| Abbott Laboratories |
ABT Electronics |
AIT Laboratories |
| AIT Worldwide Logistics |
Alberto-Culver Co. |
Allstate Insurance |
| Ambius |
American Academy of Pediatrics |
American Agricultural Insurance Company |
| Amerisure Mutual Insurance Company |
Ardor Consulting |
Assurant Health |
| Avval |
Badger Meter, Inc. |
Ball Horticultural Company |
| Barrington Insurance Group |
Batavia Public Schools |
Baxter Credit Union |
| Baxter Healthcare Corporation |
Baxter International, Inc. |
BDPA - Chicago Chapter |
| Briggs Medical Service Corporation |
Brunswick Corp. |
Cardean Learning Group |
| Career Education Corporation |
Chicago Energy Consortium |
Chicago Public Schools |
| Chicago Tube & Iron Co. |
City Colleges of Chicago |
City of Aurora |
| City of Batavia |
City of Chicago |
City of Geneva |
| City of Mattoon |
City of Naperville |
City of Park Ridge |
| City of Wheaton |
City of Woodstock |
CNA Insurance |
| CNA Surety Corporation |
College of DuPage |
Columbia College Chicago |
| Communications Supply Corporation |
Covenant Retirement Communities |
Coventry Health Care |
| CVS Caremark |
Delnor Community Hospital |
DePaul University |
| Direct Supply, Inc. |
Discover Financial Services |
Equity Residential |
| Euclid Beverage |
Fidelitone Logistics |
Fiserv, Inc. |
| Follett Corporation |
Fulcrum-Meade, Inc. |
Geneva Community Unit School District 304 |
| GMIS Illinois |
Gottlieb Memorial Hospital |
Grosvenor Capital Management, L.P. |
| Harper College |
HSBC |
Hubbard Decision Research |
| i.c.stars |
IDEX Corp. |
Illinois Tool Works |
| IT Executive Exchange (ITEEx) |
Joliet Junior College |
Kane County |
| Kane County Circuit Clerk's Office |
Kane County GIS Technologies Dept. |
Kraft Foods |
| Kubota Engine of America |
Lake County Forest Preserves |
Lewis University |
| Life Fitness |
Littelfuse |
Luna |
| Manhard Consulting LTD |
Mayer Brown |
MedPoint Communications, Inc. |
| Metro Pier & Expo Authority |
Metropolitan Bank Group |
Moraine Valley Community College |
| Motorola |
Nalco Company |
National Equipment Services, Inc. |
| Navistar International Corporation |
nGenera |
Nippon Express USA, Inc. |
| Northwestern University |
OPM Mentors |
Penske Corporation |
| PMI - Chicago Chapter |
QBE Regional Insurance |
Q Interactive |
| REJIS Commission |
Revcor Revolutionary Air Flow |
Ross Law Offices |
| Rotary International |
Rowe Management Consulting |
Rush University Medical Center |
| Rust-Oleum Corp. |
Sears Holding Corp. |
SIM Chicago Chapter |
| Sloan Valve Company |
Sonnenschein, Nath & Rosenthal |
Sourcelink Solutions, LLC |
| State of Illinois, Dept. of Human Services |
Technology Executive Network (TEN) |
Tenneco Automotive, Inc. |
| Terra Industries, Inc. |
The Joint Commission |
The Quaker Oats Co. |
| Triton College |
True Value |
UChicagoTech |
| United Airlines |
US General Services Administration |
United Stationers |
| University of Illinois at Chicago |
Village of Downers Grove |
Village of Elburn |
| Village of Elk Grove |
Village of Hinsdale |
Village of Hoffman Estates |
| Village of Mount Prospect |
Village of Mundelein |
Village of Palatine |
| Village of Pleasant Prairie |
Village of Schaumburg |
Village of Streamwood |
| Village of Western Springs |
Village of Westmont |
Walgreens |
| We Energies |
WMS Gaming |
Wm. Wrigley Jr. Company |
| YMCA of the USA |