| 3Com | 3M | |
| BBC | BOC | BPS |
| BT | BTI | Baird & Tatlock |
| Baldor | Balzers | Balzers Union |
| Barden | Barker & Williamson | Barksdale Inc. |
| Barr & Wray | Baumer | Beck |
| Beckhoff | Beckman Instruments | Belling-Lee |
| Bellingham & Stanley Ltd. | Berger Lahr | Berkleonics |
| Beta Squared | Bimba | Binder |
| Bio-Rad | Bird Electronic | Bishop Wisecarver |
| Blomme | Blondelle | Blue White |
| Bodine | Boiswood | Bourns |
| Branson | Brecoflex | Briskheat |
| British Telecom (BT) | Brook Control Gear | Brook Crompton |
| Brooks Instruments | Bruce | Bsl |
| Burkert | Burndy | Burr Brown |
| Burrell Pneumatic | Bussmann | |
| C&K | CB+B | CLAL |
| CLC | CTS | CVC |
| CVI | Cabletron Systems | Caburn MDC |
| Cajon | Cajon - See Swagelok | California |
| Cambridge Technology | Camille Bauer | Cannon |
| Cayman Systems | Cegelec | Cehess |
| Celerity (Formerly Unit Instruments) | Cemco | Centralab |
| Cerac | Charntec | Chell Instruments |
| Chem-Tec | Cherry | Chessel |
| Cigol | Cinch Jones TRW | Cisco Systems |
| Cita | Ckd Corp | Cleveland |
| Clippard | Cobrain | Comair Rotron |
| Comat | Comet | Comlinear |
| Compac Engineering | Compact Air Products | Compair Kellog |
| Compaq | Computacenter | Computer Products |
| Condor | Consolidated Bearings | Contact |
| Contaminatio | Contelec | Continental Industries |
| Continental Rubber | Convac | Convum |
| Cooke Vac | Coolidge & Kincaid - C&K (ITT Cannon) | Cooper |
| Copley Controls | Corcom | Cornell Dublier |
| Corning | Corteco | Coutant Electronique |
| Cravenmount | Crofton | Crydom |
| Cryo-Twenty | Cti (Helix Technology) | Cumana |
| Cuno | Cuthbertson | Cutler |
| Cutler Hammer | ||
| DMF | DSL | Dage |
| Dainippon Screen (Dns / Dain) | Dale | Danfoss |
| Danotherm | Datacube | Datel |
| Dayton | Dayton Electric Mfg Co | Dec |
| Delph Corp | Delta Electronics In | Deltrol Fluid Products |
| Deltron | Deutsch | Diagnosys |
| Dialco (Dialight) | Dialight Corp.(Dialco) | Dielectric Science |
| Digi Connects | Digital Equipment | Digitec |
| Disco Hi-Tek | Dockweiler | Dold Industries |
| Dupont | Duracell | Durco |
| Dwyer | Dynetic Systems | Dzus Fastener |
| GCA | GCT Technology | GE Lighting |
| Gas Spring Corp | Gasonics | Gates |
| Gazel | Ge Fanuc | Gefran |
| Gelarn Instrument | Gems Sensors | General Denkikogyo |
| General Electric | General Pneumatic | General Semi |
| Genevac | George Fischer +Gf+ | Georgin |
| Gespac | Gilway Technical | Glassman |
| Globe France | Globe Union | Goodfellow |
| Goodyear | Gordos | Gould |
| Grainger W. W. Inc. | Granville Phillips | Graphtec |
| Grayhill | Greene Tweed | Greenpar |
| Griswold Controls | ||
| HEI | HP | HPS Corp. |
| HVA | Haake Roucaire | Hamamatsu |
| Hamlin | Harris Semiconductor | Harris Semiconductor |
| Heathkit | Heidenhain | Heinemann |
| Heirzu | Helical Products Co. | Helix |
| Heraeus | Hereaus | Hettich |
| Hewlett Packard (Hp) | Highland Scientific | Hitachi |
| Hitachi | Hoke | Honeywell |
| Honeywell - Skinner Valve Division | Howard Industries | Hubbell |
| Huber+Suhner | Humphrey | Hunting Hivolt |
| Huttinger | ||
| IBM | IKO | INA |
| IND Devices | ITE Imperial | ITT Jennings |
| ITT Pomona | IVO Industries | Idec |
| Imc Boxer | Imperial Eastman | Imperial Eastman |
| Indramat | Inficon | Infraserv |
| Inmac | Innesto | Innotec |
| Innovative | Instron | Instrument Services |
| Int Power | Integrated Semi | Intel |
| Intercolour | Intermec | International Rectifier |
| Intersil | Intertrade Scientific | Intest Ltd. |
| Invax | Ipec Planar | Isi |
| Itw | Iwaki | |
| KB Electronics | KLA Tencor | KRP |
| Kalrez | Kanematsu Semi | Keithley |
| Kent | Kepco | Kepco-Tdk |
| Kevex | Kingsway Tech College | Klixon |
| Klockner Moeller | Koganei | Komatsu |
| Kontron Electronics | Kooltronic Inc. | Kopex |
| Kraus & Naimer | Kristel Corp | Krohne Corp |
| Kubler | Kuhnke | Kurt J Lesker |
| L'Unite Hermetique | LH Research | LI Components |
| Lam | Lambda | Lascar |
| Laser Drive Inc. | Lauda | Lee Spring Co |
| Lee Spring Co. | Legrand | Legris |
| Leica | Leitz | Lemo |
| Lenze | Leybold | Linear |
| Liteon | Littelfuse Inc. (AKA Littlefuse) | Lucifer |
| Lufran | Lufran Inc | Lutze |
| M.I. Cables | MDC | MK |
| MKS | MRC | MRL |
| MSD Inc. (Struthers Dunn) | MST | Mac |
| Mace | Mack | Macro |
| Macromatic | Magnecraft | Magnetek |
| Malouvis | Mann Filter | Markall Mach |
| Mas France | Massip | Master Appliance |
| Master Electronic | Materials | Matheson |
| Matrix | Matrix Europe | Matroc |
| Matsushuita | Mattson | Mbl |
| Mcgill | Mclennan | Mec Tech Inc |
| Megatech | Megatest | Melec |
| Melles Griot | Merck | Merit |
| Merlin Gerin | Merlin Gerin | Metal Bellows Corp |
| Metalux | Metra | Metro-Line |
| Metron | Metronic | Metyronic |
| Micro Handling Gmbh | Micro Pneumatic | Micro Switch |
| Micromark | Millipore | Minarik |
| Minnesota Rubber | Modutec | Moeller |
| Molex | Mosaid Systems Inc | Motor Guard Corp |
| Motorola | Motorola | Msd |
| Muhlbauer | Muller Feind | Multitest |
| Muvmo | Mykrolis (Millipore) | Myriad |
| OCA Corporation | Ocg Microelectronics | Ohmite |
| Oki | Olin Hunt | Olympus |
| Olyt | Omega | Omron |
| Optibelt | Optical Electrical Ind. | Opto22 |
| Orbis Technology | Orbitec | Oriel France |
| Oriental Motor (Vexta) | Origa | Osram |
| Ove | ||
| P-E Parts List | PBG | PMI |
| PMS Europe | PTC | Pall |
| Panasonic | Panduit | Parker |
| Parker Seal | Particle Measuring Systems Inc | Paulstra |
| Paulstra | Pennine Components | Pepperl + Fuchs |
| Peripheral S | Perkin Elmer | Petercem |
| Pfeiffer | Pfister | Pheonix Semicon Corp |
| Philips | Pic | Pieces Fab |
| Pillar Industry | Pipeline Supplies | Pittman |
| Plade | Plasmatherm | Platon |
| Pomona | Porter Instrument Company | Potter & Brumfield |
| Power General | Power One | Power Sonic |
| Power Sonic | Power Technics | Power Technics |
| Power Technology | Powertec | Ppe |
| Precision Design Services | Precision Dynamics Inc | Precision Technology Supplies |
| Predyne | Price Pump Co | Pro-Tronix |
| Procon Products | Prolabo | Prometrix |
| Proteus Industries | Pulnix | Pulsar |
| Pyrex | Pyromation | |
| Qualidyne | Quality Precision | Quartzfab |
| UCC | US Dynamics | Ulrick Matter |
| Ultratech | Ulvac | Unaxis |
| Unbranded | Unidentified Manufacturer Parts | Unimation |
| Unimax | Uniphase/Cyonics | Unit Instruments |
| United Electric | Unitrode | Unitta |
| Ushio | ||
| VWR | Vacuum General | Vacuum Generators (Vg) |
| Vacuum Technology | Vacuum Technology | Varian |
| Varta | Vat Valve | Vectron |
| Veeco Instruments | Veriflow | Vesuvius Zya |
| Vexta | Victory | Vinyl Glass Ltd |
| Virax | Vishay | Vishay |
| X-Acto | Xycarb Ceramics | Xycom |
| Yellow Spring | Yokahama Kyoritsu Denki | |
| Ziatech | Zilog | Zitel Corp. |
| Zuerrer Motor | Zurrer |
