| AT&T |
52,567 |
| Crossmark |
42,485 |
| Texas A&M University |
13,116 |
| National Oilwell Varco Inc. |
12,699 |
| Dell Inc |
11,469 |
| City of Austin |
9,921 |
| CYPRESS-FAIRBANKS Independent School Dist |
9,393 |
| Baylor College of Medicine |
8,580 |
| City Of San Antonio |
7,159 |
| North East Independent School District |
6,741 |
| Cancer Care Centers of Southwest Texas |
5,561 |
| Shell Oil Company |
5,131 |
| University of North Texas |
5,085 |
| Houston Community College |
4,511 |
| The University of Texas at Austin |
4,349 |
| Ericsson Inc. |
4,246 |
| Texas State University-San Marcos |
4,189 |
| Affiliated Computer Services, Incorporated (ACS), a Xerox Company |
4,104 |
| El Paso Community College |
4,098 |
| Austin Community College District |
4,044 |
| Lone Star College System |
3,703 |
| Fort Bend ISD |
3,676 |
| MD Anderson Cancer Center |
3,579 |
| CHRISTUS Health |
3,459 |
| Tenet Healthcare Corporation |
3,435 |
| United Services Automobile Association |
3,333 |
| Boy Scouts of America |
3,292 |
| Waste Management, Inc. |
3,283 |
| University of Houston |
3,128 |
| SYSCO Corporation |
3,095 |
| Plano Independent School District |
3,064 |
| Southwest Airlines Corporation |
3,027 |
| Mary Kay Inc |
3,020 |
| BMC Software Inc. |
3,019 |
| GameStop Corp. |
3,018 |
| Clear Channel Communications/CC Media Holdings Inc |
2,993 |
| Baker Hughes Incorporated |
2,832 |
| Texas Higher Education Coordinating Board |
2,807 |
| Memorial Hermann Healthcare System |
2,782 |
| Weatherford International Ltd. |
2,778 |
| Exxon Mobil Corporation |
2,768 |
| BNSF Railway Company |
2,645 |
| KBR, Inc. |
2,596 |
| Halliburton Company |
2,573 |
| Schlumberger Limited |
2,562 |
| Texas Instruments Incorporated |
2,546 |
| Kinder Morgan, Inc. |
2,483 |
| Sabre Holdings Corporation |
2,476 |
| Invensys Operations Management |
2,473 |
| University of Texas Health Science Center |
2,471 |
| Dallas County Community College District |
2,457 |
| Lamar Consolidated Independent School District |
2,451 |
| RealPage, Inc. |
2,333 |
| Baylor Health Care System |
2,244 |
| University of Texas Arlington |
2,199 |
| Lewisville Independent School District |
2,188 |
| University of Texas Health Science Center at San Antonio |
2,142 |
| American Airlines |
2,022 |
| ConocoPhillips |
2,011 |
| Tesco Corporation |
1,981 |
| Chicago Bridge & Iron Company |
1,971 |
| Austin Independent School District |
1,966 |
| Texas Tech University |
1,959 |
| Kimberly-Clark Corporation |
1,903 |
| University of Texas Medical Branch Health |
1,847 |
| Fluor Corporation |
1,844 |
| Golden Living |
1,824 |
| American General Life Companies |
1,779 |
| Collin College |
1,774 |
| American Air Liquide Holdings, Inc. |
1,724 |
| South Texas College |
1,689 |
| 7-Eleven, Inc. |
1,681 |
| Coldwell Banker Residential Brokerage |
1,675 |
| Alliance Data Systems, Inc. |
1,649 |
| Rice University |
1,632 |
| Regus |
1,604 |
| CenterPoint Energy, Inc. |
1,593 |
| University of Texas Southwestern Medical Center |
1,581 |
| Baylor University |
1,503 |
| Southern Methodist University |
1,485 |
| City of Denton |
1,452 |
| Coldwell Banker United, Realtors |
1,430 |
| Texas Southern University |
1,424 |
| KCI (Kinetic Concepts, Inc.) |
1,410 |
| Total Petrochemicals USA, Inc. |
1,408 |
| RadioShack Corporation |
1,396 |
| Michaels Stores, Inc. |
1,394 |
| Prairie View A&M University |
1,386 |
| Stephen F. Austin State University |
1,374 |
| Abilene Independant School District |
1,370 |
| The University of Texas at Dallas |
1,367 |
| Freescale Semiconductor Inc |
1,363 |
| CompuCom Systems, Inc. |
1,351 |
| Texas Comptroller of Public Accounts |
1,336 |
| McKesson Specialty Health |
1,325 |
| The Methodist Hospital System |
1,324 |
| University of Texas at Tyler |
1,320 |
| Houston Independent School District |
1,300 |
| Baptist Health System - San Antonio, Texas |
1,298 |
| Texas Health Resources |
1,283 |
| Comerica Incorporated |
1,272 |
| Children's Medical Center of Dallas |
1,242 |
| University of Texas at San Antonio |
1,233 |
| East Texas Medical Center Regional Healthcare System |
1,231 |
| City of Houston, Texas |
1,223 |
| UniversalPegasus International |
1,221 |
| University of Texas - Pan American |
1,218 |
| Cameron International Corporation |
1,211 |
| State of Texas - Department of Transportation |
1,193 |
| Alamo Colleges |
1,185 |
| Scott & White healthcare |
1,178 |
| Insperity |
1,157 |
| Dallas Independent School District |
1,153 |
| H-E-B Grocery |
1,152 |
| Bell Helicopter Textron Inc. |
1,151 |
| SuperMedia, Inc. |
1,136 |
| Concentra Inc. |
1,135 |
| Valero Energy Corporation |
1,132 |
| American Heart Association |
1,129 |
| Wylie Independent School District |
1,127 |
| U.S. Army Medical Department |
1,121 |
| Energy Future Holdings |
1,109 |
| Dickinson Independent School District |
1,083 |
| Texas Tech University Health Sciences Center |
1,059 |
| St. David's HealthCare |
1,059 |
| Flowserve Corporation |
1,046 |
| Hitachi Consulting Corporation |
1,038 |
| Angelo State University |
1,030 |
| University of Houston - Clear Lake |
1,028 |
| Whole Foods Market, Inc. |
1,026 |
| Rackspace, Inc |
1,021 |
| Southwest Research Institute |
1,019 |
| Tarleton State University |
1,019 |
| Transwestern |
1,010 |
| University of Texas at El Paso |
1,002 |
| LyondellBasell |
999 |
| Texas Christian University |
997 |
| St. Luke's Episcopal Health System |
978 |
| UH-Downtown |
977 |
| FMC Technologies, Inc. |
968 |
| Stewart Information Services Corporation |
966 |
| Continental Airlines, Inc. |
959 |
| Anadarko Petroleum Corporation |
954 |
| AAFES / Army and Air Force Exchange Service |
923 |
| Vinson & Elkins L.L.P. |
920 |
| Frito-Lay North America |
918 |
| Kelsey-Seybold Clinic |
913 |
| NEC Corporation of America |
903 |
| Huawei Technologies Co., Ltd |
897 |
| College of Medicine |
893 |
| H.D. Vest, Incorporated |
890 |
| The University of Texas at Brownsville and Texas Southmost College |
884 |
| West Texas A&M University |
883 |
| Edgewood Independent School District |
883 |
| Freeman |
882 |
| Arlington Independent School District LTD |
879 |
| Harte-Hanks, Inc |
872 |
| Texas Farm Bureau Insurance Companies |
872 |
| National Instruments Corporation |
854 |
| Neiman Marcus |
850 |
| Cemex |
833 |
| Cooper Industries plc |
832 |
| City of Round Rock |
824 |
| Dr Pepper Snapple Group |
820 |
| Georgetown Independent School District |
817 |
| Cook Children's Health Care System |
812 |
| Baker Botts |
810 |
| Dean Foods Company |
808 |
| Richardson Independent School District |
803 |
| Trinity Industries, Inc. |
803 |
| The Texas A&M University System Health Science Center |
801 |
| Frost Bank |
784 |
| LQ Management LLC |
773 |
| AAA |
771 |
| Gold's Gym International, Inc. |
769 |
| St. Mary's University |
757 |
| Fort Bend County, Texas |
751 |
| St. Edward's University |
749 |
| Texas A&M University - Commerce |
746 |
| American National Insurance Company |
745 |
| Abilene Christian University |
724 |
| Vignette Corporation |
713 |
| Century 21 Judge Fite Company |
702 |
| Hines |
698 |
| Brazosport College |
697 |
| Accor |
690 |
| Calpine Corporation |
687 |
| University of Texas Health Center at Tyler |
682 |
| NCH Corporation |
681 |
| ChevronPhillips Chemical Company |
675 |
| Ebby Halliday Realtors |
674 |
| Southern Union Company |
672 |
| University of the Incarnate Word |
670 |
| Waxahachie Independent School District |
667 |
| Celanese Corporation |
664 |
| Laredo Community College |
662 |
| Elbit Systems |
659 |
| Blinn College |
657 |
| Frost & Sullivan, Inc. |
657 |
| Service Corporation International (SCI) |
652 |
