| NRECA INTERNATIONAL | $18,735,035 | $18,601,793 |
| AIR FORCE ASSOCIATION | $20,748,056 | $18,582,935 |
| GLOBAL ENVIRONMENT AND TECHNOLOGY FOUNDATION | $14,665,582 | $18,295,563 |
| TRAGEDY ASSISTANCE PROGRAM FOR SURVIVORS INC | $15,958,737 | $17,395,729 |
| NATIONAL ASSOCIATION FOR COLLEGE ADMISSION COUNSELING INC | $17,698,893 | $17,166,900 |
| ASSOCIATION FOR THE ADVANCEMENT OF MEDICAL INSTRUMENTATION INC | $15,844,533 | $17,109,298 |
| INSTITUTE FOR HUMANE STUDIES | $21,122,878 | $17,003,146 |
| BAE SYSTEMS FUNDED RETIREE BENEFIT TRUST | $15,928,230 | $16,956,124 |
| US WHEAT ASSOCIATES INC | $17,185,434 | $16,844,025 |
| NATIONAL TELECOMMUNICATIONS COOPERATIVE ASSOCIATION | $16,058,531 | $16,116,400 |
| AMERICANS FOR PROSPERITY FOUNDATION | $19,116,648 | $16,069,008 |
| WASHINGTON GOLF AND COUNTRY CLUB INC | $15,535,695 | $15,931,983 |
| QUEENS COURT DEVELOPMENT CORP | $15,058,651 | $15,830,964 |
| NATIONAL ASSOCIATION OF FEDERAL CREDIT UNIONS INC | $16,494,713 | $15,718,873 |
| AMERICAN INSTITUTE FOR CANCER RESEARCH | $18,217,510 | $15,261,561 |
| STATE POLICY NETWORK | $16,950,337 | $14,929,952 |
| CHARLES KOCH INSTITUTE | $20,830,118 | $14,868,783 |
| ARLINGTON COMMUNITY FOUNDATION | $6,223,368 | $13,103,413 |
| WORLDWIDE ERC INC | $9,987,802 | $13,083,922 |
| BLUMONT INTERNATIONAL INC | $11,513,751 | $13,026,144 |
| CASUALTY ACTUARIAL SOCIETY | $12,259,939 | $12,990,571 |
| PHOENIX HOUSES OF THE MID-ATLANTIC INC | $12,301,732 | $12,889,490 |
| ATLAS ECONOMIC RESEARCH FOUNDATION | $15,258,191 | $12,696,102 |
| SCHOOL NUTRITION ASSOCIATION INC | $12,602,103 | $12,475,200 |
| AMERICAN FOUNDATION FOR THE BLIND INC | $9,027,415 | $12,450,010 |