Consulting Services:
Boston Consulting Group
Deloitte Touche Tohmatsu (Australia)
KPMG
LexisNexis
Raytheon Polar Services Company

Educational Institutions:
ASU College Of Business
Boston University 
Chesapeake Public Schools
College of William & Mary
Duke University
École de Technologie Supérieure (Canada)
Ecole Polytechnique (France)
Florida State University
Harvard University
International University of Japan
Iowa State University
Kyonggi University (Korea)
Michigan State University
New Mexico Junior College
Oxford University Press
Penn State University
Princeton University
San Juan Unified School District
Singapore Polytechnic
Syracuse University 
Tufts University
Tulane Law School
University of Denver
University of Georgia
University of Idaho
University of Kentucky
University of Manitoba
University of Maryland
University of Michigan
University of Northern Colorado
University of Southern California
University of Southern Denmark
University of Tennessee
University of Texas
University of Toronto
University of Wisconsin Colleges

Energy / Utility:
Bonneville Power Administration
Duke Energy
Energy Northwest
Guernsey Electricity (UK)
Hawaiian Electric Company, Inc.

Entertainment / Media:
Atlanta Journal-Constitution
AOL
Fox Cable Networks
Fuji Television Network, Inc.(Japan)
Vivendi Universal Games

Financial Services:
Bank of Nova Scotia
BankAtlantic
Barclay Group
Berkshire Life Insurance
Cybertrader
First American Bank
Goldman Sachs
Industial Bank of Taiwan
Investkredit Bank AG
Lloyds TSB
Merrill Lynch
Stanford Financial Group
SunGard Wealth Management Services
VISA International
Wells Fargo Home Equity

Government / Military:
African Development Bank
City of New York
Defense Manpower Data Center 
Department of the Interior/NBC
Department of Veterans Affairs
Dept. National Defense (Canada)
Drug Enforcement Administration
European Patent Office
European Space Agency
Federal Public Defender's Office
Government of Singapore Investment Corporation Pte. Ltd.
IL Dept. of Transportation
Inter-American Development Bank
Lawrence Livermore National Labs
Lotteritilsynet (Norway)
Mitre Corporation
NASA 
National Institute of Health
National Research Council Canada
NC Secretary of State
New York State Defenders Association
Office of the Attorney General
State of SD Bureau of Information & Telecommunications
The British Council
US Air Force
US Army
US Department of Agriculture
US Department of Commerce
US Environmental Protection Agency
US Marine Corps
US Navy

Industrial / Manufacturing:
Caterpillar SARL
Celfa AG
Cemat Silicon S.A.
Danfoss A/S (Denmark)
Dril-Quip (Europe) Ltd
Elcoteq Network Corporation
Ford Motor Co.
Formosa Plastics Corp.
GM Europe GmbH
Lexmark Intl.
Lockheed Martin
Pennzoil-Quaker State Company
SITA SC
Universal Microelectronics Co., Ltd.   (Taiwan)

Police / Internet Security: 
Baton Rouge Police Dept.
Canadian Police College
DCIS - Defense Criminal Investigative Service
Denver Police Department
Durham Regional Police
Edmonton Police
Hamilton Police Service
Hong Kong Police Force
Integralis
Internet Watch Foundation
Interpol
Kansas Police Department
Kentucky State Police
Maine Computer Crime Task Force
Michigan State Police
New York State Police
Ohio Bureau of Criminal Identification and Investigation
Ontario Provincial Police
Royal Canadian Mounties
Royal Malaysia Police 
San Antonio Police Dept
South Australia Police
Suseo Police Agency, Korea

Pharmaceuticals / Healthcare: 
Aventis
Children's Hospital
Downey Regional Medical Center
ICU Medical
National Library of Medicine
UCSF Medical Center

Retail / Services:
Auto Europe
Bacardi - Martini N.V.
General Mills
Netherlands Board of Tourism
Philip Morris ITSC Europe Sàrl
Staples, Inc.
Winn Dixie Stores

Technology / Internet:
Akamai Data Systems
Checkpoint Systems Int. GmbH
C I Host
Cisco Systems
Concord Communications
Digital River, Inc
Doubleclick
Ebay
Equinix, Inc.
EUnet Internet Services
Extreme Networks
Finger Rock Technology
Genuity
Hewlett Packard Company
Homestore.com
Micron Europe
Motorola
NCR
NTT/VERIO
Network Appliance
Nokia Corporation
Oracle Corporation
PlaceWare, Inc.
Rackspace Managed Hosting
QUEST SOFTWARE, INC
Siemens
SonicWALL
Symantec Corp.

Telecommunications:
Above.net
Alaska Wireless Cable
British Telecom
Cable & Wireless
Cable One
Chunghwa Telecom Co., Ltd (Taiwan)
Clearstream
Comcast
Cox Communication
Deutsche Telekom
International Telecommunication Union (Thailand)
New Century InfoComm Tech Co., Ltd. (Taiwan)
ORBITEL ESP SA (Colombia)
PCCW HKT Ltd.(Hong Kong)
Sprint
Telia Mobile A/S
Telstra - Australia Telecom
Time Warner Cable
Trend Communications Ltd. (UK)
UnitedGlobalCom, Inc.
Verizon Wireless
Vonage
WorldCom