| AMERICAN ASSOCIATION OF BLOOD BANKS | $17,686,522 | $18,268,259 |
| EDITORIAL PROJECTS IN EDUCATION INC | $20,403,135 | $16,066,603 |
| AMERICAN COLLEGE OF GASTROENTEROLOGY | $23,397,811 | $15,632,689 |
| SIGHTSAVERS INC | $15,521,735 | $15,460,129 |
| BETHESDA COUNTRY CLUB INC | $14,336,200 | $14,901,683 |
| PARENTERAL DRUG ASSOCIATION INC | $12,218,515 | $14,012,166 |
| AMERICAN ASSOCIATION OF COLLEGES OF OSTEOPATHIC MEDICINE | $15,854,635 | $13,852,823 |
| AMERICAN PODIATRIC MEDICAL ASSOCIATION | $13,427,116 | $13,629,787 |
| NATIONAL CAPITAL AREA COUNCIL BOY SCOUTS OF AMERICA | $13,362,242 | $12,208,421 |
| MANAGEMENT LEADERSHIP FOR TOMORROW INC | $14,007,418 | $12,134,361 |
| WASHINGTON EPISCOPAL DAY SCHOOL INC | $11,522,115 | $11,529,932 |
| AMERICAN COLLEGE OF MEDICAL GENETICS AND GENOMICS | $11,176,041 | $10,866,369 |
| IMPACT ISRAEL INC | $9,199,803 | $9,652,287 |
| ALLEY CAT ALLIES INC | $10,905,204 | $9,605,341 |
| CHILDRENS INN AT NIH INC | $8,998,704 | $9,103,957 |
| SNV USA | $8,855,621 | $9,041,895 |
| BRIDGES FROM SCHOOL TO WORK INC | $9,494,528 | $8,649,355 |
| OUR LADY OF THE WOODS CORPORATION | $8,002,669 | $8,049,580 |
| WASHINGTON-WALDORF SCHOOL INC | $8,758,095 | $7,710,029 |
| NATIONAL ASSOCIATION OF SCHOOL PSYCHOLOGISTS | $8,757,576 | $7,378,257 |
| MAKE-A-WISH FOUNDATION OF THE MID-ATLANTIC INC | $6,519,250 | $7,347,231 |
| AMERICAN MEDICAL INFORMATICS ASSOCIATION | $7,293,096 | $6,778,628 |
| ROUND HOUSE THEATRE INC | $5,518,090 | $6,740,483 |
| BURNING TREE CLUB INC | $6,302,124 | $6,443,733 |
| CORNERSTONE INC | $26,907 | $5,915,010 |