| United States Department of Health and Human Services |
52,214 |
| United States Department of Agriculture |
48,769 |
| Government of Ontario, Canada |
33,754 |
| University of Iowa |
32,173 |
| The University of Georgia |
26,430 |
| Florida State University |
21,709 |
| University of Wisconsin-Madison |
20,680 |
| State of Minnesota |
20,244 |
| State of Connecticut |
19,850 |
| Government of Alberta |
18,373 |
| PricewaterhouseCoopers, LLP |
17,384 |
| University of Rochester |
17,309 |
| National Institutes of Health |
17,303 |
| Abbott Laboratories |
15,904 |
| New York University |
14,303 |
| Keller Williams |
14,098 |
| Arizona State University |
12,797 |
| State of Utah |
12,597 |
| RMIT University |
12,453 |
| Public Works and Government Services Canada (PWGSC) |
12,438 |
| CB Richard Ellis Group, Inc. |
12,392 |
| United States Department of Energy |
12,322 |
| Baylor College of Medicine |
12,192 |
| Indian Health Service |
12,117 |
| United States Air Force |
11,968 |
| Provincial Government of British Columbia |
11,515 |
| Royal LePage Real Estate Services |
11,486 |
| Food & Drug Administration |
11,073 |
| Pennsylvania State University |
9,921 |
| United States National Forest Service |
9,801 |
| City College of NY |
9,649 |
| National University of Singapore |
9,578 |
| United States Navy |
9,240 |
| State of California- Public Utilities Commission |
8,639 |
| Duke University |
8,362 |
| University of British Columbia |
8,198 |
| University Of Nottingham |
8,094 |
| North East ISD |
7,653 |
| University of Texas Health Science Center at San Antonio |
7,551 |
| Veterans Health Administration |
7,000 |
| Weichert Realtors |
6,922 |
| State of New Hampshire |
6,864 |
| Canadian Imperial Bank of Commerce |
6,632 |
| Natural Resources Canada |
6,572 |
| Fairfax County Public Schools |
6,494 |
| United States Department of Veterans Affairs |
6,471 |
| United States Army |
6,179 |
| Wells Fargo Advisors, LLC |
6,102 |
| Community College of Baltimore County |
6,097 |
| Hilton Worldwide |
6,085 |
| San Jose State University |
5,972 |
| GlaxoSmithKline plc. |
5,965 |
| University of California, Los Angeles |
5,923 |
| University of South Australia |
5,878 |
| UC Riverside |
5,877 |
| University of Wollongong |
5,723 |
| University of Colorado System |
5,690 |
| University of Illinois at Chicago |
5,668 |
| SunGard Data Systems Inc. |
5,606 |
| State Government of Alaska |
5,424 |
| McGill University Health Center |
5,380 |
| ERA Vacation Properties |
5,354 |
| SAP America, Inc. |
5,351 |
| Kent State University |
5,220 |
| University of Otago |
5,116 |
| Centers for Disease Control and Prevention |
5,065 |
| Marriott International, Inc. |
5,036 |
| Century 21 |
4,997 |
| State of Texas (USA) |
4,959 |
| Long & Foster Real Estate, Inc. |
4,846 |
| American International Group (AIG) |
4,798 |
| Novartis Corporation |
4,788 |
| Government of Canada - Canadian Food Inspection Agency |
4,735 |
| State University of New York, University at Buffalo |
4,732 |
| University of Victoria |
4,668 |
| Service Canada |
4,667 |
| University of Central Florida |
4,517 |
| US General Services Administration (GSA) |
4,501 |
| Indiana State Government |
4,481 |
| Prudential Financial, Inc. |
4,407 |
| Prince William Sound Community College |
4,354 |
| Humber College |
4,344 |
| Bristol-Myers Squibb Company |
4,282 |
| University of Hawaii |
4,275 |
| Case Western Reserve University |
4,153 |
| University of North Carolina |
4,125 |
| California Polytechnic State University, San Luis Obispo |
4,095 |
| Windermere Services Company |
4,094 |
| United States Environmental Protection Agency |
4,087 |
| City of Madison Metro School District |
4,068 |
| Columbia University |
4,064 |
| Xerox Corporation |
4,059 |
| 3M Company |
4,053 |
| Boston Scientific Corporation |
4,053 |
| Colliers International Property Consultants, Inc. |
4,006 |
| Subway |
3,999 |
| Princeton University |
3,996 |
| University College London |
3,944 |
| American Express Company |
3,914 |
| University of Chicago Hospitals |
3,777 |
| University of Puget Sound |
3,767 |
| Memorial Health Services |
3,726 |
| California Institute of Technology |
3,687 |
| Deakin University |
3,671 |
| Delaware Technical & Community College Central Office |
3,630 |
| Broadcom Corporation |
3,599 |
| AstraZeneca PLC |
3,591 |
| Georgia Southern University |
3,555 |
| Federal Government Of United Kingdom |
3,552 |
| University of Glasgow |
3,546 |
| Montgomery County Public Schools |
3,532 |
| BP British Petroleum |
3,503 |
| New York Life Insurance Company |
3,469 |
| Johnson County Community College |
3,463 |
| Eli Lilly and Company |
3,385 |
| DePaul University |
3,287 |
| Primerica |
3,277 |
| Tenet Healthcare Corporation |
3,269 |
| Farmers Insurance Group, Inc. |
3,269 |
| State of Michigan |
3,228 |
| St Petersburg College |
3,205 |
| Suffolk County Community College |
3,187 |
| Indiana University-Purdue University at Fort Wayne |
3,186 |
| Roche Holding Ltd |
3,177 |
| CBS Corporation |
3,153 |
| Alcatel-Lucent Technologies Inc. |
3,151 |
| University of Nevada, Las Vegas |
3,121 |
| University of Arkansas |
3,115 |
| University of Connecticut Health Center |
3,078 |
| University of Texas Arlington |
3,037 |
| City of Richmond - Virginia |
3,021 |
| The College of William & Mary |
2,982 |
| Barclays Capital Inc. |
2,979 |
| McKesson Corporation |
2,954 |
| Genzyme Corporation |
2,939 |
| Commonwealth of Massachusetts |
2,889 |
| University of Cape Town |
2,849 |
| The University of North Carolina at Charlotte |
2,797 |
| EMCOR Group, Inc. |
2,739 |
| Trinity College Dublin |
2,655 |
| Baxter International Inc. |
2,651 |
| United States Department of the Treasury |
2,614 |
| University Of Canberra |
2,606 |
| Starwood Hotels and Resorts Worldwide, Inc. |
2,562 |
| CA INC |
2,562 |
| Northumbria University |
2,549 |
| Bonneville Power Administration |
2,533 |
| Brown University |
2,517 |
| Unversity Of Bristol FRPERC |
2,501 |
| University of Virginia |
2,485 |
| Takeda Pharmaceuticals North America, Inc. |
2,478 |
| The McGraw-Hill Companies, Inc. |
2,463 |
| Tarrant County Junior College |
2,426 |
| Industry Canada |
2,425 |
| Enterprise Rent-A-Car Company |
2,407 |
| International Paper |
2,403 |
| NetApp Inc |
2,399 |
| Lansing Community College |
2,379 |
| The University of Western Australia |
2,362 |
| St. John's University |
2,358 |
| Fifth Third Bank |
2,329 |
| Gannett Co., Inc. |
2,320 |
| University of Missouri |
2,320 |
| Board Education Prince George County |
2,315 |
| General Mills, Inc. |
2,303 |
| British Telecom Group Plc |
2,294 |
| Kinetic Concepts, Inc. |
2,272 |
| Hofstra University |
2,263 |
| Canadian Heritage |
2,257 |
| K&L Gates |
2,241 |
| Jones Lang LaSalle Incorporated |
2,209 |
| University of Salford |
2,201 |
| UnitedHealth Group Incorporated |
2,198 |
| United Parcel Service of America, Inc. |
2,191 |
| University of California Berkeley |
2,186 |
| Commonwealth of Pennsylvania |
2,183 |
| City of Los Angeles |
2,178 |
| Bell Canada - Enterprise Group |
2,177 |
| ConocoPhillips Company |
2,155 |
| TIAA-CREF |
2,146 |
| Ivy Tech Community College |
2,145 |
| Prudential Realty |
2,113 |
| University of Colorado Hospital |
2,109 |
| LPL Financial |
2,109 |
| H&R Block |
2,106 |
| Colorado State University |
2,096 |
| University of Denver |
2,080 |
| CVS / Caremark Corporation |
2,057 |
| DLA Piper |
2,049 |
| University & Community College System of Nevada |
2,037 |
| Pasadena City College |
2,035 |
| California State Polytechnic University, Pomona |
2,033 |
| Tyson Foods, Inc. |
2,012 |
| BD (Becton, Dickinson and Company) |
1,955 |
| Koenig & Strey GMAC Realtors |
1,942 |
| Yale University |
1,896 |
| California State University, Los Angeles |
1,883 |
| DuPont |
1,883 |
| Biogen Idec Inc. |
1,873 |
| American Cancer Society, Inc. |
1,860 |
