; New York, New York; Hartford, Connecticut; and Ontario, California. The country distribution shown here is entirely domestic, with 45 grants in the United States.
The largest recurring awards go to National Science and Technology Medals Foundation, which received $834,000 in 2023, 2024, and 2025 for general operating activities. Other large grants went to African Parks Foundation of America for conservation-related general operating support and Buzzards Bay Coalition Inc for Gooseberry Causeway work.
Recent grants show repeated support for science recognition, conservation, student support, immigration legal services, and identity-inclusive campus work. Specific examples include a student emergency fund at Trinity College, immigration project support at Volunteers of Legal Service, and Corkscrew Swamp rehabilitation through National Audubon Society Inc.
Yes. Several recipients appear in multiple years, including National Science and Technology Medals Foundation in 2023, 2024, and 2025; Buzzards Bay Coalition Inc in 2023, 2024, and 2025; African Parks Foundation of America in 2023, 2024, and 2025; and Volunteers of Legal Service in 2024 and 2025.
The grant-size distribution centers on larger awards: $30,000 at the 25th percentile, $50,000 at the median, and $100,000 at the 75th percentile. The foundation also makes larger outlier grants, including $500,000, $675,000, and $834,000 awards.
The active challenge programs described in the data do not accept unsolicited applications. That applies to the Rathmann Challenge and the Even Bigger Idea follow-on grants, which are invitation- or recognition-based rather than open-call programs.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| NATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION | WASHINGTON, DC | $834,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| AFRICAN PARKS FOUNDATION OF AMERICA | NEW YORK, NY | $675,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| TRUSTEES OF TRINITY COLLEGE | HARTFORD, CT | $130,000 | 2025 | STUDENT EMERGENCY & EQUITY FUND |
| HUERTA DEL VALLE | ONTARIO, CA | $100,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| BUZZARDS BAY COALITION INC | NEW BEDFORD, MA | $100,000 | 2025 | WESTPORT, MA |
| CENTER FOR HEIRS PROPERTY PRESERVATION | CHARLESTON, SC | $75,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| HAVERFORD COLLEGE | HAVERFORD, PA | $60,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| NATIONAL AUDUBON SOCIETY INC | ANAHEIM, CA | $50,000 | 2025 | CORKSCREW SWAMP REHABILITATION |
| VOLUNTEERS OF LEGAL SERVICE | NEW YORK, NY | $50,000 | 2025 | IMMIGRATION PROJECT GEN SUPPORT |
| GNOME INC | FALL RIVER, MA | $35,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| BROWN UNIVERSITY | PROVIDENCE, RI | $33,500 | 2025 | SCHOLARSHIP FUND/ANNUAL FUND |
| ARTIS - NAPLES INC | NAPLES, FL | $25,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| NEW BEDFORD LIGHT | NEW BEDFORD, MA | $15,000 | 2025 | LOCAL ENVIRONMENTAL JOURNALISM |
| WESTPORT HISTORICAL SOCIETY | WESTPORT, MA | $15,000 | 2025 | GENERAL OPERATING ACTIVITIES |
| NATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION | WASHINGTON, DC | $834,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| BUZZARDS BAY COALITION INC | NEW BEDFORD, MA | $500,000 | 2024 | GOOSEBERRY CAUSEWAY |
| AFRICAN PARKS FOUNDATION OF AMERICA | NEW YORK, NY | $175,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| HUERTA DEL VALLE | ONTARIO, CA | $100,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| CENTER FOR HEIRS PROPERTY PRESERVATION | CHARLESTON, SC | $75,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| BUZZARDS BAY COALITION INC | NEW BEDFORD, MA | $75,000 | 2024 | WESTPORT, MA |
| NATIONAL AUDUBON SOCIETY INC | ANAHEIM, CA | $50,000 | 2024 | CORKSCREW SWAMP REHABILITATION |
| VOLUNTEERS OF LEGAL SERVICE | NEW YORK, NY | $50,000 | 2024 | IMMIGRATION PROJECT GEN SUPPORT |
| GNOME INC | FALL RIVER, MA | $35,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| BROWN UNIVERSITY | PROVIDENCE, RI | $33,500 | 2024 | SCHOLARSHIP FUND/ANNUAL FUND |
| TRUSTEES OF TRINITY COLLEGE | HARTFORD, CT | $30,000 | 2024 | STUDENT EMERGENCY & EQUITY FUND |
| ARTIS - NAPLES INC | NAPLES, FL | $25,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| DHARMA VOYAGE INC | WESTPORT, MA | $25,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| WESTPORT HISTORICAL SOCIETY | WESTPORT, MA | $15,000 | 2024 | GENERAL OPERATING ACTIVITIES |
| NEW BEDFORD LIGHT | NEW BEDFORD, MA | $15,000 | 2024 | LOCAL ENVIRONMENTAL JOURNALISM |
| NATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION | WASHINGTON, DC | $834,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| BUZZARDS BAY COALITION INC | NEW BEDFORD, MA | $500,000 | 2023 | GOOSEBERRY CAUSEWAY |
| AFRICAN PARKS FOUNDATION OF AMERICA | NEW YORK, NY | $175,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| TRUSTEES OF TRINITY COLLEGE | HARTFORD, CT | $100,000 | 2023 | SOFTBALL/BASEBALL/ANNUAL FUND |
| HUERTA DEL VALLE | ONTARIO, CA | $100,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| BUZZARDS BAY COALITION INC | NEW BEDFORD, MA | $75,000 | 2023 | WESTPORT, MA |
| CORPORATION OF HAVERFORD COLLEGE DBA HAVERFORD COLLEGE | HAVERFORD, PA | $60,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| DUKE UNIVERSITY | DURHAM, NC | $50,000 | 2023 | ALLIANCE FOR IDENTITY-INCLUSIVE COMP |
| NATIONAL AUDUBON SOCIETY INC | ANAHEIM, CA | $50,000 | 2023 | CORKSCREW SWAMP REHABILITATION |
| CENTER FOR HEIRS PROPERTY PRESERVATION | CHARLESTON, SC | $40,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| VOLUNTEERS OF LEGAL SERVICE | NEW YORK, NY | $40,000 | 2023 | IMMIGRATION PROJECT GEN SUPPORT |
| BROWN UNIVERSITY | PROVIDENCE, RI | $33,500 | 2023 | SCHOLARSHIP FUND/ANNUAL FUND |
| ARTIS - NAPLES INC | NAPLES, FL | $25,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| DHARMA VOYAGE INC | WESTPORT, MA | $25,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| GNOME INC | FALL RIVER, MA | $25,000 | 2023 | GENERAL OPERATING ACTIVITIES |
| WESTPORT HISTORICAL SOCIETY | WESTPORT, MA | $15,000 | 2023 | GENERAL OPERATING ACTIVITIES |
NATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION
$834,000GENERAL OPERATING ACTIVITIES
TRUSTEES OF TRINITY COLLEGE
$130,000STUDENT EMERGENCY & EQUITY FUND
HUERTA DEL VALLE
$100,000GENERAL OPERATING ACTIVITIES
GENERAL OPERATING ACTIVITIES
HAVERFORD COLLEGE
$60,000GENERAL OPERATING ACTIVITIES
NATIONAL AUDUBON SOCIETY INC
$50,000CORKSCREW SWAMP REHABILITATION
BROWN UNIVERSITY
$33,500SCHOLARSHIP FUND/ANNUAL FUND
ARTIS - NAPLES INC
$25,000GENERAL OPERATING ACTIVITIES
WESTPORT HISTORICAL SOCIETY
$15,000GENERAL OPERATING ACTIVITIES
NATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION
$834,000GENERAL OPERATING ACTIVITIES
HUERTA DEL VALLE
$100,000GENERAL OPERATING ACTIVITIES
NATIONAL AUDUBON SOCIETY INC
$50,000CORKSCREW SWAMP REHABILITATION
BROWN UNIVERSITY
$33,500SCHOLARSHIP FUND/ANNUAL FUND
TRUSTEES OF TRINITY COLLEGE
$30,000STUDENT EMERGENCY & EQUITY FUND
ARTIS - NAPLES INC
$25,000GENERAL OPERATING ACTIVITIES
DHARMA VOYAGE INC
$25,000GENERAL OPERATING ACTIVITIES
WESTPORT HISTORICAL SOCIETY
$15,000GENERAL OPERATING ACTIVITIES
NATIONAL SCIENCE AND TECHNOLOGY MEDALS FOUNDATION
$834,000GENERAL OPERATING ACTIVITIES
TRUSTEES OF TRINITY COLLEGE
$100,000SOFTBALL/BASEBALL/ANNUAL FUND
HUERTA DEL VALLE
$100,000GENERAL OPERATING ACTIVITIES
GENERAL OPERATING ACTIVITIES
NATIONAL AUDUBON SOCIETY INC
$50,000CORKSCREW SWAMP REHABILITATION
ARTIS - NAPLES INC
$25,000GENERAL OPERATING ACTIVITIES
DHARMA VOYAGE INC
$25,000GENERAL OPERATING ACTIVITIES
WESTPORT HISTORICAL SOCIETY
$15,000GENERAL OPERATING ACTIVITIES