ACS

Alcatel Telecom

ALLTEL

AT&T

Athens Group

Bank of New York

Bearingpoint

BellSouth Communications

Boeing IS Services

British Telecom Syntegra

Bureau of the Census

CACI

Capgemini

CareFirst BlueCross BlueShield

Carreker Corp.

CGI Citigroup

CMG

Computer Sciences Corporation

Convergys

Defense Finance and Accounting Service

DOJ (Department of Justice)

DOD (OSD Programs Analysis & Evaluation)

EDS

Emerson Appliance Controls

Euroclear Bank

FAA

Fannie Mae

FBI

First Data Merchant Services

GE Fanuc Automation

GE Transport Global Signaling

Guidant

Harris Corporation

Hewlett-Packard

Howard Hughes Medical Institute

Honeywell Satellite Systems Operation

IBM Global Services

IBM Rational Software

ING Bank

ING GROUP

Johnson Controls

JP Morgan Chase

Keane, Inc.

KeyBank

KLA-Tencor

KPN Telecom IA&T, Holland

Lockheed Martin

Logica

Logistics Management Institute

LSI Logic Corp.

M/A Com Wireless

McKesson HBOC Corporation

Medtronics

Misys Healthcare Systems

Mitre Corporation

Motorola Communications

NAVAIR

Navy Cost Analysis Division

Navy SPAWAR ITC

Navy PEO Strike Weapons Unmanned Aviation

NCCI Holdings, Inc.

NCR

NCR Scotland

Noregon

Nortel Networks

Northrop Grumman - TASC

NOVUS Services

Ortho Biotech

Ortho Clinical Diagnostics

PacifiCare Health Systems

Ralston Purina

Raytheon

Rockwell-Collins

Royal Bank of Canada

Russell Information Technologies

RVS Verzekeringe

SAIC Information Systems

Siemens Building Technologies

Siemens Medical Systems

SRA

State of California

Stratus Computer, BV, Netherlands

Thomson Training & Simulation, UK

Unisys

US Air Force Cost Analysis Agency

US Army TACOM

US Army PEO Tactical Missiles

Westinghouse Rail Systems

Yokogawa Electric, Tokyo