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Public Sector Clients
- U. S. Department of Justice
- U.S. Department of Transportation
- Amtrak
- National Academy of Sciences
- Commonwealth of Massachusetts
- State of Hawaii
- State of Illinois
- Illinois State Toll Highway Authority
- State of Maryland
- State of Michigan
- State of Minnesota
- State of Missouri
- State of New York
- State of North Carolina
- State of Ohio
- State of Texas
- State of Washington
- City of Augusta
- City of Aurora
- City of Austin
- City of Baltimore
- City of Birmingham
- City of Chicago
- City of Cleveland
- City of Corpus Christi
- City and County of Denver
- City of Dayton
- City of Durham
- City of Fayetteville
- City of Jacksonville
- City of Kansas City, Missouri
- City of Memphis
- City of Minneapolis
- City of New York
- City of St. Louis
- City and County of San Francisco
- City of Tampa
- City of Tucson
- Bi-State Development Agency d/b/a Metro St. Louis
- Capital Metropolitan Transportation Authority
- Greater Cleveland Regional Transit Authority
- Dallas Area Rapid Transit
- Hampton Roads Transit Authority
- Regional Transit Authority, Corpus Christi, Texas
- Regional Transportation Authority of Illinois
- Jacksonville Transportation Authority
- Kansas City Area Transportation Authority
- Los Angeles Metropolitan Transportation Authority
- Northeast Illinois Regional Commuter Railroad Corporation d/b/a Metra
- Pace Bus System
- Southeastern Pennsylvania Transportation Authority
- VIA Transit, San Antonio
- Dallas/Fort Worth International Airport
- Hillsborough County/Tampa Aviation Authority
- Jackson Municipal Airport Authority
- Lambert International Airport
- Memphis-Shelby County Airport Authority
- Metro. Nashville Airport Authority
- Salt Lake City International Airport
- Metropolitan Sewer District of Cincinnati
- North East Ohio Regional Sewer District
- South Florida Water Management District
- Broward County, Florida
- Cook County, Illinois
- Dallas County, Texas
- Miami-Dade County, Florida
- Ramsey County, Minnesota
- St. Louis County, Missouri
- Travis County, Texas
- Unified Government of Kansas City, Kansas and Wyandotte County, Kansas
- Portland Development Commission
- Metropolitan Pier & Exposition Authority of Illinois
- Portland Housing Authority
- City Colleges of Chicago
- Chicago Public Schools
Private Sector Clients
- Advocate Health Care Systems
- Arrow Messenger Services, Inc.
- Ativo Capital Management
- Baker & Hostetler, LLP
- Burr & Smith, LLP
- Chicago United
- Chico & Nunes, LLP
- Colson Associates, Inc.
- DLZ, Inc.
- Equal Justice Society
- Gaffney PMI, Inc.
- GlobeFlex
- J. E. Dunn Construction Co.
- Infotech, Inc
- Intralot, Inc.
- Kelly Garnsey Hubbell & Lass, LLC
- Lathrop & Gage, LLC
- Louis Jones Enterprises, Inc.
- Mayer Brown, LLP
- MCI, Inc.
- NAL, Inc.
- National Economic Research Associates, Inc.
- Parsons Brinckerhoff, Inc.
- Perkins Coie, PC
- Reggio’s Pizza, Inc.
- Sprint, Inc.
- Stetler & Duffy, PC
- System Development Integration, LLC
- The TAC Companies, LLC
- Thompson Coburn, LLP
- US West, Inc
- W.E. O’Neil Company, Inc.
- Williams & Mullen, LLP