• ​Accreditation Association for Ambulatory Health Care Inc. at Skokie, IL 60077 (since 1993)

• Adebayo & Associates Inc., in Chicago, IL 60649 (since 1997)

• Ambulatory Health Care Services LTD at Skokie, IL 60077

• American Science & Technology in Chicago, IL 60622 (since 2002)

• Audits and Systems at Northfield, IL 60093 (since 1997)

• Care Communications Inc. in Chicago, IL 60606

• Catholic Office of the Deaf Archdioces of Chicago in Chicago, IL 60634

• Central Baptist Village at Norridge, IL 60706 (since 2003)

• Chicago Post Office Employees Credit Union in Chicago, IL 60643 (since 2013)

• Chicago Public Schools, Office of Technology Service in Chicago, IL 60603

• Chicago State University, Office of Web Development in Chicago, IL 60628

• Data Based Ads Inc. in Chicago, IL 60657

• Easter Seals Metropolitan Chicago in Chicago, IL 60608 (since 2000)

• Health Care Service Corporation in Chicago, IL 60601

• Jefferson Wells Inc. in Chicago, IL 60661 (since 1994)

• Jameson Realty Group in Chicago, IL 60610

• Illinois Maternal and Children Health Coalition in Chicago, IL 60602

• Latin United Community Housing Assoication in Chicago, IL 60647 (since 1998)

• Liberman Manage Service Inc. in Chicago, IL 60606 (since 1996)

• Logan Square Neighbor Association in Chicago, IL 60618 (since 2008)

• LWG Consulting Inc. at Northbrook, IL 60062 (since 2005)

• Midwest Moving & Storage Inc. at Elk Grove Village, IL 60007

• Power Distributing LLC at Elmhurst, IL 60126 (since 2001)

• Robert Half Financial Service Group in Chicago, IL 60601

• Rush University Medical Center, Information Service in Chicago, IL 60612

• Service Employee International Union Local 880, CTW CLC in Chicago, IL 60606

• Teen Living Program Inc. in Chicago, IL 60653

• The Esquire Staffing Group LTD in Chicago, IL 60606

• The Evangelical Covenant Church in Chicago, IL 60631 (since 2014)

• The Greater Chicago Food Depository in Chicago, IL 60632

• The Salvation Army USA Central Territory at Des Plaines, IL 60016