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.
| Facility | City | What EPA lists |
|---|---|---|
| Kalmus & Assoc. Inc | Broadview | Bare Printed Circuit Board Manufacturing |
| Molex Inc. | Lisle | Electronic Connector Manufacturing |
| Lion Electric Manufacturing USA Inc | Channahon | Other Electronic Component Manufacturing |
| Alpha Circuit Corp | Elmhurst | Bare Printed Circuit Board Manufacturing |
| Avaya Inc | Montgomery | Telephone Apparatus Manufacturing |
| GE Aviation Systems LLC | Loves Park | Printed Circuit Assembly (Electronic Assembly) Manufacturing |
| Kuusakoski US LLC | Peoria | Electromedical and Electrotherapeutic Apparatus Manufacturing |
| Richardson Electronics Ltd | La Fox | Other Electronic Component Manufacturing |
| Aisin Electronics Illinois LLC | Marion | Other Electronic Component Manufacturing |
| American Standard Circuits Inc | West Chicago | Bare Printed Circuit Board Manufacturing |
| Amitron Corp | Elk Grove Village | Bare Printed Circuit Board Manufacturing |
| Basler Electric Co | Highland | Other Electronic Component Manufacturing |
| Circuit Engineering LLC | Elk Grove Village | Bare Printed Circuit Board Manufacturing |
| Dukane Corp | Saint Charles | Other Communications Equipment Manufacturing |
| Eagle Capital Group, LLC. D/B/A Summit Interconnect Chicago | Schaumburg | Bare Printed Circuit Board Manufacturing |
| Elecsys Dcx-Chol | Pekin | Other Electronic Component Manufacturing |
| Electronic Interconnect Inc | Elk Grove Village | Bare Printed Circuit Board Manufacturing |
| Electroplated Metal Solutions | Elk Grove Village | Other Electronic Component Manufacturing |
| Entegris | Aurora | Semiconductor and Related Device Manufacturing |
| Epiworks Inc | Champaign | Semiconductor and Related Device Manufacturing |
| Galaxy Circuits Inc | Carol Stream | Bare Printed Circuit Board Manufacturing |
| General Electric Co | Morrison | Automatic Environmental Control Manufacturing |
| Harting Inc | Elgin | Electronic Connector Manufacturing |
| Henry Pratt Co | Aurora | Automatic Environmental Control Manufacturing |
| Honeywell | Danville | Other Electronic Component Manufacturing |
| Honeywell International Inc | Freeport | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing |
| Honeywell International Inc - Plant 4 | Freeport | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing |
| Ideal Industries Inc | Sycamore | Instrument Manufacturing for Measuring and Testing Electricity |
| Magnetrol International Inc | Aurora | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables |
| Marathon Cutting Die | Wheeling | Bare Printed Circuit Board Manufacturing |
| Mega Circuit Inc | Addison | Bare Printed Circuit Board Manufacturing |
| Milton Industires Inc | Chicago | Other Measuring and Controlling Device Manufacturing |
| Molex Inc | Addison | Electronic Connector Manufacturing |
| Molex Inc | Bolingbrook | Electronic Connector Manufacturing |
| Northrop Grumman Systems Corp | Rolling Meadows | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing |
| Parr Instrument Company Addition And Renovation | Moline | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables |
| Plexus Mfg Solutions - Chicago | Buffalo Grove | Printed Circuit Assembly (Electronic Assembly) Manufacturing |
| Renishaw Inc | West Dundee | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables |
| Robertson Transformer Co. | Blue Island | Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing |
| Senju Comtek Corp | Mundelein | Other 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.