| AMERICAN PUBLIC GARDENS ASSOCIATION | WILMINGTON, DE | program funder | 1 |
| BUCKLEY FAMILY ENDOWMENT INC | ARLINGTON, VA | program funder | 1 |
| BURPEE FOUDATION INC | LENOX, MA | program funder | 1 |
| C K WILLIAMS FOUNDATION | PITTSBURGH, PA | program funder | 1 |
| CASEY TREES | WASHINGTON, DC | program funder | 1 |
| CHARLES H MILLER CHARITABLE FOUNDATION | GLENELG, MD | program funder | 1 |
| CONGRESSIONAL SPORTS FOR CHARITY | ALEXANDRIA, VA | program funder | 1 |
| CORINA HIGGINSON TRUST | CHARLOTT HALL, MD | program funder | 1 |
| CORN REFINERS ASSOCIATION INC | WASHINGTON, DC | program funder | 1 |
| CROPLIFE AMERICA | ARLINGTON, VA | program funder | 1 |
| DIMICK FOUNDATION | BETHESDA, MD | program funder | 1 |
| FRANK AND EVELYN SCHMIDT FAMILY FOUNDATION | BORING, OR | program funder | 1 |
| FREDERICK AND DIANA PRINCE FOUNDATION | WASHINGTON, DC | program funder | 1 |
| FRIENDS OF THE NATIONAL ARBORETUM INC | WASHINGTON, DC | program funder | 1 |
| HARMAN CAIN FOUNDATION | NEEDHAM, MA | program funder | 1 |
| HAROLD RUBENSTEIN FAMILY CHARITABLE FOUNDATION | WASHINGTON, DC | program funder | 1 |
| HUMANITIES COUNCIL OF WASHINGTON DC INC | WASHINGTON, DC | program funder | 1 |
| INTERNATIONAL PAPER COMPANY FOUNDATION | MEMPHIS, TN | program funder | 1 |
| JEAN T AND HEYWARD G PELHAM FOUNDATION | WILMINGTON, DE | program funder | 1 |
| KOCHES FAMILY FOUNDATION INC | NAPLES, FL | program funder | 1 |
| LLOYD E MITCHELL FOUNDATION | CHEVY CHASE, MD | program funder | 1 |
| MALKIN FUND INC | NEW YORK, NY | program funder | 1 |
| MARS HQ REGIONAL FOUNDATION | NEW YORK, NY | program funder | 1 |
| MONUMENTAL SPORTS & ENTERTAINMENT FOUNDATION | WASHINGTON, DC | program funder | 1 |
| MORRIS AND GWENDOLYN CAFRITZ FOUNDATION | WASHINGTON, DC | program funder | 1 |