Abracon   Abracon (incl Fox Electronics), active
ACT   Actel (fabs MAT, Chartered Semi, WIN, TI) 1985-, MSE 2010 11
AD   Analog Devices Inc, active
Adafruit   Adafruit, New York NY (US), active
ADAM   Adam Tech, New Taipei City (TW), active
ADS   a/d/s/ (JP), inactive
AEG   AEG 1883-1982, inactive
AGE   Agere Systems, LSI Logic
AGI   Agilent Technologies, AVA
AI   Alpha Industries Inc, SKY 2002 with part of CON
Aimtec   Aimtec (CA), active
Airpax   Airpax / Sensata Technologies
AKC   Asahi Kasei Corp. (JP), active
Alder   Alder Optomechanical Corp., Hsinchu (TW), active
ALG   Allegro MicroSystems Inc., Manchester NH (US), 1990-, active
ALL   Alliance Semiconductor Corp , Santa Clara CA (US) 1985-2006, Alliance Memory active (only legacy memory)
ALO   Analogic Corporation, Peabody MA (US), active
ALPS   Alps Electric Co., Ltd. (JP), active
ALT   Altera, INT 2015 12
AMD   Advanced Micro Devices, active
AMI   AMI Semiconductor, ONS 2007 12
AMIC   AMIC Technology (TW), active
AMP   Ampere Inc., Tokyo (JP) 1971-, active
Amphenol   Amphenol (incl. Piher Spain, Tuchel, FCI), active
AMS   Advanced Monolithic Systems Inc., Livermore CA (US), active
ANAD   Anadigics, Inc., GAL 2015 11
APT   Advanced Power Technology, MSE 2006 4
APX   Apex Microtechnology, CIR 2007
Arcotronics   Arcotronics, Kemet 2007
Assmann   ASSMANN WSW components GmbH, Lüdenscheid (DE), active
AST   Aster, inactive
Astec   Astec / Artesyn Power GmbH / ETASYN GmbH, active
ATM   Atmel, MCH 2016 1
ATS   Advanced Thermal Solutions, Inc., Norwood MA (US), active
ATT   AT&T Microelectronics (US), Lucent 1996, AGE
Aucon   Aucon, inactive
Augat   Augat Inc., T&B 1996, TYC 2000
AUO   AU Optronics, Benq Group, Hsinchu (TW), active
AVA   Avago (after merger Avago, a Broadcom company), BRO
AVAT   Avalanche Technology, Fremont CA (US), active
AVX   AVX, KYO 1990, active
Axon   AXON CABLE S.A.S., Montmirail (FR), active
BB   Burr-Brown, TI 2000
BCC   BC Components, VIS 2002
Belden   Belden, Inc., St. Louis MO (US), active
Bestar   BeStar Technologies, Changzhou (CN), active
Blaupunkt   Blaupunkt (Bosch Group) 1923-, active
Block   BLOCK Transformatoren-Elektronik GmbH, Verden (DE) 1939-, active
BOS   Bosch, active
Bourns   Bourns, active
BRO   Broadcom, AVA 2015, active
BTR   Brooktree (fabs Chartered Semi, EPS, TSMC) 1981-, ROC 1996
CalTest   Cal Test Electronics, Yorba Linda CA (US), active
Cambion   Cambion Electronics, Castleton (GB), active
CAT   Catalyst Semiconductor, ONS 2009 8
CC    
CCR   Coilcraft, Cary IL (US) 1945-, active
CCT   Crystal Clear Technology Sdn Bhd,, Subang (MY), active
CDE   Cornell Dubilier Electronics, Inc. (US) 1909-, active
CDIL   Continental Device India Ltd. (IN), active
CDT   Power Convertibles / C&D Technologies, MUR (only DC/DC)
CE    
CEN   Central Semiconductor, Hauppauge NY (US), active
Chinfa   Chinfa Electronics Ind. Co., Ltd., Taipei (TW), active
ChinNan   Chin Nan Precision Electronics Co., Ltd., Tainan (TW), active
Cincon   Cincon Electronics Co., Ltd., Taipei (TW), active
CIR   Cirrus Logic Inc,. Austin TX (US), active
CITI   Citizen Finedevice Co., Ltd, incl Citizen Electronics, Fujikawaguchikomachi (JP), active
Classic   Classic Service Parts GmbH, Koenig
CMD   California Micro Device Corp., ONS 2010 3
CMO   Chimei Innolux Corporation, Zhunan (TW), active
CnCT   CnC Tech, LLC, Chandler AZ (US), active
Cogema   Cogema srl, Merone CO (IT), active
COM   COM Remote Controls
CON   Conexant Systems Inc., Synaptics 2017 7
CP   Computer Products, Artesyn 1997 with Zytec
CPC   CP Clare, GI 1967, IXS 2002 6
CPS   Chips & Technologies, INT 1998
CRD   Crydom Inc. / Sensata Technologies, active
CRY   Crystal Semiconductor, CIR
CSI   Cherry Semiconductor, ONS 2000 4
CTI   Crystal Technology, Inc., inactive
CTS   CTS Corporation, Lisle IL (US) 1896-, active
CYE   Changshu Yinyang Electronics Co., Ltd. (CN), active
CYP   Cypress Semiconductor, INF 2019
DAE   Daewoo (ROC), active
DAL   Dallas Semiconductor, MAX 2001
Darfon   Darfon Electronics Corp., Benq Group, Taoyuan (TW) 1997-, active
DAT   Datel, MUR Power Solutions 2007 8
DBUNL   DB Unlimited, LLC, Dayton OH (US), active
DDD   Data Delay Devices Inc., Clifton NJ (US) 1964-, active
Delta   Delta Products Corp., Fremont (US), active
DFRobot   DFRobot, Chengdu (CN), active
DIAL   Dialight, Farmingdale NJ (US), active
DII   Diodes Inc., active
DIO   Diotec Semiconductor AG, Heitersheim (DE), active
DIT   Displaytech Ltd. (HK), active
DLA   Lambda GmbH, 2004, Densei Lambda 2006, TDK-Lambda 2008, active
DSI   Discrete Semiconductor Industries, Geretsried (DE), active
EA   ELECTRONIC ASSEMBLY GmbH, Gilching (DE), active
EAI   Electronic Arrays, Inc., NEC 1978
Eaton   Eaton (incl Cooper Power Systems, Cooper Electronic Technologies, Cannon), active
EIC   Electronics Industry Company (EIC), Bangkok (TH) 1984-
ELA   Elantec, ITS 2002
Eldor   Eldor Corporation, Orsenigo (IT) 1972-, active
ELP   Elpida (JP) 1999-, MTE 2013 7
EMC   EMC Technology / Smiths Interconnect (incl Kaelus, Radio Waves, TECOM, TRAK, LORCH, TRAK Limited, Millitech), active
Epcos   Epcos AG (including Siemens Matsushita Components), TDK 2010
EPS   Seiko Epson (JP), active
Erdiba   Erdiba Service Parts (ESP) / Erdiba AG, Sirnach (CH) 1996-2011, inactive
ERG   Endicott Research Group, Inc., Endicott NY (US), active
ERI   Ericsson Components AB (SE), NJR 1999 (only industrial IC), active
Erni   ERNI Electronics GmbH & Co. KG 1956-, TE 2021
ERO   (Ernst) Roederstein GmbH 1958-1993, VIS 1993
ESP   Espressif Systems, (CN), active
ETEC   E-tec Interconnect AG, Lengnau (CH), active
ETR   EtronTechnology, Inc. (TW) 1991-, active
Ettinger   Ettinger GmbH, Brunnthal (DE), active
EUR   Eurosil (ex Diehl Uhren ICs), TEM
EVL   Everlight Electronics Co., Ltd. (TW) 1983-, active
EXC   Excel Semiconductor Co. Ltd., Suzhou (CN), active
EXL   Exel Microelectronics, EXR, ROH
EXR   Exar Corporation 1971-2017, MaxLinear 2017 5
FAB   Fabrimex AG / Exista AG, Bubikon (CH), active
FAG   Fagor Electrónica, Mondragon (ES), Insolvenz 2013 11
Falcom   FALCOM GmbH, Langewiesen (DE), active
FAST   Fastron GmbH, Piusheim (DE), active
FCI   FCI Connectors, Amphenol 2016
FEC   Fuji Electric Corporation (JP) 1923-, active
FER   Ferranti (UK) 1885-1994, GEC 1994
FEVSE   Funai (FUNAI ELECTRIC-VIDEO SERVO SYSTEM), inactive
FRE   Freescale Semiconductor (US) 2004-2015, NXP 2015 12
FSC   Fairchild Semiconductor 1957-, ONS 2016 9
FUJ   Fujitsu (including Takamisawa 1996), active
GAL   GaAs Labs LLC (incl Sirenza, Mimix, Macom, Nitronex, Mission), active
GD   GigaDevice Semiconductor, (CN), active
GDE   Gestión de Desarrollos Electrónicos, S.A. (ES) 1984-, active
GDS   Goldstar (ROC) 1956-1995, LGE 1995
GE   General Electric, active
GI   General Instruments, MCH 1989, GS 1997
GIG   GIGA A/S, Copenhagen (DK) 1988-2000, INT 2000
GL   G-Link Technology, Hsinchu (TW), active
Goodark   Good-ark Semiconductor, Ronkonkoma NY (US), active
Grayhill   Grayhill, Inc., La Grange IL (US), active
GREEN   GREEN, inactive
Grundig   Grundig 1930-2003, inactive
GS   General Semiconductor, VIS 2001 11
GTE   GTE Microcircuits, Tempe AZ (US), CMD 1987
Hahn   HAHN GmbH & Co. KG, Hungen (DE), active
Halo   Halo Electronics, Santa Clara CA (US), active
Hamlin   Hamlin 1949-2013, LIF 2013
HAR   Harris Semiconductor, ITS 1999
HARV   Harvatek Corporation (TW), 1995-
HFO   Halbleiterwerk Frankfurt/Oder, inactive
HIT   Hitachi incl. Kaohsiung Hitachi Electronics Co., Ltd., REN
HON   Honeywell (Saia Burgess), active
HPC   Hewlett-Packard Components (incl Avantek 1991), AGI, AVA
HQ   HQ Elektronika Kereskedelmi és Szolgáltató Kft. (HU), active
HR   HR Diemen (ES), active
HRS   Hirose Electric Co., Ltd. (JP), active
HSE   REMO-HSE Hochspannungselektronik GmbH, Rattiszell (DE)
HSM   Hi-Sincerity Microelectronics Corp. (TW), active
HTT   Hittite Microwave Corporation 1985-, AD 2014
HYN   SK Hynix / Hynix Semiconductor (ROC), active
HYU   Hyundai (ROC) 1983-1999, LGE 1999, HYN 2001
IAM   hybrid
ICH   iC-Haus GmbH, Bodenheim (DE), active
ICI   Integrated Circuit Solution, Inc. (TW), ISSI 2005
ICS   Integrated Circuit Systems, Inc., IDT 2005 6
IDT   Integrated Device Technology 1980-, REN 2019 3
INCT   Shengzhen Income Technology Co. Ltd., Shenzhen (CN), active
INF   Infineon Technologies AG, Neubiberg (DE), active
INT   Intel, active
Integreight   Integreight, Giza (EG), inactive
IR   International Recifier, INF 2014
ISC   Inchange Semiconductor Co., Ltd (CN), active
ISSI   Integrated Silicon Solutions Inc. (US), active
ITS   Intersil 1967-, HAR 1988, Intersil 1999-, REN 2017 2
ITT   ITT Intermetall, MCR 1997
ITT/Nokia   ITT/Nokia, inactive
IXS   Ixys Semiconductor 1983-, LIF 2018
Jauch   Jauch Quartz GmbH, Villingen-Schwenningen (DE) 1954-, active
JET   Jetkey Keyboard BIOS, inactive
Jumo   JUMO GmbH & Co. KG, Fulda (DE), active
JVC   Japan Victor Corp. (JP) 1923-, active
KBR   Kingbright (TW) 1980-, active
Kemet   Kemet, YAG 2020 6
KIA   Kia Semiconductor (CN), active
KOA   KOA Speer Electronics, Inc., Bradford PA (US), active
Koenig   König Electronic GmbH, Reichelsheim (DE), active
KRP   KRP Power Source (UK), active
KYO   Kyocera (JP), active
LAT   Lattice (fabs EPS, UMC), active
LEG   Legerity/Lucent, ZAR
Lelon   Lelon Electronics Corp., Taichung (TW) 1976-, active
LEM   LEM Holding, Fribourg (CH), active
LG   LG Electronics (ROC) 1958-, active
LIF   Littelfuse (including Wickmann, C&K Switches), active
LIN   Linfinity, MSE
LIO   Lite-On Technology Corporation, Taipeh (TW), active
LIP   Lineage Power, GE 2011 1
Loewe   Loewe 1923-2013, inactive
LT   Linear Technology, AD 2017 6
LTX   Litronix, SIE 1977
Lumex   ITW Lumex, Carol Stream IL (US), active
LVO   Level-One, INT
LXD   LXD Inc., Cleveland OH (US), active
MAC   M/A-Com, TYC, HAR 2009
MAR   Marvell Technology Group (US) 1995-, active
Marquardt   Marquardt 1925-, active
MAT   Matsushita Electric (JP), active
MAX   Maxim, AD 2021 8
MCH   Microchip, active
MCI   Mini-Circuits (US), active
MCR   Micronas, Freiburg (DE), TDK 2016
MeanWell   MEAN WELL Enterprises Co., Ltd. (TW) 1982-, active
MEC   Mercury Electronic Industrial Co. Ltd (TW), active
MEG   MEG Transformatorenbau GmbH Waldau (DE) -2007, inactive
Metz   Metz 1938-2014, inactive
MEV   Mikroelektronikai Vállalat (HU) 1982-86, inactive
MHS   Matra Harris, ATM
MIC   Micrel, MCH 2015 5
MICROE   MIKROELEKTRONIKA DOO BEOGRAD (RS), active
MIM   Mitsumi Electric Co., Ltd (JP) 1956-, active
Misumi   Misumi Electronic Corporation (TW) 1982-, active
MIT   Mitsubishi Semiconductor (JP), REN 2003 only ICs excl DRAM
ML   Micro Linear Corp, SIR 2006
MME   VEB Mikroelektronik „Karl Marx“ Erfurt, inactive
MMI   Monolithic Microdevices Inc, AMD 1987
MNX   Macronix (TW), active
Molex   Molex, active
MOS   MOS Technology 1969-76, Commodore 1976 9
MOT   Motorola Semiconductor, ONS 1999, FRE 2004
MOV   Mosel Vitelic (TW) 1985-2009, inactive
MPS   Monolithic Power Systems, Inc, San Jose (US), active
MSC   MSC, Stutensee (DE), inactive
MSE   Microsemi, MCH 2018 5
MTE   Micron Technology Inc., active
MTK   Mostek, UTC 1979, Thomson 1985
MTL   Mitel, ZAR 2001
MUL   Mullard, PHI 1927
MUR   Murata (JP), active
MUS   Music Semiconductor 1992-2002, MTE 2002
NCC   Nippon Chemi-Con (JP), active
NDK   Nihon Denpa Kogyo (JP), active
NEC   Nippon Electric Corp (JP), active
NECTokin   NEC Tokin Corporation, Shiroishi (JP), Kemet 2017 4
Neosid   Neosid Pemetzrieder GmbH & Co. KG 1933-, active
NEX   Nex Flash, WIN 2005 6
NEXP   Nexperia, Nijmegen (NL), active
NIC   NIC Components Corp (US), active
NIN   Nichicon Corporation (JP), active
NJR   New Japan Radio Corp (JP), active
Nordmende   Nordmende 1923-1977, Thomson 1977
NPC   Nippon Precision Circuits / Seiko NPC Corporation, active
NSC   National Semiconductor Corp, TI 2011 9
NUV   Nuvoton Technology, Hsinchu (TW), spin-off WIN 2008-, active
NVE   NVE Corporation, Eden Prairie MN (US) 1989-, active
NXP   NXP (discretes to NEXP), active
OKI   Oki Semiconductor Co., Ltd. (JP), ROH 2008 (from 2011 as Lapis Semi)
Omron   Omron (JP) 1933-, active
ONS   On Semiconductor, active
OPT   Optek Technology, TTE
Orega   Orega, Electronique Et Mecanique, Courbevoie (FR), inactive
ORI   Orion (JP), inactive
OSR   Osram Opto Semiconductors GmbH, active
OST   On-Shore Technology, Inc., Tempe AZ (US), active
PAN   Panasonic (JP), active
PARA   Tinkerly GmbH, Berlin (DE), active
PER   Pericom Semiconductor Corp. (fabs AMS, Chartered Semi, NJR), DII 2015 11
PGR   Peregrine Semiconductor (fab AKM) 1988-, MUR 2014 (fabs Magnachip, Lapis)
PHI   Philips Semiconductors, NXP 2006
Phoenix   PHOENIX CONTACT Deutschland GmbH, Blomberg (DE), active
PIN   Power Integrations (fabs ATT, PAN, OKI), active
PIO   Pioneer Corporation (JP), active
PIS   Pi Supply (Nebra Ltd), Bells Yew Green (GB), active
PLE   Plessey Semiconductors, Cheney Manor / Roborough (UK), MTL 1998
PLX   PLX Technology, AVA
PMC   PMC Components Pte Ltd Singapore, active
PMI   Precision Monolithics, Inc., Santa Clara CA (US) 1969-1990, Bourns, AD 1990 08
PMS   PMC Sierra, MSE 2015
PON   Power-One (US), ABB, BelPower 2014 4
POP   Power Products / Computer Products, inactive
PRF   Performance Semiconductor, PYR 2003
PRO   Protek Devices, Tempe AZ (US), active
ProStar   Pro Star Component Products Co., Ltd. (TW), active
PSI   Paradise Systems Inc, inactive
PTI   Powertip Technology Corporation (TW) 1991-, active
PULSE   Pulse Electronics (US), YAG 2018
PYR   Pyramid Semiconductor, Sunnyvale CA (US), active
QLC   Qualcomm, active
QRVO   Qorvo, Greensboro NC (US) 2015-, active
QTB   QT Brightek Corp., Milpitas CA (US), active
QTC   Quality Tech, FSC
Quectel   Quectel Wireless Solutions Co., Ltd. (CN), active
Rafi   Rafi GmbH & Co. KG, Berg (DE) 1900-, active
RAM   Ramtron (fabs FUJ, TI, IBM/Nippon Steel Semiconductor for DRAM, ROH), CYP 2015 8
RAY   Raytheon, FSC 1997
RCA   Radio Corp of America, inactive
REC   Recom Power GmbH, Gmunden (AT) 1974-, active
REI   R&E International, Inc., MCH 2009 03
REN   Renesas (JP) 2010-, active
RFM   RF Micro Devices Inc (RFMD), QRVO 2015 with TriQuint
RFP   RF Prime Corporation, inactive
RFT   Radio Funkwerke, inactive
RLT   Realtek (TW), active
ROC   Rockwell, CON 1998
Rocktech   Rocktech Displays Ltd., Shenzhen (CN), active
ROH   Rohm (JP), active
RUS   all Russian MFR
Saba   SABA (Schwarzwälder Apparate-Bau-Anstalt August Schwer Söhne GmbH) 1923-1980, inactive
SAK   Sanken Electric Co. Ltd. (JP), active
Salcomp   Salcomp Oyj, Salo (FI), 1975-, shareholder Nokia, active
SAM   Samsung (ROC), active
SameSky   SameSky, former CUI Devices, Lake Oswego OR (US), active
Sampo   Sampo Corporation, Taoyuan (TW), active
Samtec   Samtec (US), active
Samwha   Samwha (ROC), active
SAN   Sanyo Semiconductor (JP), ONS 2011 1
SanHua   SanHua Holding Group (CN), active
SCE   Scenix Semiconductor 1996-, Ubicom 2000 11, QLC 2012 3
Schneider   Schneider Technologies AG, Türkheim (DE), 1859-2002
SchneiderEl   Schneider Electric SE (FR), active
Schrack   Schrack AG (AT) 1920-, active
Schurter   Schurter, Luzern (CH), active
SCI   SCI Parts (TW), active
SCPI   S.C. Precision Industrial Co., Ltd., New Taipei City (TW), active
SDG   Shindengen (JP), active
Seagate   Seagate Microelectronics Limited, Livingstone (UK), inactive
Seeed   Seeed (Studio) Technology, Shenzhen (CN), active
SEI   Seiko Instruments (JP), active
SEM   Semikron Danfoss Elektronik GmbH & Co. KG, Nürnberg (DE), active
SES   Sesco, SGS
SGE   Silicon General Ltd., Leatherhead (UK), LIN
SGS   SGS Thomson, STM
SHA   Sharp Corp. (JP), active
ShekouJewel   Shekou Jewel Electronic Company, Ltd. (CN), active
Siba   SIBA GmbH, Lünen (DE), active
SIE   Siemens, INF (semiconductor only)
SIG   Signetics, PHI 1975/91
SIL   Siliconix, VIS 1998 2005
SIR   Sirenza Microdevices, RFM 2007 10
SKY   Skyworks Solutions, Inc., active
SMA   Smartec B.V., Breda (NL), active
SMC   SMC Networks, Inc., Irvine CA (US), active
SMSC   Standard Microsystems Corporation, MCH 2012 8
SMT   Semtech Corporation (US), active
SON   Sony / Sony Semiconductor (JP), active
Soshin   Soshin Electric Co., Ltd. (JP), active
SPAN   Spansion, CYP 2014 12
SPR   Sprague, VIS
SPT   Signal Processing Technologies (fab Toko) 1983-, FSC 2002
SPX   Sipex, EXR 2007
SSM   Susumu CO., LTD, Kyoto (JP), active
SST   Silicon Storage Technology, Inc. (UK), MCH 2010 1
STA   Stanford Telecom, INT 1999
STM   ST Microelectronics, active
SUMI   Sumitomo Electric Industries Ltd (JP) 1897- incl. SEI INTERCONNECT PRODUCTS (EUROPE) LTD.
Syko   SYKO Gesellschaft für Leistungselektronik mbH 1973-, active
SYN   Synertek 1973-1985, HON 1979
TAG   Transistor AG, Zürich (CH), inactive
TAM   Tamura Corporation (JP), active
TDK   Tokyo Denki Kagaku (JP), active
TDY   Teledyne, active
Teapo   Teapo Luxon (TW), active
TEC   Teccor, LIF
TEL   Telcom Semiconductor (fab IC Works), MCH 2000 10
TEM   Temic, ATM
TENS   Tensility International Corp., Redmond OR (US), active
Tensai   Tensai International AG (CH) 1980-2023, inactive
Termal   Termal Elektronik (TR), active
TES   Tesla, Praha (CZ), active
TEWA   Fabryka Półprzewodników Tewa (PL) 1958-1970, inactive
TFK   Telefunken, TEM
Thomson   Thomson Semiconducteurs (FR), SGS
TI   Texas Instruments (US), active
Tianma   TIANMA Microelectronics Co., Ltd. (CN) 1983-, active, including NLT
TOS   Toshiba (JP), active
TOY   Toyo LED Electronics Ltd. (HKG), active
TQG   Tele Quarz Group (Bernd Neubig), AXTAL GmbH & Co. KG 2003
TRA   Transitron Electronic Corp. (US, David and Leo Bakalar) 1952-1977, Holding -1986, inactive
Traco   TRACO Electronic AG, Baar (CH), active
TRI   Trident Microsystems 1987-2012
Tristar   TriStar Electronics Corp. (US) 1957-, active
TSC   Taiwan Semiconductor Co. LTD, active
TSL   TSL Flyback Transformer
TTE   TT Electronics (Welwyn, IRC, BI technologies), active
TUR   Turbo IC, Inc, San Jose CA (US), inactive
TXC   TXC Corporation, Taoyuan (TW), active
TYC   Tyco (TE Connectivity, incl Raychem), active
TYU   Taiyo Yuden Co., Ltd. (JP), active
UMA   UMA electronic productions GmbH, Tegernheim (DE), active
UMC   United Microelectronics Corp., Hsinchu (TW) 1980-, active
UMEC   Universal Microelectronics Co., Ltd. ,Taichung (TW), active
UNI   Unitrode, Merrimack NH (US) 1960-, TI 1999
UNITRA   Unitra, inactive
Universum   Universum
UTC   Unisonic Technologies Co., Ltd. (TW), active
VAL   Valvo (Philips Unternehmensbereich Bauelemente) 1924-1989, PHI 1989
VAN   Vanguard International Semiconductor (TW) 1994-, active
VAT   Vantis, AMD, LAT 1999
Videoton   Videoton Holding (HU) 1938-, active
VIS   Vishay (incl Dale, Draloric), active
Vision   Vision Video Heads (JP), inactive
VIT   Vitesse, MSE 2015 6
Vivanco   Vivanco Gruppe AG 1920-, seit 2011 Hauptaktionär Xupu Electronics Technology GmbH, active
Vogt   Vogt, seit 2009 Hauptaktionär Sumida, active
VOT   Votrax,Troy MI (US), inactive
VTM   Vitrohm, Pinneberg (DE), YAG 1996
W+P   W+P PRODUCTS GmbH, Bünde (DE), active
Wago   WAGO Kontakttechnik GmbH (nach Schweizer Recht) & Co. KG, Minden (DE), active
WEC   Wing Shing Electronics Co. (CN), active
Weitronic   Weitronic Enterprise Co., Ltd., New Taipei City (TW), active
Wima   WIMA Wilhelm Westermann GmbH & Co. KG 1948-, active
WIN   Winbond Electronics Corporation (TW) 1987-, active
WOL   Wolfson Microelectronics plc (UK) 1984-, CIR 2014 8
WSI   Waferscale Integration (fabs SHA, NSC, AMD, AMI), STM 2000 9
Wuerth   Würth Elektronik eiSos GmbH & Co. KG 1971-, active
XIC   Xicor, ITS 2004 3
XIL   Xilinx (fabs EPS, YAM, IC Works), AMD 2022 2
YAG   Yageo Corporation (TW), active
YAM   Yamaha (Kagoshima Semiconductor), 1987-, active, subcontracted to Phenitec Semiconductor 2015 10
ZAR   Zarlink, MSE 2011 10
ZF   ZF Friedrichshafen AG, Friedrichshafen (DE), active
ZIL   Zilog, Exxon 1980, IXS 2010 3
ZMD   Zentrum für Mikroelektronik Dresden, IDT 2015 12
ZTX   Zetex, DII 2008