| PLASTICS INDUSTRY ASSOCIATION INC | $16,674,908 | $25,056,781 |
| COTTON COUNCIL INTERNATIONAL | $25,958,092 | $24,978,049 |
| DISTRICT OF COLUMBIA INTERNATIONAL SCHOOL | $28,362,438 | $24,977,289 |
| EVIDENCE ACTION | $33,810,832 | $24,895,500 |
| WOODROW WILSON INTERNATIONAL CENTER FOR SCHOLARS | $28,873,770 | $24,788,653 |
| AMERICAN PUBLIC TRANSPORTATION ASSOCIATION | $21,281,522 | $24,746,562 |
| AMERICAN WIND ENERGY ASSOCIATION | $25,353,627 | $24,722,518 |
| SAINT COLETTA OF GREATER WASHINGTON INC | $25,126,355 | $24,626,037 |
| NUCLEAR THREAT INITIATIVE INC | $41,778,299 | $24,559,368 |
| DRUG INFORMATION ASSOCIATION INC | $24,142,037 | $24,015,187 |
| COUNCIL OF CHIEF STATE SCHOOL OFFICERS | $25,365,455 | $23,998,403 |
| AMERICAN SOCIETY OF ASSOCIATION EXECUTIVES | $16,622,700 | $23,962,558 |
| CONSUMER HEALTHCARE PRODUCTS ASSOCIATION | $24,411,375 | $23,883,995 |
| WASHINGTON CENTER FOR INTERNSHIPS AND ACADEMIC SEMINARS | $22,746,378 | $23,835,759 |
| UNITED STATES LETTER CARRIERS MUTUAL BENEFIT ASSOCIATION | $24,886,108 | $23,739,425 |
| AMERICAN ASSOCIATION FOR CLINICAL CHEMISTRY | $24,396,538 | $23,737,759 |
| TRANSPORT WORKERS UNION OF AMERICA | $27,411,730 | $23,678,839 |
| LAB SCHOOL OF WASHINGTON | $22,465,449 | $23,564,929 |
| GENERATION YOU EMPLOYED INC | $26,139,408 | $23,230,827 |
| EQUAL JUSTICE WORKS | $20,215,820 | $23,188,421 |
| EAGLE ACADEMY PUBLIC CHARTER SCHOOL | $24,466,677 | $23,141,918 |
| KIND INC | $24,764,448 | $23,140,620 |
| CAPITAL CITY PUBLIC CHARTER SCHOOL INC | $25,228,647 | $22,699,427 |
| AMERICAN DENTAL EDUCATION ASSOCIATION | $24,207,652 | $22,564,996 |
| WOMEN FOR WOMEN INTERNATIONAL | $21,695,739 | $22,532,777 |