The Horn Foundation concentrates on large, general-support grants to national institutions working on environmental/climate advocacy, public engagement, and cultural leadership. Its giving mixes high-profile environmental organizations with major arts and higher-education institutions, suggesting interest in climate policy and storytelling/leadership capacity building through film and top-tier universities.
The Horn Foundation C/o Cp Management’s recent grantmaking is anchored by a $2,000,000 general grant to NRDC, alongside large awards to organizations working on climate advocacy, public engagement, film, and higher education. That mix points to a funder that supports institutions with broad reach rather than narrow project-by-project funding. In the climate space, the foundation backs policy and leadership groups; in the cultural sphere, it supports film institutions that shape public discourse. It also appears in university and business-school grant records, suggesting an interest in leadership development and academic programs tied to public-facing influence. The foundation’s grants are generally unrestricted in the data provided, and several recipients appear more than once across the 2023 and 2025 records. Awards range from six figures to multimillion-dollar scale, with repeated support for national organizations such as The Climate Reality Project and Sundance Institute. Its portfolio also includes universities, arts institutions, and civic groups, showing a pattern of support for established organizations with national visibility and institutional capacity.
Climate advocacy is one of the clearest areas in the record. The foundation gave $2,000,000 to NRDC for general support, and later awarded $125,000 to the same organization. It also backed The Wilderness Society with $100,000 and World Wildlife Fund with $100,000, both as general grants. Public engagement and leadership training also show up in the data. The Climate Reality Project received $500,000 in 2023 and $300,000 in 2025. On the cultural side, Sundance Institute received $550,000 in both 2023 and 2025, indicating continued support for film and storytelling institutions. Higher education appears as another lane, with grants to Harvard Business School and Duke University.
Typical grant size sits at $5,250 at the 25th percentile, a median of $16,650, and $50,000 at the 75th percentile, but the recent records also include much larger outliers in the six- and seven-figure range. The foundation’s grantmaking shows repeat relationships: Sundance Institute, The Climate Reality Project, NRDC, Howard University, and Archer School for Girls each appear in more than one year. The Horn Foundation C/o Cp Management is classified as a regular funder, not a DAF, and it does not fund individuals or make program-related investments. The grants listed are largely general support.
$2.4M
$57M
$3.5M
$2.8M
Most grants fall between $5K and $50K, with a median of $17K.
25th Percentile
$5K
Median
$17K
75th Percentile
$50K
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Concentrated, large-dollar general operating gifts to a small set of repeat, high-profile national organizations rather than many small local grants.
Notable grantees: Natural Resources Defense Council (NRDC), Sundance Institute, The Climate Reality Project, Harvard Business School, Duke University
Grantmaking is heavily concentrated in the United States, with all listed recipient-country grants going to US organizations. Within that, Washington, DC appears frequently, including grants to The Climate Reality Project, People for the American Way, The Wilderness Society, World Wildlife Fund, State Leadership Project, Lcv Education Fund, and the National Breast Cancer Coalition. Los Angeles also stands out through awards to Afi, The Music Center, La Philharmonic Association, Greater Los Angeles Zoo Association, Los Angeles Police Foundation, and Archer School for Girls. Other recurring cities include New York, Boston, and Durham.
Its recent grants emphasize climate and environmental advocacy, public engagement and leadership training, independent film and storytelling institutions, and elite higher-education or business-school programs. The record also includes grants to civic and cultural institutions, all as general support.
Yes. Several recipients appear in both 2023 and 2025, including Sundance Institute, The Climate Reality Project, NRDC, Howard University, and Archer School for Girls. That pattern suggests recurring relationships rather than isolated one-time gifts.
The listed distribution shows a 25th percentile of $5,250, a median of $16,650, and a 75th percentile of $50,000. The recent grants also include much larger awards, including seven-figure and mid-six-figure grants.
The grant record is entirely US-based, and Washington, DC appears most often among recipient locations. Los Angeles is also a frequent destination, followed by New York, Boston, and Durham.
The recent grants shown are almost entirely marked as general support. That pattern appears across climate, arts, education, and civic recipients, including the foundation’s larger awards.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| SUNDANCE INSTITUTE | NEW YORK, NY | $550,000 | 2025 | GENERAL |
| HARVARD BUSINESS SCHOOL | BOSTON, MA | $355,000 | 2025 | GENERAL |
| DUKE UNIVERSITY | DURHAM, NC | $315,000 | 2025 | GENERAL |
| THE CLIMATE REALITY PROJECT | WASHINGTON, DC | $300,000 | 2025 | GENERAL |
| HOWARD UNIVERSITY | BOSTON, MA | $200,000 | 2025 | GENERAL |
| NRDC | NEW YORK, NY | $125,000 | 2025 | GENERAL |
| WORLD WILDLIFE FUND | WASHINGTON, DC | $100,000 | 2025 | GENERAL |
| THE WILDERNESS SOCIETY | WASHINGTON, DC | $100,000 | 2025 | GENERAL |
| AFI | LOS ANGELES, CA | $100,000 | 2025 | GENERAL |
| STATE LEADERSHIP PROJECT | RALEIGH, NC | $100,000 | 2025 | GENERAL |
| ARCHER SCHOOL FOR GIRLS | LOS ANGELES, CA | $75,000 | 2025 | GENERAL |
| LCV EDUCATION FUND | WASHINGTON, DC | $50,000 | 2025 | GENERAL |
| LA PHILHARMONIC ASSOCIATION | LOS ANGELES, CA | $50,000 | 2025 | GENERAL |
| DUKE MEMORIAL UNITED METHODIST CHURCH | DURHAM, NC | $50,000 | 2025 | GENERAL |
| GREATER LOS ANGELES ZOO ASSOCIATION | LOS ANGELES, CA | $50,000 | 2025 | GENERAL |
| NATIONAL BREAST CANCER COALITION | WASHINGTON, DC | $50,000 | 2025 | GENERAL |
| CAPTAIN PLANET FOUNDATION | ATLANTA, GA | $50,000 | 2025 | GENERAL |
| GEFFEN PLAYHOUSE | LOS ANGELES, CA | $35,000 | 2025 | GENERAL |
| AUTRY NATIONAL MUSEUM | LOS ANGELES, CA | $35,000 | 2025 | GENERAL |
| RACE TO ERASE MS | LOS ANGELES, CA | $25,000 | 2025 | GENERAL |
| HEAL THE BAY | SANTA MONICA, CA | $25,000 | 2025 | GENERAL |
| UNION COLLEGE | SCHENECTADY, NY | $25,000 | 2025 | GENERAL |
| UNITED FRIENDS OF THE CHILDREN | LOS ANGELES, CA | $25,000 | 2025 | GENERAL |
| NYU GROSSMAN SCHOOL OF MEDICINE | NEW YORK CITY, NY | $25,000 | 2025 | GENERAL |
| MOTION PICTURE & TELEVISION FUND | WOODLAND HILLS, CA | $25,000 | 2025 | GENERAL |
| SAN DIEGO ZOO WILDLIFE ALLIANCE | SAN DIEGO, CA | $25,000 | 2025 | GENERAL |
| JOHN THOMAS DYE SCHOOL | LOS ANGELES, CA | $25,000 | 2025 | GENERAL |
| TREE PEOPLE | BEVERLY HILLS, CA | $25,000 | 2025 | GENERAL |
| PEOPLE FOR THE AMERICAN WAY | WASHINGTON, DC | $25,000 | 2025 | GENERAL |
| WOMEN'S GUILD CEDARS-SINAI | BEVERLY HILLS, CA | $20,000 | 2025 | GENERAL |
| THE NEST SCHOOL | LOS ANGELES, CA | $15,000 | 2025 | GENERAL |
| CHILDREN'S INSTITUTE | LOS ANGELES, CA | $15,000 | 2025 | GENERAL |
| ALLIANCE FOR THE WILD ROCKIES | HELENA, MT | $13,750 | 2025 | GENERAL |
| OCEANA | WASHINGTON, DC | $10,000 | 2025 | GENERAL |
| SUMMER STARS | NORWELL, MA | $10,000 | 2025 | GENERAL |
| WILDAID | SAN FRANCISCO, CA | $10,000 | 2025 | GENERAL |
| HUMAN RIGHTS WATCH | LOS ANGELES, CA | $10,000 | 2025 | GENERAL |
| SAVE THE CHILDREN | FAIRFIELD, CT | $10,000 | 2025 | GENERAL |
| AMERICAN HEART ASSOCIATION | DALLAS, TX | $10,000 | 2025 | GENERAL |
| PBS SOCAL | COSTA MESA, CA | $10,000 | 2025 | GENERAL |
| NATIONAL PARKS CONSERVATION ASSOCIATION | WASHINGTON, DC | $10,000 | 2025 | GENERAL |
| KEEP BEL AIR BEAUTIFUL | BEL AIR, CA | $10,000 | 2025 | GENERAL |
| SEVA FOUNDATION | BERKELEY, CA | $8,000 | 2025 | GENERAL |
| CHLA | LOS ANGELES, CA | $7,500 | 2025 | GENERAL |
| CITY YEAR INC | BOSTON, MA | $5,000 | 2025 | GENERAL |
| THE CHARLOTTE & GWENYTH GRAY FOUNDATION | PACIFIC PALISADES, CA | $5,000 | 2025 | GENERAL |
| GLACIER NATIONAL PARK CONSERVANCY | COLUMBIA FALLS, MT | $5,000 | 2025 | GENERAL |
| THE ROOSEVELT INSTITUTE | NEW YORK CITY, NY | $5,000 | 2025 | GENERAL |
| MONTANA LAND RELIANCE | HELENA, MT | $5,000 | 2025 | GENERAL |
| RIDEBANK RISE INC | LOS ANGELES, CA | $5,000 | 2025 | GENERAL |
SUNDANCE INSTITUTE
$550,000GENERAL
HARVARD BUSINESS SCHOOL
$355,000GENERAL
GENERAL
DUKE MEMORIAL UNITED METHODIST CHURCH
$50,000GENERAL
NATIONAL BREAST CANCER COALITION
$50,000GENERAL
AUTRY NATIONAL MUSEUM
$35,000GENERAL
RACE TO ERASE MS
$25,000GENERAL
MOTION PICTURE & TELEVISION FUND
$25,000GENERAL
PEOPLE FOR THE AMERICAN WAY
$25,000GENERAL
THE NEST SCHOOL
$15,000GENERAL
ALLIANCE FOR THE WILD ROCKIES
$13,750GENERAL
SUMMER STARS
$10,000GENERAL
HUMAN RIGHTS WATCH
$10,000GENERAL
SAVE THE CHILDREN
$10,000GENERAL
PBS SOCAL
$10,000GENERAL
KEEP BEL AIR BEAUTIFUL
$10,000GENERAL
THE CHARLOTTE & GWENYTH GRAY FOUNDATION
$5,000GENERAL
RIDEBANK RISE INC
$5,000GENERAL