Client List

ECI serves the needs of well over a 100 clients throughout the city of Chicago and Northeast Illinois.
To view our interactive client list by region, mouse over the list of service areas below.

  • Accretive Health
  • ACE USA
  • Acordia Insurance
  • AIA Chicago
  • Allsteel
  • American Express
  • American Planning Association
  • Apple
  • Archipelago Holdings, Inc.
  • Bain & Company, Inc.
  • Bates & Carey
  • Beecken Petty O'Keefe & Company
  • BMO Capital Markets
  • Bridge Healthcare
  • Brinks
  • Chicago Architectural Foundation
  • Chicago Trading Co.
  • Clark Hill
  • Commodity Futures Trading Commission
  • Coogan, McNabola & Dolan
  • Disversified Financial
  • Draper & Kramer
  • DRW
  • Duff & Phelps LLC
  • Easter Seals Metropolitan Chicago
  • Equinix, Inc.
  • Fair Isaac Corporation
  • Federal Reserve Bank of Chicago
  • Fourth Presbyterian Church
  • Globalcom
  • Goldman Sachs
  • Google
  • Hostway Corp.
  • Hyatt Center Management
  • Johnson Publishing Co.
  • Jump Trading LLC
  • Merit Capital
  • Milliman Inc.
  • Mitel Networks
  • Navigant Consulting, Inc.
  • Newly Weds Foods
  • Northwestern Memorial Hospital
  • O'Keefe, Lyons & Hynes LLC
  • Piper Jaffray & Co.
  • Pritzker Realty Group
  • Quantitative Analytics, Inc.
  • Red Frog Events
  • Ronin Capital, LLC
  • Segall, Bryant & Hamill
  • SGA Youth and Family Services
  • Silver Point Capital, L.P.
  • Skimore, Owings & Merrill
  • Smart & Associates
  • Solomon Cordwell Buenz
  • Spot Trading LLC
  • SPSS
  • Sun Trading
  • Swedish Trade Council
  • Tressler, Soderstrom, Maloney & Priess, LLP
  • University of Illinois
  • Upshot
  • Waterton & Associates
  • Waud Capital
  • Wells Fargo Insurance Services
  • Willis HRH
  • XR Trading