| United States Department of Health and Human Services |
52,285 |
| Government of Ontario, Canada |
33,738 |
| University of Iowa |
32,409 |
| United States Department of Agriculture |
31,356 |
| University of Michigan |
30,949 |
| The University of Georgia |
26,744 |
| University of Wisconsin-Madison |
20,993 |
| Florida State University |
20,923 |
| State of Minnesota |
20,220 |
| State of Connecticut |
19,808 |
| University of Minnesota |
19,712 |
| Government of Alberta |
18,368 |
| PricewaterhouseCoopers, LLP |
18,226 |
| University of Rochester |
17,518 |
| National Institutes of Health |
17,303 |
| Abbott Laboratories |
15,822 |
| New York University |
14,383 |
| Keller Williams |
14,224 |
| CB Richard Ellis Group, Inc. |
13,110 |
| Arizona State University |
12,939 |
| State of Utah |
12,601 |
| RMIT University |
12,558 |
| Public Works and Government Services Canada (PWGSC) |
12,433 |
| United States Department of Energy |
12,330 |
| Baylor College of Medicine |
12,256 |
| Indian Health Service |
12,139 |
| United States Air Force |
11,571 |
| Royal LePage Real Estate Services |
11,512 |
| Food & Drug Administration |
11,011 |
| Pennsylvania State University |
10,003 |
| City College of NY |
9,691 |
| National University of Singapore |
9,619 |
| United States Navy |
8,937 |
| Duke University |
8,610 |
| University of British Columbia |
8,183 |
| State of California- Public Utilities Commission |
8,151 |
| University of Texas Health Science Center at San Antonio |
7,554 |
| UBS Financial Services Inc. |
7,187 |
| State of New Hampshire |
7,052 |
| Weichert Realtors |
6,893 |
| Veterans Health Administration |
6,519 |
| Fairfax County Public Schools |
6,452 |
| Century 21 |
6,259 |
| Community College of Baltimore County |
6,138 |
| Michigan State University |
6,114 |
| University of Wollongong |
6,077 |
| United States Army |
5,994 |
| San Jose State University |
5,983 |
| Hilton Worldwide |
5,935 |
| University of South Australia |
5,875 |
| UC Riverside |
5,874 |
| GlaxoSmithKline plc. |
5,867 |
| University of Colorado System |
5,627 |
| ERA Vacation Properties |
5,547 |
| SunGard Data Systems Inc. |
5,526 |
| McGill University Health Center |
5,469 |
| University of Otago |
5,388 |
| SAP America, Inc. |
5,344 |
| State Government of Alaska |
5,260 |
| Kent State University |
5,237 |
| Centers for Disease Control and Prevention |
5,059 |
| Marriott International, Inc. |
4,920 |
| Long & Foster Real Estate, Inc. |
4,906 |
| State University of New York, University at Buffalo |
4,802 |
| HCA Inc. |
4,795 |
| Government of Canada - Canadian Food Inspection Agency |
4,736 |
| American International Group (AIG) |
4,699 |
| State of Texas (USA) |
4,683 |
| University of Victoria |
4,676 |
| Service Canada |
4,659 |
| Novartis Corporation |
4,640 |
| University of Central Florida |
4,526 |
| Prudential Financial, Inc. |
4,368 |
| Humber College |
4,363 |
| Prince William Sound Community College |
4,354 |
| Trinity College Dublin |
4,308 |
| University of Hawaii |
4,266 |
| Bristol-Myers Squibb Company |
4,195 |
| Case Western Reserve University |
4,184 |
| University of North Carolina |
4,158 |
| Windermere Services Company |
4,119 |
| University of Chicago Hospitals |
4,108 |
| California Polytechnic State University, San Luis Obispo |
4,106 |
| Colliers International Property Consultants, Inc. |
4,055 |
| 3M Company |
4,026 |
| Subway |
3,992 |
| Princeton University |
3,990 |
| AstraZeneca PLC |
3,987 |
| Boston Scientific Corporation |
3,976 |
| Xerox Corporation |
3,938 |
| The University of Western Australia |
3,831 |
| Federal Government Of United Kingdom |
3,786 |
| University of Puget Sound |
3,767 |
| Deakin University |
3,718 |
| American Express Company |
3,674 |
| California Institute of Technology |
3,658 |
| Delaware Technical & Community College Central Office |
3,635 |
| University of Glasgow |
3,631 |
| Memorial Health Services |
3,622 |
| BP British Petroleum |
3,585 |
| Georgia Southern University |
3,561 |
| DePaul University |
3,539 |
| University of Cape Town |
3,422 |
| Eli Lilly and Company |
3,309 |
| University of Nevada, Las Vegas |
3,292 |
| Tenet Healthcare Corporation |
3,264 |
| Primerica |
3,244 |
| St Petersburg College |
3,238 |
| Indiana University-Purdue University at Fort Wayne |
3,219 |
| Suffolk County Community College |
3,189 |
| Roche Holding Ltd |
3,179 |
| CBS Broadcasting Inc. |
3,133 |
| University of Connecticut Health Center |
3,122 |
| University of Arkansas |
3,120 |
| Farmers Insurance Group, Inc. |
3,105 |
| State of Michigan |
3,104 |
| Barclays Capital Inc. |
3,075 |
| Unversity Of Bristol FRPERC |
3,047 |
| University of Texas Arlington |
2,998 |
| The College of William & Mary |
2,986 |
| Genzyme Corporation |
2,972 |
| Massachusetts Institute of Technology |
2,944 |
| Alcatel-Lucent Technologies Inc. |
2,895 |
| British Telecom Group Plc |
2,881 |
| McKesson Corporation |
2,864 |
| Western Michigan University |
2,808 |
| Procter & Gamble Company |
2,792 |
| EMCOR Group, Inc. |
2,751 |
| Commonwealth of Massachusetts |
2,655 |
| Baxter International Inc. |
2,614 |
| University Of Canberra |
2,610 |
| United States Department of the Treasury |
2,598 |
| Northumbria University |
2,593 |
| CA INC |
2,565 |
| Bonneville Power Administration |
2,536 |
| Brown University |
2,517 |
| Starwood Hotels and Resorts Worldwide, Inc. |
2,490 |
| The McGraw-Hill Companies, Inc. |
2,469 |
| Tarrant County Junior College |
2,442 |
| Industry Canada |
2,417 |
| Lansing Community College |
2,383 |
| Gannett Co., Inc. |
2,364 |
| NetApp Inc |
2,336 |
| Board Education Prince George County |
2,289 |
| International Paper |
2,287 |
| Tribune Company |
2,283 |
| Hofstra University |
2,274 |
| K&L Gates |
2,273 |
| Canadian Heritage |
2,254 |
| Ivy Tech Community College |
2,250 |
| WellPoint Inc |
2,247 |
| University of Salford |
2,216 |
| UnitedHealth Group Incorporated |
2,174 |
| Realty Executives International |
2,139 |
| TIAA-CREF |
2,131 |
| General Mills, Inc. |
2,127 |
| University of Colorado Hospital |
2,117 |
| LPL Financial |
2,116 |
| York University |
2,114 |
| Colorado State University |
2,107 |
| University of Denver |
2,102 |
| Cushman |
2,071 |
| Commonwealth of Pennsylvania |
2,062 |
| ConocoPhillips Company |
2,052 |
| California State Polytechnic University, Pomona |
2,043 |
| Pasadena City College |
2,041 |
| University & Community College System of Nevada |
1,969 |
| BD (Becton, Dickinson and Company) |
1,945 |
| City of Los Angeles |
1,924 |
| Tyson Foods, Inc. |
1,897 |
| California State University, Los Angeles |
1,896 |
| Turner Broadcasting System - Time Warner |
1,881 |
| The Hearst Corporation |
1,880 |
| Biogen Idec Inc. |
1,866 |
| H&R Block |
1,840 |
| Jones Lang LaSalle Incorporated |
1,827 |
| Algonquin College |
1,827 |
| The Hartford Financial Services Group, Inc. |
1,812 |
| Curtin University of Technology |
1,810 |
| Dow Chemical Company |
1,808 |
| State of Maine |
1,803 |
| Florida Gulf Coast University |
1,801 |
| American Cancer Society, Inc. |
1,793 |
| Aetna Inc. |
1,786 |
| Brigham Young University of Hawaii |
1,776 |
| CVS / Caremark Corporation |
1,766 |
| The City of Oakland California |
1,761 |
| American Family Insurance Group |
1,752 |
| Time Inc. |
1,749 |
| University of Rhode Island |
1,742 |
| Kirkland & Ellis LLP |
1,739 |
| Hudson Valley Community College |
1,717 |
| Collin County Community College District |
1,714 |
| US Small Business Administration |
1,710 |
| NE Moves |
1,706 |
| North Carolina Central University |
1,688 |
| City of Lincoln Nebraska |
1,686 |
| The Coca-Cola Company |
1,684 |
| Lee County School District |
1,677 |
| Putnam Investments |
1,657 |
