| NUCLEAR ENERGY INSTITUTE INC | $49,863,878 | $51,033,901 |
| FREEDOM HOUSE | $50,524,461 | $49,705,231 |
| GEORGETOWN DAY SCHOOL | $57,816,633 | $49,622,700 |
| CENTER FOR AMERICAN PROGRESS | $47,739,933 | $49,435,417 |
| JUDICIAL WATCH INC | $91,200,569 | $49,144,797 |
| PEW RESEARCH CENTER | $46,348,690 | $48,812,746 |
| SEIU HEALTH AND WELFARE FUND | $48,809,265 | $48,727,188 |
| TRINITY COLLEGE | $50,706,155 | $48,656,717 |
| AMERICAN GEOPHYSICAL UNION | $44,741,614 | $48,574,846 |
| PACT GLOBAL MICROFINANCE FUND | $71,980,377 | $48,165,286 |
| INTERNATIONAL BROTHERHOOD OF TEAMSTERS VOLUNTARY EMPLOYEE BENEFITS TRUST | $49,297,669 | $48,124,056 |
| BUSINESS ROUNDTABLE INC | $46,863,044 | $47,784,004 |
| GREEN BUSINESS CERTIFICATION INC | $43,784,688 | $47,724,616 |
| ZERO TO THREE - NATIONAL CENTER FOR INFANTS TODDLERS AND FAMILIES TODDLERS AND FAMILIES | $42,313,719 | $47,657,711 |
| HILLEL THE FOUNDATION FOR JEWISH CAMPUS LIFE | $44,989,171 | $47,566,473 |
| AMERICAN POSTAL WORKERS UNION AFL-CIO | $62,258,549 | $47,277,864 |
| AMERICAN COUNCIL OF LIFE INSURERS INC | $46,402,113 | $47,116,714 |
| RELIEF INTERNATIONAL INC | $44,705,166 | $46,517,596 |
| FOUNDATION FOR FOOD AND AGRICULTURE RESEARCH | $50,745,562 | $46,509,339 |
| OPTICAL SOCIETY OF AMERICA INC | $49,549,907 | $46,149,242 |
| CENTER FOR STRATEGIC AND INTERNATIONAL STUDIES | $45,529,366 | $45,447,331 |
| WHITMAN-WALKER CLINIC INC | $46,706,717 | $44,969,316 |
| BRICKLAYERS AND ALLIED CRAFTWORKERS INTERNATIONAL HEALTH FUND | $45,254,713 | $44,856,133 |
| MEDSTAR HEALTH RESEARCH INSTITUTE | $39,716,879 | $44,791,996 |
| FINRA DISPUTE RESOLUTION INC | $41,918,620 | $44,204,836 |