| MORRIS AND GWENDOLYN CAFRITZ FOUNDATION | WASHINGTON, DC | program funder | 8 |
| JANE BANCROFT ROBINSON FOUNDATION INC | WASHINGTON, DC | program funder | 7 |
| CLARK CHARITABLE FOUNDATION INC | BETHESDA, MD | program funder | 6 |
| UNITED WAY OF THE NATIONAL CAPITAL AREA | VIENNA, VA | program funder | 6 |
| ADVENTIST HEALTHCARE INC | GAITHERSBURG, MD | program funder | 5 |
| KAISER FOUNDATION HEALTH PLAN OF THE MID ATLANTIC STATES INC | HYATTSVILLE, MD | program funder | 5 |
| EUGENE & AGNES E MEYER FOUNDATION | WASHINGTON, DC | program funder | 4 |
| THE WASHINGTON HOME INC | WASHINGTON, DC | program funder | 4 |
| ASSOCIATION OF AMERICAN MEDICAL COLLEGES | WASHINGTON, DC | program funder | 3 |
| DELTA DENTAL COMMUNITY CARE FOUNDATION | SAN FRANCISCO, CA | program funder | 3 |
| DISTRICT OF COLUMBIA PRIMARY CARE ASSOCIATION | WASHINGTON, DC | program funder | 3 |
| GALENA-YORKTOWN FOUNDATION | WASHINGTON, DC | program funder | 3 |
| GATES FOUNDATION | SEATTLE, WA | large program funder | 3 |
| HEALTHCARE INITIATIVE FOUNDATION | GERMANTOWN, MD | program funder | 3 |
| HOWARD UNIVERSITY | WASHINGTON, DC | program funder | 3 |
| NAOMI AND NEHEMIAH COHEN FOUNDATION VIRGINIA CORPORATION | BETHESDA, MD | program funder | 3 |
| PHARMACEUTICAL RESEARCH AND MANUFACTURERS OF AMERICA | WASHINGTON, DC | program funder | 3 |
| ROCKEFELLER FOUNDATION | NEW YORK, NY | large program funder | 3 |
| SUBURBAN HOSPITAL INCORPORATED | BETHESDA, MD | program funder | 3 |
| VENABLE BAETJER AND HOWARD FOUNDATION | BALTIMORE, MD | program funder | 3 |
| 1988 IRREVOCABLE COCHRANE MEMORIAL TRUST | SAINT PAUL, MN | program funder | 2 |
| ALICE & EUGENE FORD FOUNDATION INC | MILLERSVILLE, MD | program funder | 2 |
| AMERICAN DIABETES ASSOCIATION INC | ARLINGTON, VA | program funder | 2 |
| AMERICAN FEDERATION OF STATE COUNTY & MUNICIPAL EMPLOYEES | WASHINGTON, DC | program funder | 2 |
| AMERICAN HOSPITAL ASSOCIATION INC | CHICAGO, IL | program funder | 2 |