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• A. FINKL & SONS CO
• AARETE
• ABELSONTAYLOR
• ABF FREIGHT SYSTEM, INC
• ABN AMRO CLEARING CHICAGO LLC
• ACADEMY OF NUTRITION AND DIETETICS
• ACCENTURE
• ACCRETIVE HEALTH
• ACCUEN
• ACE USA
• ACQUITY
• ADAGE TECHNOLOGIES
• ADAMS STREET PARTNERS
• ADVISORY RESEARCH
• AECOM
• AETNA
• AFFILIATED ENGINEERS, INC.
• AHEAD
• AIG
• AKUNA CAPITAL LLC
• AKZONOBEL
• ALAS, INC.
• ALFRED BENESCH & COMPANY
• ALLIANZ GLOBAL RISKS US INSURANCE COMPANY
• ALLSCRIPTS
• ALLSTATE INSURANCE
• ALLSTON TRADING
• ALPHAMETRIX GROUP, LLC
• ALTAIR ADVISERS LLC
• ALVAREZ & MARSAL
• AMERICAN AIRLINES
• AMERICAN CHARTERED BANK
• AMERICAN COLLEGE OF SURGEONS
• AMERICAN DENTAL ASSOCIATION
• AMERICAN DIGITAL CORPORATION
• AMERICAN EXPRESS
• AMERICAN HOSPITAL ASSOCIATION
• AMERICAN INSTITUTES FOR RESEARCH
• AMERICAN MEDICAL ASSOCIATION
• AMERICAN RED CROSS
• AMERISOURCEBERGEN TECHNOLOGY GROUP
• AMLI RESIDENTIAL
• AMSTED INDUSTRIES
• ANALYSIS GROUP
• ANALYTICS8
• ANDERSON PEST SOLUTIONS
• ANIXTER INC
• AOL
• AON
• APICS
• ARCADIS
• ARES MANAGEMENT LLC
• ARRIS
• ARTHUR J. GALLAGHER
• ARUP
• ASGG + PEP
• ASSOCIATED BANK
• AT&T
• ATHLETICO PHYSICAL THERAPY
• ATLANTIC POWER CORP.
• AVANADE
• AVEPOINT
• AVISON YOUNG
• BACKSTOP SOLUTIONS GROUP, LLC
• BALASA DINVERNO FOLTZ LLC
• BALYASNY ASSET MANAGEMENT
• BANK LEUMI USA
• BANK OF AMERICA MERRILL LYNCH
• BANKERS LIFE AND CASUALTY COMPANY
• BANNER APARTMENTS
• BARACK FERRAZZANO KIRSCHBAUM & NAGELBERG LLP
• BARRY CALLEBAUT
• BATES CAREY NICOLAIDES LLP
• BAXTER HEALTHCARE
• BCD TRAVEL
• BDO USA
• BEHRINGER HARVARD
• BELVEDERE TRADING
• BERLIN PACKAGING
• BIGMACHINES INC.
• BLACKROCK
• BLUE CROSS BLUE SHIELD ASSOCIATION
• BLUE CROSS BLUE SHIELD OF ILLINOIS
• BLUE HEALTH INTELLIGENCE
• BLUE PLATE CATERING
• BLUE VISTA CAPITAL MANAGEMENT
• BMO
• BNY MELLON
• BOMBARDIER
• BOSTON CONSULTING GROUP
• BP
• BRAINTREE
• BRAND.NET, A VALASSIS DIGITAL COMPANY
• BRANDMUSCLE
• BRIDGENET SOLUTIONS
• BROOKSOURCE
• BROOKWEINER LLC
• BROWN BROTHERS HARRIMAN
• BUCKINGHAM ATHLETIC CLUB
• BURWOOD GROUP
• C.H. ROBINSON: TMC
• C.H. ROBINSON: CHICAGO CENTRAL
• CA TECHNOLOGIES
• CALL ONE
• CAMPUS ACQUISITIONS
• CAPCO
• CAREERBUILDER
• CARNOW, CONIBEAR & ASSOC., LTD.
• CATAMARAN
• CATERPILLAR INC.
• CBOE
• CCC INFORMATION SERVICES INC.
• CDW
• CEB
• CELSIS
• CENTER FOR NEIGHBORHOOD TECHNOLOGY
• CENTERPOINT PROPERTIES
• CENTRIC CONSULTING
• CENTRO
• CH ROBINSON- CHICAGO SOUTH
• CH2M HILL
• CHANNEL IQ
• CHAPMAN AND CUTLER LLP
• CHICAGO BEARS
• CHICAGO HOUSING AUTHORITY
• CHICAGO SPEECH THERAPY
• CHICAGO TITLE INSURANCE COMPANY, CHICAGO COMMERCIAL CENTER
• CHICAGO TRADING COMPANY, LLC
• CHOPPER TRADING
• CHROBINSON IMDL
• CIH
• CINTAS
• CISCO SYSTEMS, INC.
• CISION
• CITADEL
• CITYTECH, INC
• CLARITY CONSULTING INC.
• CLASSIFIED VENTURES, LLC
• CLUNE CONSTRUTION COMPANY
• CME GROUP INC.
• CNA
• CNH
• COGNITIVE CAPITAL, LLC
• COLLEGE OF AMERICAN PATHOLOGISTS
• COMMONGROUND
• COMPASS LEXECON
• COMPTIA
• CONCENTRA
• CONSOLIDATED TRADING LLC
• CORBETT DUNCAN & HUBLY PC
• CORNELL FORGE COMPANY
• CORPORATE IMAGING CONCEPTS, INC
• CORTLAND & MINDSPRING PARTNERS
• COTTER CONSULTING, INC.
• COUNTERPATH
• COYOTE LOGISTICS
• CRAIN'S CHICAGO BUSINESS
• CRATE&BARREL
• CREATEPOSSIBLE
• CROWN IMPORTS LLC
• CUSHMAN & WAKEFIELD
• CUSTOM HOUSE FUND SERVICES
• CUSTOMER ASSET CONSULTING GROUP
• DART CONTAINER CORPORATION
• DEPAUL UNIVERSITY
• DEUTSCHE BANK / DEUTSCHE ASSET & WEALTH MANAGEMENT
• DEUTSCHE BOERSE GROUP
• DIGITAS
• DIGNITAS
• DIMEO SCHNEIDER & ASSOCIATES, L.L.C.
• DISCOVER FINANCIAL SERVICES
• DISCOVERY COMMUNICATIONS
• DISYS
• DONLEN CORPORATION
• DOVER CORPORATION
• DOW JONES
• DRAFTFCB
• DRAPER AND KRAMER
• DRI
• DRW TRADING GROUP
• DTZ - A UGL COMPANY
• DUFF AND PHELPS LLC
• DYKEMA GOSSETT PLLC
• DYSON
• E.ON CLIMATE & RENEWABLES
• EAST BANK CLUB
• ECHO GLOBAL LOGISTICS
• ECKENHOFF SAUNDERS ARCHITECTS
• EDELMAN
• EDO
• EMIL VAN ESSEN, LLC
• EMMI SOLUTIONS
• EN ENGINEERING
• ENOVA
• ENVESTNET
• ENVIRONMENTAL SYSTEMS DEISGN
• EPSTEIN
• EQUINOX
• EQUITY GROUP INVESTMENTS
• EQUITY LIFESTYLE PROPERTIES, INC.
• EQUITY OFFICE PROPERTIES
• EQUITY RESIDENTIAL
• EVED
• EVRAZ, INC. NA
• EXIDE TECHNOLOGIES
• EXP
• EXPERIAN
• EXXONMOBIL
• EZE CASTLE INTEGRATION
• EZE SOFTWARE GROUP
• FACTSET RESEARCH SYSTEMS
• FEDERAL LIFE INSURANCE COMPANY (MUTUAL)
• FEDERAL RESERVE BANK OF CHICAGO
• FELLOWES
• FFASTFILL, INC.
• FIDELITY INVESTMENTS
• FIDESSA
• FINRA
• FIREMANS FUND
• FITCH RATINGS
• FITZGERALD ASSOCIATES ARCHITECTS
• FOLLETT
• FORSYTHE TECHNOLOGY, INC.
• FORTUNE BRANDS HOME & SECURITY, INC.
• FPL ASSOCIATES/FERGUSON PARTNERS
• FREEDMAN SEATING COMPANY
• FRESENIUS KABI USA
• FRONTENAC
• FRUITION PARTNERS
• G2 USA
• GA COMMUNICATION GROUP
• GAIATECH, INC.
• GARY COMER INC. (GCI)
• GAS TECHNOLOGY INSTITUTE (GTI)
• GATX CORPORATION
• GE CHICAGO
• GEA FARM TECHNOLOGIES, INC.
• GELBER GROUP, LLC
• GENERAL BOARD OF PENSION AND HEALTH BENEFITS
• GENERAL GROWTH PROPERTIES
• GENERAL SERVICES ADMINISTRATION
• GENEVA TRADING USA, LLC
• GENSLER
• GET + NETRIX, LLC
• GETCO LLC
• GIRLS ON THE RUN-CHICAGO
• GLOBAL CAPACITY
• GOLDBERG KOHN
• GOLDMAN SACHS
• GOLUB CAPITAL - CHICAGO TEAM
• GOOD HARBOR FINANCIAL, LLC
• GOOGLE
• GRANT THORNTON LLP
• GRAPHIC PACKAGING INTERNATIONAL
• GREAT AMERICAN GROUP
• GREELEY AND HANSEN LLC
• GREENBERG TRAURIG LLP
• GREENLINE
• GREENTARGET
• GROSVENOR CAPITAL MANAGEMENT
• GROUPON
• GUARANTEE TRUST LIFE INSURANCE COMPANY
• GUGGENHEIM PARTNERS
• H.W. LOCHNER, INC
• HALL & PARTNERS
• HALVORSON AND PARTNERS
• HARBOR CAPITAL ADVISORS, INC.
• HAVAS MEDIA
• HDI-GERLING AMERICA INSURANCE CO
• HDR, INC.
• HEIDRICK & STRUGGLES
• HEITMAN
• HERITAGE-CRYSTAL CLEAN, INC.
• HILCO
• HILLSHIRE BRANDS
• HISCOX CHICAGO
• HOLABIRD & ROOT
• HORWICH COLEMAN LEVIN
• HOUGHTON MIFFLIN HARCOURT
• HS2 SOLUTIONS
• HSBC
• HUB INTERNATIONAL
• HURON CONSULTING GROUP
• HYATT HOTELS CORPORATION
• ICAP
• ICON IDENTITY SOLUTIONS
• ICROSSING
• IFBYPHONE
• ILLINOIS BONE AND JOINT INSTITUTE
• IMC FINANCIAL MARKETS
• INFOGIX
• INFORMATICA
• INITIATIVE
• INNERWORKINGS
• INSIGHT GLOBAL
• INTERCONTINENTALEXCHANGE
• INTERNATIONAL FINANCIAL GROUP
• INTL FCSTONE
• INTOUCH SOLUTIONS
• INXPO
• IPC SYSTEMS
• IRI
• IRONSHORE INSURANCE
• ISMIE/ISMS
• ISSA
• JACKSON NATIONAL ASSET MANAGEMENT
• JEFFERIES AND COMPANY
• JELLYVISION
• JHL CAPITAL GROUP LLC
• JMB INSURANCE
• JOHNSON CONTROLS, INC.
• JONES LANG LASALLE
• JPMORGAN CHASE & CO.
• JUMP TRADING
• KAPOW EVENTS
• KCURA CORPORATION
• KETCHUM
• KINSHIP TRUST COMPANY
• KIRKLAND & ELLIS LLP
• KLEIN & HOFFMAN
• KOENIG & STREY
• KORN/FERRY INTERNATIONAL
• KOVITZ INVESTMENT GROUP, LLC
• KUEHNE + NAGEL
• LANGDON & EMISON
• LEASEPLAN USA
• LEGAL & GENERAL INVESTMENT MANAGEMENT AMERICA
• LEND LEASE
• LEVY RESTAURANTS
• LEXUS CENTRAL AREA
• LEYDIG, VOIT & MAYER, LTD.
• LIFE SPINE
• LIFESTART WELLNESS NETWORK
• LINCOLN INTERNATIONAL
• LINCOLN PROPERTY COMPANY
• LINKEDIN
• LOCKTON COMPANIES
• LOOP CAPITAL
• LYCEE FRANCAIS DE CHICAGO
• MACK & ASSOCIATES
• MACY'S
• MADDOCK DOUGLAS
• MAGNANI CARUSO DUTTON
• MAGNETAR CAPITAL
• MAGNUSSON KLEMENCIC ASSOCIATES
• MAINSTREET ADVISORS
• MARCO CONSULTING GROUP
• MARIN SOFTWARE
• MARKETING & TECHNOLOGY GROUPP
• MARKETING WERKS
• MARSH USA
• MASUDA FUNAI
• MATHEMATICA POLICY RESEARCH
• MATTERSIGHT CORPORATION
• MAVEN WAVE PARTNERS
• MCGLADREY
• MCMASTER-CARR SUPPLY COMPANY
• MEDLINE INDUSTRIES, INC
• MERCER
• MERGE HEALTHCARE
• MESIROW FINANCIAL
• METRA
• METROPOLITAN CAPITAL
• METROPOLITAN WATER RECLAMATION DISTRICT
• MICHAEL PAGE
• MIDLAND IRA
• MILLER COOPER & CO., LTD.
• MILLERCOORS
• MILLIMAN, INC.
• MILLION DOLLAR ROUND TABLE
• MINTEL
• MISO
• MODIS
• MOLEX INCORPORATED
• MONROE CAPITAL
• MORGAN STANLEY
• MORNINGSTAR, INC.
• MORTENSON CONSTRUCTION
• MOTOROLA MOBILITY LLC
• MUCH SHELIST, P.C.
• NADEX
• NALCO AN ECOLAB COMPANY
• NAN MCKAY & ASSOCIATES
• NARRATIVE SCIENCE
• NASDAQ OMX CHICAGO OFFICE
• NATIONAL EXPRESS CORP
• NATIONAL FUTURES ASSOCIATION
• NAVISTAR
• NEAL GERBER & EISENBERG LLP
• NEOVIA
• NEUBERGER BERMAN
• NEWEDGE USA, LLC
• NEWELL RUBBERMAID
• NEWS AMERICA MARKETING
• NHS CHICAGO
• NIELSEN
• NMH GENERAL SURGERY
• NOKIA
• NORC
• NORCON, INC.
• NORTHERN TRUST
• NORTHROP GRUMMAN
• NORTHSHORE UNIVERSITY HEALTHSYSTEM DEPARTMENT OF ANESTHESIA
• NUVEEN INVESTMENTS, INC.
• NVISIA
• NWEA
• NXT CAPITAL
• NYSE EURONEXT
• OAK RIDGE INVESTMENTS
• OFFICE OF THE CITY TREASURER
• OGILVY
• OLIVER WYMAN
• OLSON PR
• OMD
• OPTIONS CLEARING CORPORATION
• OPTIONSCITY SOFTWARE
• OPTIVER US, LLC
• ORBITZ WORLDWIDE
• OSTROW REISIN BERK & ABRAMS, LTD.
• PANDUIT CORP.
• PANGEA VENTURES, LLC
• PAPYRUS-RECYCLED GREETINGS, INC.
• PARKER HANNIFIN
• PATTEN INDUSTRIES
• PATZIK FRANK & SAMOTNY, LTD.
• PAYLOCITY
• PEAK6 INVESTMENTS, LP
• PELOTON GROUP
• PEOPLES GAS & NORTH SHORE GAS
• PEPPER CONSTRUCTION COMPANY
• PERFICIENT
• PERFORMICS
• PERKIN ELMER
• PERKINS COIE LLP
• PERKINS EASTMAN
• PERKINS+WILL
• PFIZER
• PHD WORLDWIDE
• PIONEER ENVIRONMENTAL GEOTECHNICAL GEOTHERMAL
• PLANTE MORAN
• PLATINUM CONVERTING INC.
• PLEXUS MANUFACTURING SOLUTIONS
• PORTFOLIO SOLUTIONS GROUP
• POTESTIVO & ASSOCIATES, P.C.
• POWER CONSTRUCTION COMPANY
• PPC ASSOCIATES
• PPM AMERICA, INC.
• PRAXAIR
• PRESENCE HOLY FAMILY MEDICAL CENTER
• PRESS GANEY ASSOCIATES, INC.
• PRIMARY ENERGY
• PRIMERA ENGINEERS
• PRINCIPAL FINANCIAL GROUP
• PROFICIENT HEALTH CARE SERVICES, INC.
• PROPEL ZERO
• PROTIVITI
• PSC GROUP, LLC
• PUTMAN MEDIA
• PWC
• R&M CONSULTING
• RABJOHNS FINANCIAL GROUP
• RANDA ACCESSORIES
• RAPOPORT LAW OFFICES, P.C.
• RAYMOND JAMES CHICAGO
• RBC WEALTH MANAGEMENT
• RBS
• RBS CITIZENS – TREASURY SOLUTIONS
• RECSOLU
• RED FROG EVENTS
• REDBOX / COINSTAR
• REGIONAL TRANSPORTATION AUTHORITY
• RESOLUTION MEDIA
• REWARDS NETWORK
• REXAM
• REYES HOLDINGS
• RGLA SOLUTIONS
• RIGHTPOINT
• RISE RUNNERS
• RJA GROUP
• ROBERT BOSCH LLC
• ROBERT W BAIRD & CO INC
• ROCKIT RANCH PRODUCTIONS
• RONIN CAPITAL, LLC
• ROTARY INTERNATIONAL
• RUSSELL REYNOLDS ASSOCIATES
• RYERSON
• S&P CAPITAL IQ
• SAKONENT
• SALESFORCE
• SAP AMERICAS
• SARGENT & LUNDY
• SAVO
• SCHNEIDER LOGISTICS
• SCIQUEST
• SCOTTRADE
• SDI (SYSTEM DEVELOPMENT.INTEGRATION, LLC)
• SEARS HOLDINGS CORPORATION
• SEGAL
• SEGALL BRYANT HAMILL
• SEKO WORLDWIDE, LLC
• SENIOR LIFESTYLE
• SG2 HEALTHCARE INTELLIGENCE
• SHC DIRECT
• SHEDD AQUARIUM
• SHEFFIELD ASSET MANAGEMENT, L.L.C.
• SHEFSKY & FROELICH
• SHOPPERTRAK
• SHOWINGTIME
• SHURE INCORPORATED
• SIEMENS MEDICAL SOLUTIONS - MOLECULAR IMAGING
• SKENDER CONSTRUCTION
• SKIDMORE OWINGS & MERRILL
• SKILLS FOR CHICAGOLAND'S FUTURE
• SLALOM CONSULTING
• SMITHBUCKLIN CORPORATION
• SMS ASSIST
• SOCIAL SECURITY ADMINISTRATION
• SOUTH SUBURBAN COLLEGE
• SPENCER STUART
• SPOTIFY
• SPROUT SOCIAL INC
• SRAM
• STARCOM MEDIAVEST GROUP
• STAX INC.
• STERLING PARTNERS
• STIFEL
• STONERIDGE ADVISORS
• STOUT RISIUS ROSS (SRR)
• STRATA
• STV INCORPORATED
• SUITE HOME CHICAGO
• SULLIVAN INTERNATIONAL GROUP
• SULLIVAN, COTTER AND ASSOCIATES, INC.
• SUNGARD
• SWC TECHNOLOGY PARTNERS
• SWETT & CRAWFORD
• SYMMETRI MARKETING
• SYSKA HENNESSY GROUP
• TAHOE PARTNERS
• TD AMERITRADE
• TEAM THORNTON TOMASETTI
• TECHNOLOGY SERVICES GROUP
• TEKSYSTEMS
• TELULAR CORPORATION
• TEXTURA CORPORATION
• THE BURKE GROUP
• THE JOINT COMMISSION
• THE JOYCE FOUNDATION
• THE LEUKEMIA & LYMPHOMA SOCIETY
• THE LIFEBOOK COMPANY, LLC
• THE PRIVATE BANK
• THE UNIVERSITY OF CHICAGO
• THE WARRANTY GROUP
• THOMSON REUTERS
• TIBRA TRADING AMERICA LLC
• TOPEL FORMAN
• TOTAL ATTORNEYS
• TOWER GROUP COMPANIES
• TOWERS WATSON
• TRADING TECHNOLOGIES INTERNATIONAL, INC.
• TRANS UNION
• TRANSCO PRODUCTS INC.
• TRANSWESTERN
• TREASURY STRATEGIES, INC.
• TRIPP LITE
• TRIS3CT
• TRUE PARTNERS CONSULTING
• TRUSTMARK COMPANIES
• TTX COMPANY
• TURNER BROADCASTING
• TURNER CONSTRUCTION COMPANY
• UBS
• UNILEVER
• UNITED AIRLINES
• UNITEDHEALTHCARE OF ILLINOIS
• URS CORPORATION
• US ARMY CORPS OF ENGINEERS
• US DEPT OF LABOR - ETA
• US FOODS
• USA TODAY
• USG CORPORATION
• UTLX/MARMON/WELLSLAMONT
• V3 COMPANIES
• VALERIO DEWALT TRAIN
• VALUECLICK
• VENTAS
• VERIT ADVISORS LLC
• VI
• VOA ASSOCIATES INCORPORATED
• W. E. O'NEIL CONSTRUCTION CO.
• WALGREENS
• WALL STREET JOURNAL
• WALSH CONSTRUCTION
• WEISERMAZARS
• WELLS FARGO
• WEST MONROE PARTNERS
• WESTERN GOLF ASSOCIATION
• WHEELS, INC.
• WIEDNER & MCAULIFFE, LTD.
• WIGHT AND COMPANY
• WILLIAM BLAIR & COMPANY
• WILSON SPORTING GOODS
• WINSTON & STRAWN LLP
• WINTRUST FINANCIAL CORPORATION
• WISS, JANNEY, ELSTNER ASSOC. INC.
• WMS GAMING
• WOLVERINE EXECUTION SERVICES
• WORKDAY
• WORLD KITCHEN
• WORLD'S FINEST CHOCOLATE
• WYNRIGHT
• XR TRADING LLC
• YAHOO! INC.
• YASKAWA AMERICA, INC
• YMCA METRO CHICAGO
• YMCA OF THE USA
• ZACHRY NUCLEAR ENGINEERING, INC.
• ZEBRA TECHNOLOGIES CORPORATION
• ZIEGLER
• ZOCALO GROUP
• ZS ASSOCIATES
• ZURICH