| M D ANDERSON PHYSICIANS NETWORK | $65,111,619 | $57,055,814 |
| EPISCOPAL HEALTH FOUNDATION | $44,391,436 | $55,441,324 |
| ST JOHNS SCHOOL | $58,605,665 | $53,960,514 |
| KINKAID SCHOOL INC | $54,575,357 | $53,078,108 |
| HOUSTON ZOO INC | $73,932,331 | $52,896,982 |
| TRANSPORT WORKERS MTA HEALTH AND WELF | $56,783,553 | $52,353,153 |
| BUCKINGHAM SENIOR LIVING COMM-TAX | $29,697,451 | $51,533,048 |
| BAYLOR MEDICAL FOUNDATION | $5,951,428 | $50,229,628 |
| EAGLES TRACE INC | $47,894,696 | $49,400,122 |
| FIRST SERVICE CREDIT UNION | $51,399,270 | $48,951,438 |
| CATHOLIC CHARITIES OF THE ARCHDIOCESE OF GALVESTON HOUSTON | $44,596,770 | $47,300,028 |
| AWTY INTERNATIONAL SCHOOL | $55,456,375 | $46,168,378 |
| ST HOPE FOUNDATION | $43,719,041 | $41,399,499 |
| NACE INTERNATIONAL | $41,107,934 | $40,943,151 |
| AGREEMENT OF TRUST FOR THE MARITIME ASSOC-ILA WELFARE AND VACATION | $37,349,295 | $40,218,203 |
| BRAZOS PRESBYTERIAN HOMES INC | $35,750,356 | $39,828,267 |
| METHODIST HOSPITAL FOUNDATION | $82,714,568 | $39,661,995 |
| SMART FINANCIAL CREDIT UNION | $43,400,030 | $39,560,547 |
| SOUTH TEXAS COLLEGE OF LAW HOUSTON INC | $40,035,066 | $38,544,793 |
| LLOYDS REGISTER NORTH AMERICA INC | $39,106,085 | $36,388,625 |
| HOUSTON MUSEUM OF NATURAL SCIENCE | $51,565,168 | $36,306,338 |
| LONE STAR LEGAL AID | $23,937,132 | $35,821,539 |
| CENTRAL MISSIONARY CLEARINGHOUSE INC | $35,918,752 | $35,792,367 |
| MEMORIAL HERMANN PHARMACY SERVICES LLC | $30,145,002 | $34,374,724 |
| HOUSTON SYMPHONY SOCIETY | $30,832,679 | $34,177,611 |