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	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	OZ Optics
Pacific Measurements	Pacific Power Source	Packetstorm
Panasonic	PAR	Par - EG-G
Parkway Systems	Pearson Electronics	Pelsue
Pendulum Instruments	Penn Airborne	Performance Technologies
Perkins	Peschel	Phenix Technologies
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
SPC Technology	Spectracom	Spectronic
Spellman	Spirent	Spirent Smartbits
Stancor	Stanford Research	Starrett
STB Transformer	STC	Stihl
Sumitomo	Sun Electronic Systems	Sunrise Telecom
Symmetricom	SyntheSys Research	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	Texscan	Thermacal
Thermo Electric	Thermocoax	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