3D Instruments Inc.	3M	AC-DC Electronics
Accusplit	Acme Electric	Acterna
Advantest	AEHR	AEMC
Aeroflex	Aerospace	Agema
Ailtech	AIM-USA	Alcoa - Fujikura
Alcor, Inc.	Alfred	Alnor
Altek	Ameritec	Ametek
Amp	AMPG	Amplifier Research
Amprobe	Amrel	Analogic
Ando	Andrew Corp.	Anritsu
Apc	Applied Instruments, Inc.	Argo Systems
Armstrong	Array	Ashcroft
Associated Research	Astec	Astro Med
Astron	AT-T	ATEK Corp
ATN Microwave	Audio Precision	AUL Instruments, Inc.
Autek	AV Power	Avantron
Avcom	Avo	Avtech
AW Sperry	Bacharach	Baker Instrument
Ballantine	Beale	Beckman
Beco	Behlman	Belar Electronics
Bendix	Bermar	Berry
Bertan	BF Goodrich Aerospace-JcAir Test Systems	Biccotest
Biddle	Bio-design	Biosystems
Biotek	Bird	BJM
BK Precision	Black box	BMI
BNC	Boonton	Bosch
Bowmar	Brown and Sharpe	Bruel - Kjaer
California Instruments	Canadian Utilities Supply	CDI
CDT	Cerjac	Chance
Charleswater	Chatillon	Chesilvale Electronics
Chicago Steel Tape	Chroma	Cirris
Clarence Controls	Clarke-Hess	Clarostat
Clinton Instrument	CMC	Coastel Cable Tools
Colby	Com-Ten	Comdel
Compact Power Co.	Comsonics, Inc.	Comtech PST
Consultronics	Convex	Corelis
Corning	Crescent	Criterion Instruments Ltd.
Crown	CTC	CTC - Davar
Cushman	Dale Technology	Data I-O
Data Management Corporation	Data Precision	Datacom Technologies
Datron	Datum	DCM
DDC	DDI	Decom Systems
Delaire	Deltron	Desco
Detector Systems	Dewalt	Dickson
Dicon	Diego Systems	Digital
Digital Engineering	Digital Lightwave	Digitech
Doble	Dosimeter Corporation	DPL
Dragar	Dranetz	Dressler
Druck	DTS	Dynaload
Dynamic Industries	Dynatech Nevada	Dynatel
E-H Research Labs	Eaton	ECI
Ectron	ED&D	EDC
EEV	Efratom	EG-G
EH Research	EIP	Electro Science
Electro-Metrics	Electrodata	Electronic Research
Elgar	Elgenco	Elind
Emco	EMI	Endevco
ENI	Ericsson	ESI
ETS	Exfo	Extech Electronics
Extech Instruments	Faith Co	Farinon
FCC Fischer	Federal	Fisher
Fisher Scientific	Fiskars	Fitel
Fluke	Flygt	Fulcrum Communications
FW Bell	Gamma Scientific	Gangpro
Gastech	GE	General Dynamics
General Eastern	General Microwave	General Radio
General Resistance	Gertsch	Gigatronics
Glassman	Global Specialties	GMP
GN Nettest	Goldak	Goodwill Instruments
Gould - Brush	Graphtec	Gray Instrument
Greenlee	Grundig	Guildline
Haefely Technology	Haefely Trench	Halcyon
Hameg	Harris Dracon	Harrison
Hart Scientific	Hastings	HDW
Heath	Heise	Helper Instruments
Hickok	High Voltage Inc.	Hilti
Hioki	Hios	Hipotronics
Hitachi	HK Porter	HLI
Holaday Industries	Holt Instruments	Honeywell
HP - Agilent	HP - Cerjac	Hsiang Cheng Electric (HCE)
HT Communications	Hughes	Huntron
Huskie	Idacom	IET
IFI	IFR - Aeroflex	Ikegami
ILX	IMCS	Industrial Instruments
Industrial Scientific	Instek	Instron
Intelco	Interface Technology	Intermec
International Light	Interpower	ISA
Ishida	Ithaco	ITI
ITT	Iwatsu	Japan Radio Co
JDS Optics	JDS Uniphase	JDSU
Jerrold	JFW Industries	Jofra
Julie Research	K L Microwave	Kaiser Systems
Kalmus	Kay	Kaye
Keithley	Kenwood	Kepco
Kestrel	Keytek	Kikusui
Kinetic Systems	Kistler	Klinger Electric
Krohn Hite	Lab	Lake Shore Cryotronics
Lambda	Landshire	Laplace Instruments
Larus	Laser Precision	Lasertron
Leader	Lecroy	Lectro Products
Leeds - Northrup	Lenkurt	Levear
Lightech	Lodestar	Logimetrics
Lucent	Lumidor	Luzchem
M/A Com	Mac Tools	Magni
Magtrol	Makita	Malor
MAR Associates	Marconi	Mark Products
Markenrich	Matrix	Matsusada Precision Inc.
Maury Microwave	MEC	MegaPhase
Megger	Melles Griot	Merge
Metropolitan Microwave Corp.	Metrotech	Metrotel
Mettler - Toledo	Micro Instrument	Micro-Now
Microlab	Micronetics	Microscan
Microtest	Microwave Development Labs	Microwave Power Devices
Mideastern Industries	Midtronics	Mikron
Millivac	Milwaukee	Minolta
Mirage	Mitutoyo	Modulation Sciences, Inc. ( MSI )
Monarch	Monroe	Mopeco
Motorola	Mountz	MPD
MSA	Multi-Amp	Nanofast
Narda	National Instruments	Navtel
NCI	Netech	Network Communications
Neutrik	Newport	Nicolet
Nikon	Niton	Noisecom
Noiseken	North Atlantic	Northeast Electronics
Northern Telecom	Noyes Fiber Systems	Nutmeg
Ohio Semitronics	OKI	Omega
Online Power	Ophir	Optoelectronics
Ortel	Oscilloquartz SA	Pacific Measurements
Pacific Power Source	Packetstorm	Panasonic
PAR	Par - EG-G	Parkway Systems
Pearson Electronics	Pelsue	Pendulum Instruments
Penn Airborne	Performance Technologies	Perkins
Peschel	Philco	Philips
Phoenix	Photodyne	Photon Kinetics
Photonetics	Photonic Integration Research	Photonix
Physiologic Instruments	Picotest	PIE
Pine Instruments	PMC	Polar Instruments
Polarad	Potomac Instruments	Power Designs
Power Ten	Powertek	Powertron
Preamble	Premier	Prime Technology
Primetech	Pro-Log	Prodigit
Programma	Programmed Test Sources	Progressive Electronics
Prosser	Protek	PTS
PTT	Quadtech	Quantum Data
Quartzlock	Ra-Nav Laboratories	Racal Dana
Racal Instruments	Radio Shack	Radiodetection
Ramsey Electronics	Random	Ratcliff
Raychem	Reichart	Reliance Telcom
Relm	Republic Electronics	RF Communications
RFL	Rifocs	Riser Bond
RKI	Rockland	Rockwell Collins
Rod-L	Rohde - Schwarz	Rolatape
Ross Engineering	Rotek	Ruska
Rycom	Sadelco	Sage
Santec	Saunders Associates	Schaffner
Schlumberger	Schonstedt Instrument Company	Scientific Atlanta
Scientific Test	Scott	Sencore
Sensitive Research	Shallcross	Sharp
Shiloh Industries	Shortridge Instruments	Siecor
Siemens	Sierra	Signal Recovery
Simco	Simpson	Singer
Skil	Slaughter	Snap-On
Solar Electronics	Solartron	Sonoma
Sony	Sorensen	Sotcher
Sound Technology	Spectracom	Spectronic
Spellman	Spirent	Spirent Smartbits
Stancor	Stanford Research	Starrett
STB Transformer	STC	Stihl
Sumitomo	Sun Electronic Systems	Sunrise Telecom
Symmetricom	Systron Donner	T-Com
Tanaka	TAS	Tautron
Techne	Technipower	Techron
Tegam	Tekelec	Tektronix
Tel Instrument	Telesoft Technologies	Telewave
Tellabs	Teltone	Telxon
Tempo	Temptronic	Tenma
Termaline	Tettex	Texio
Thermacal	Thermotron	Thomas & Betts
Thunder Scientific	TIF	Timco
Topward	TPI	Tracor
Transcat	Transistor Devices	Transmation
Trek	Tremetrics	Trend
Trend Aurora	Trig-Tek	Trilithic
Triplett	Troemner	Tru-Stone
Trygon	TSI	Tsurumi
TTC - Acterna	TTI	Tylink
U-Teck	Uniteq	UTE Microwave, Inc.
Utec	UVP, Inc.	Valhalla
Vanguard Instruments	Varian	Vector-Vid
Velonex	Vena Engineering	Videotek
Vishay Measurement Group	Visual Information Institute	Vitrek
Viz	Voltech	Voyager
Vu-Data Corporation	VXI Technology	Wahl
Wandel - Goltermann	Waveline	Wavetek
Wayne Kerr	Weinschel	Westell
Western Electric	Western Graphtech	Western Progress
Weston	Wilcom	Willtek
Wiltron	Winslow	Xantrex
Yokogawa