US Factory Map

Electronics manufacturers in Illinois

Illinois has 204 electronics makers in EPA records, facilities that list codes for computers, communications gear, components and instruments. The most are in Elk Grove Village, Aurora and Addison. That is 3% of the 6,529 such facilities nationwide, and Illinois ranks #6 of 49 states.

Product
Electronics manufacturers
Facilities
204
State rank
#6
NAICS
334111 and 21 related codes
Revised
November 1, 2026

Facilities in Illinois

These are active facilities in EPA's ECHO database that list a code for computers, communications gear, components and instruments. The 40 shown first are the ones with the most EPA program records, which usually means the larger sites.

FacilityCityWhat EPA lists
Kalmus & Assoc. IncBroadviewBare Printed Circuit Board Manufacturing
Molex Inc.LisleElectronic Connector Manufacturing
Lion Electric Manufacturing USA IncChannahonOther Electronic Component Manufacturing
Alpha Circuit CorpElmhurstBare Printed Circuit Board Manufacturing
Avaya IncMontgomeryTelephone Apparatus Manufacturing
GE Aviation Systems LLCLoves ParkPrinted Circuit Assembly (Electronic Assembly) Manufacturing
Kuusakoski US LLCPeoriaElectromedical and Electrotherapeutic Apparatus Manufacturing
Richardson Electronics LtdLa FoxOther Electronic Component Manufacturing
Aisin Electronics Illinois LLCMarionOther Electronic Component Manufacturing
American Standard Circuits IncWest ChicagoBare Printed Circuit Board Manufacturing
Amitron CorpElk Grove VillageBare Printed Circuit Board Manufacturing
Basler Electric CoHighlandOther Electronic Component Manufacturing
Circuit Engineering LLCElk Grove VillageBare Printed Circuit Board Manufacturing
Dukane CorpSaint CharlesOther Communications Equipment Manufacturing
Eagle Capital Group, LLC. D/B/A Summit Interconnect ChicagoSchaumburgBare Printed Circuit Board Manufacturing
Elecsys Dcx-CholPekinOther Electronic Component Manufacturing
Electronic Interconnect IncElk Grove VillageBare Printed Circuit Board Manufacturing
Electroplated Metal SolutionsElk Grove VillageOther Electronic Component Manufacturing
EntegrisAuroraSemiconductor and Related Device Manufacturing
Epiworks IncChampaignSemiconductor and Related Device Manufacturing
Galaxy Circuits IncCarol StreamBare Printed Circuit Board Manufacturing
General Electric CoMorrisonAutomatic Environmental Control Manufacturing
Harting IncElginElectronic Connector Manufacturing
Henry Pratt CoAuroraAutomatic Environmental Control Manufacturing
HoneywellDanvilleOther Electronic Component Manufacturing
Honeywell International IncFreeportRadio and Television Broadcasting and Wireless Communications Equipment Manufacturing
Honeywell International Inc - Plant 4FreeportRadio and Television Broadcasting and Wireless Communications Equipment Manufacturing
Ideal Industries IncSycamoreInstrument Manufacturing for Measuring and Testing Electricity
Magnetrol International IncAuroraInstruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
Marathon Cutting DieWheelingBare Printed Circuit Board Manufacturing
Mega Circuit IncAddisonBare Printed Circuit Board Manufacturing
Milton Industires IncChicagoOther Measuring and Controlling Device Manufacturing
Molex IncAddisonElectronic Connector Manufacturing
Molex IncBolingbrookElectronic Connector Manufacturing
Northrop Grumman Systems CorpRolling MeadowsRadio and Television Broadcasting and Wireless Communications Equipment Manufacturing
Parr Instrument Company Addition And RenovationMolineInstruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
Plexus Mfg Solutions - ChicagoBuffalo GrovePrinted Circuit Assembly (Electronic Assembly) Manufacturing
Renishaw IncWest DundeeInstruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
Robertson Transformer Co.Blue IslandCapacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing
Senju Comtek CorpMundeleinOther Electronic Component Manufacturing

Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.

Where they are

  • Elk Grove Village: 13
  • Aurora: 8
  • Addison: 8
  • Chicago: 7
  • Elgin: 5
  • Wheeling: 5

By product code

  • Bare Printed Circuit Board Manufacturing (NAICS 334412): 10 of those shown
  • Other Electronic Component Manufacturing (NAICS 334419): 8 of those shown
  • Electronic Connector Manufacturing (NAICS 334417): 4 of those shown
  • Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing (NAICS 334220): 3 of those shown
  • Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (NAICS 334513): 3 of those shown
  • Semiconductor and Related Device Manufacturing (NAICS 334413): 2 of those shown
  • Printed Circuit Assembly (Electronic Assembly) Manufacturing (NAICS 334418): 2 of those shown
  • Automatic Environmental Control Manufacturing (NAICS 334512): 2 of those shown
  • Telephone Apparatus Manufacturing (NAICS 334210): 1 of those shown
  • Other Communications Equipment Manufacturing (NAICS 334290): 1 of those shown
  • Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (NAICS 334416): 1 of those shown
  • Electromedical and Electrotherapeutic Apparatus Manufacturing (NAICS 334510): 1 of those shown
  • Instrument Manufacturing for Measuring and Testing Electricity (NAICS 334515): 1 of those shown
  • Other Measuring and Controlling Device Manufacturing (NAICS 334519): 1 of those shown

All computers and electronics manufacturing in Illinois: 197 facilities and Census job counts.