Top 62 Electrical Component Manufacturers in Wisconsin 2026
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FirmsLedger lists 62 electrical component manufacturers headquartered in Wisconsin. That ranks 7th among the 50 states with listings, behind California (178), Texas (96) and 4 other states. The largest clusters are in Milwaukee (7), Brookfield (4), Madison (4) and Waukesha (4), and the other 43 are in 38 more cities. Milwaukee listings include Curtis Industries, Excel Connection, Marsh Electronics and 4 others.
By specialty, Wisconsin has electrical wire & cable (21), solar panels (14), wiring harness (2) and switchgear (2) listings.
| Company | City | Specialty | Phone | Website |
|---|---|---|---|---|
| BOH Electronics | River Falls | Design Assistance and Prototyping | (715) 381-1468 | bohelectronics.com |
| Badger Wire | Waukesha | Wire extrusion | (262) 446-5500 | badgerwire.com |
| Curtis Industries | Milwaukee | Custom electrical component design | (414) 649-4200 | curtisind.com |
| Custom Wire Industries | Muskego | Cable fabrication | (262) 679-9700 | customwireind.com |
| Electronic Technologies International, Inc. | Fort Atkinson | Printed Circuit Board Assembly (surface mount, through-hole, mixed technology) | (920) 563-0840 | etimfg.com |
| Excel Connection | Milwaukee | Cable assembly | (414) 769-9080 | excelconn.com |
| Generac Power Systems | Waukesha | Standby generator manufacturing | (461) 325-9741 | generac.com |
| Heale Manufacturing Co | Waukesha | Wire harness manufacturing | (262) 542-4496 | healemfg.com |
| Industrial Electronics By Ross | West Allis | Franchised distribution of electronic components | (414) 327-1555 | industrialelectronics.biz |
| Integrity Wire EDM | Sussex | Wire EDM | (262) 820-3400 | integritywireedm.com |
All Electrical Equipment & Components in Wisconsin
BOH Electronics
River Falls, Wisconsin
BOH Electronics, a custom cable and wire harness manufacturer, is headquartered in River Falls, Wisconsin. After rapid growth, the operation moved to a 6,000-square-foot facility in 2006 and then to a 17,000-square-foot historic building in North Hudson in 2009, which underwent a certified historic rehabilitation completed in 2010.
Badger Wire
Waukesha, Wisconsin
Badger Wire, Inc. was founded in 1989 in Waukesha, Wisconsin, to extrude large gauge wire.
Curtis Industries
Milwaukee, Wisconsin
Curtis Industries, based in Milwaukee, Wisconsin, traces its roots to 1933 when it began as a manufacturer of electrical components. The company produces a broad line of standard and custom electrical components, including barrier and PCB terminal blocks, EMI/RFI power line filters, TRI-MAG power supplies, and custom molded assemblies.
Electronic Technologies International, Inc.
Fort Atkinson, Wisconsin
Electronic Technologies International, Inc. (ETI) operates from Fort Atkinson, Wisconsin, where it was founded in 1958.
Generac Power Systems
Waukesha, Wisconsin
Generac Power Systems was founded in 1959 in Waukesha, Wisconsin. The company began by engineering the first affordable home standby generators and developing an engine purpose-built for generator use.
Industrial Electronics By Ross
West Allis, Wisconsin
Industrial Electronics By Ross LLC operates from West Allis, Wisconsin, where it was founded in 1927 as a supplier of tubes and radio parts. The company is a woman-owned small business and functions as an employee-managed organization, with 99 percent of sales decisions made at the first level.
Integrity Wire EDM
Sussex, Wisconsin
Integrity Wire EDM, Inc. was established in 1997 in Sussex, Wisconsin.
- Marsh Electronics, Inc.Milwaukee, Wisconsin
- Milwaukee ElectronicsMilwaukee, Wisconsin
- Precision Cable Assemblies Inc. (PCA)Brookfield, Wisconsin
- Surface Mount Technology Corp.Appleton, Wisconsin
- Synergy Renewable Systems, LLCStoughton, Wisconsin
- TouchPad Electronics LLCMukwonago, Wisconsin
- Wald Wire & Manufacturing CoOshkosh, Wisconsin
- Wells Vehicle ElectronicsFond du Lac, Wisconsin
- American Cable & Electronics, incMenomonee Falls, Wisconsin
- Bristol ElectronicsTrevor, Wisconsin
- Drews SolarMadison, Wisconsin
- Electronic Specialties IncGenoa City, Wisconsin
- Endries Solar And ElectricOostburg, Wisconsin
- Home Team Energy CompanyBrookfield, Wisconsin
- Madison Mobile Solar, LLCFitchburg, Wisconsin
- Mectronx CorpOconomowoc, Wisconsin
- Midwest Solar PowerMadison, Wisconsin
- Midwest SolarsMondovi, Wisconsin
- Midwest Wire Products Inc.Sturgeon Bay, Wisconsin
- Northern WireMerrill, Wisconsin
- Northwind SolarAmherst, Wisconsin
- PEC Solar CompanyRio, Wisconsin
- Wisconsin Wire Works, Inc.Wales, Wisconsin
- Cable Components IncSussex, Wisconsin
- Central Cable Contractors IncWaupun, Wisconsin
- Charter WireMilwaukee, Wisconsin
- ClariosGlendale, Wisconsin
- Cross Country CableMonona, Wisconsin
- Custom Wire technologies, Inc.Port Washington, Wisconsin
- Electronic Components-Services IncFox Lake, Wisconsin
- Electronic Industries IncOshkosh, Wisconsin
- ITW Appliance ComponentsNew Berlin, Wisconsin
- Olson Solar EnergyOnalaska, Wisconsin
- Quick Cable CorporationFranksville, Wisconsin
- Regal RexnordMilwaukee, Wisconsin
- Rhino Wire Works, LLCDelavan, Wisconsin
- SunPeakMadison, Wisconsin
- Synergy Industrial CorporationBrookfield, Wisconsin
- Wire Specialists IncBrookfield, Wisconsin
- Full Spectrum SolarMadison, Wisconsin
- Rockwell AutomationMilwaukee, Wisconsin
- GIGAFLIGHT Connectivity, Inc.Greendale, Wisconsin
- Viking ElectronicsHudson, Wisconsin
- ALL SKY ENERGY, LLC.Baraboo, Wisconsin
- IEWCNew Berlin, Wisconsin
- KohlerKohler, Wisconsin
- MCS, Inc. (Matrix Cable Solutions, Inc.)Amery, Wisconsin
- SPX Transformer Solutions (Waukesha)Waukesha, Wisconsin
- Switchgear Power SolutionsSheboygan Falls, Wisconsin
- Switchgear Power SystemsWinneconne, Wisconsin
- Winnebago Solar SolutionsAppleton, Wisconsin
- G W ElectronicsOconomowoc, Wisconsin
Listings are grouped by category and location. Add your company
Other industries in Wisconsin
- Mechanical Components in Wisconsin
- Plastics & Packaging in Wisconsin
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- Electronics & Semiconductor in Wisconsin
- Automotive Parts in Wisconsin
- Textile & Apparel in Wisconsin
- Furniture & Woodworking in Wisconsin
- Food & Beverage Processing in Wisconsin
- Medical Devices in Wisconsin
- Pharmaceutical in Wisconsin
Electrical Equipment & Components in Wisconsin by specialty
- Wiring Harness in Wisconsin
- Switchgear in Wisconsin
- Circuit Breakers in Wisconsin
- Electrical Panels in Wisconsin
- Control Panels in Wisconsin
- Transformers in Wisconsin
- Industrial Cables in Wisconsin
- Connectors in Wisconsin
- Sensors in Wisconsin
- Relays in Wisconsin
- Electrical Wire & Cable in Wisconsin
- Solar Panels in Wisconsin
Electrical Equipment & Components in other states
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Frequently asked questions
Which certifications do electrical component manufacturers in Wisconsin list?
ISO 9001:2015: Badger Wire, Curtis Industries and 9 others. ISO 9001: Milwaukee Electronics, Surface Mount Technology and 3 others. RoHS Compliant: BOH Electronics, Electronic Technologies International and 3 others.