3M
A T & T Wireless
Accord Customer Care (Singapore)
Alcatel
Alltel Mobile
Alpha Source Inc.
America West Airlines
American Airlines
Americom HPC
Amoi Electronics (China) 
Ascom-Bosh Telecom
Aselsan Electronics Industry Inc. (Turkey)
Asurion Insurance Services
Atomic Energy of Canada
Australian Army
Australian Federal Police
Bangkok Police
Batteries Sooner Inc.
Bay Area Rapid Transit (BART)
BC Ambulance Service
Bee Line Vimpelcom (Russia)
Beijing Police Department
Belgian Army
Belgian Railway
Belgium Radio and Television
Bell Mobility Cellular
Benefon Oy (Finland)
Black & Decker
Boeing
Brightpoint
Brightstar Corporation Inc.
Burlington Northern Railroad
California Dept. of Corrections
California Highway Patrol
Canadian Armed Forces
Canadian Broadcasting Corp.
Canadian Coast Guard
Canadian National Railway
Canadian Pacific Railway
Cellcom (Israel) 
Cellstar (Latin America)
Cellular One
Celtel Cento America
Celumovil (Colombia)
Centennial Puerto Rico
Cernavoda Power Plant (Romania)
Charm Sciences Inc.
Chevron Corporation
Chicago Police
China Light and Power 
Cingular
City of Irving
City of Miami
City of Owensboro
Codelco (Chile)
Columbia Sportswear Company
Continental Airlines
County of Los Angeles
Cricket Communications
CWork Solutions, LP
Daimler-Chrysler
Delta Airlines
Department of Forestry (Turkey)
Depuy Orthopaedics Inc. 
Detroit Edison Company
Diehl Luftfahrt Elektronik
Digecor Inc.
Disney World 
Dow Chemicals
Dual-Voltage Co.  (HK) 
E-Comm Emergency Communications
Ejercito de Colombia
Environment Canada
Esso Petroleum
Exxon
Finnish Navy
Fire Dept. of New York
Fox Television
Fraser Health Authority
Fruit of the Loom (Union Underwear Company)
Fujitsu America
Gap Inc.
GE Medical Systems
GEC-Marconi
General Motors
Geophysical Survey Systems Inc.
Germanos Group of Greece
Global Technology Systems
Globalstar
Goodyear Tire & Rubber
Government of Canada
GP Battery Graco
Greater Manchester Police
GTE 
Haemonetics Corporation
Harborview Medical Center
Harris Rf Communications
Hewlett Packard
Hitachi Denshi (Japan)
Hong Kong Telecom
Hudson Bay Mining & Smelting Co. Limited
Hutchison Telecom
IBM
Interior Health Authority
Internal Revenue Service
Itronix Corporation
Jamaica Telephone Company
Jannatec Radio Technologies 
Japan National Agency
John Hopkins University
Johnson & Johnson
Jordan Public Security Directorate
Kenwood
LA County Fire Department
LA Unwired LLC
Laerdal Medical
LG Electronics
LG Infosystems
Lockheed Martin
London Fire Brigade
London Underground
Los Angeles Airport
Los Angeles County Fire
Lucerne Police (Switzerland)

M/A-Com Radio Systems
Mansour Trading Co. Ltd.
Maxon America, Europe
Medical Research Laboratories
Medtronics-Physio Control
Miami Fire-Resuce
Ministry of Defence (UK)
Mississippi Power Company
Mitsubishi
Mobile Oil
Moduslink Corporation 
Motorola
N2 Group Inc.
NASA
National Power Corporation
NATO
NBC
NEC Mobile
Nelcom (Israel) New Brunswick, DOT
New York City of Corrections
New York City Transit System
New York Stock Exchange
New Zealand Police
Nippon Airport Radio
Nokia
Norwegian Army
NTT DoCoMo (Japan)
Olivetty
Ontario Power Generation
Otto Engineering
Pacific Gas & Electric
Panametrics - NDT
Panavision
Pantech Wireless
Paris Police
Partners Healthcare System
Petro Canada
Petroleos Mexicanos
Philips Medical Systems
Policia Civil (Brazil)
Qatar Mobile Telephone
Qualcomm
Racom Corporation
Recellular Inc.
Retaildata, LLC
Reuters Television
Revivant
Robert Bosch Tool Corp.
Rogers Wireless Inc.
Royal Canadian Mounted Police
Royal Malaysia Police
Royal New Zealand Navy
Rozon Batteries Inc. 
Saab
Sagem
Samsung
Shanghai TV Station (China)
Seattle Fire Dept. 
Siemens
Singapore Civil Defence Force
Sistemas Y Servicios De Communicaciones S.A.
Solectron USA Inc. 
Sony-Ericsson
Southwestern Bell 
Spar Aerospace
Sprint/Nextel
Sri Lanka Air Force
Sri Lanka Army
State of California
State of Rhode Island
Swedish Defense Force
Swiss Army
Swiss Federal Rail (SBB) 
Symbol
Taipei Fire Department 
Tait Radio Communications
Target
TCL Corporation
Telcel Cellular
Telecom Personal (Argentina)
Telefonica
Television Azteca (Mexico)
Teltronic
Telus Mobility
Tetra Teleservices (India)
Texaco
Texas Eastman Co. 
Thales Communications Inc. 
Thoratec Corporation
Toronto Fire Services
Touchtone/Image 1 Wireless
Turkish Police
Turner Broadcasting System
U.S. Cellular
United Nations
United Parcel Service 
University Hospital AZ Brussels
University of Michigan Hospitals
University of Wisconsin Hospital and Clinics
US Air Force 
US Army
US Army Corps of Engineers
US Border Patrol
US Bureau of Land Mgt.
US Capitol Police
US Coast Guard
US Dept. of Corrections
US Dept. of Defense
US Dept. of Energy
US Dept. of Justice
US Navy
UStar/AudioVox
Ventracor (Australia)
Verizon
Vitelcom (Spain)
Washington State Patrol
Welch Allyn Protocol 
WR Systems Inc.
Zebra Technologies Corporation 
Zoll Medical Corporation
ZurichPolice (Switzerland)