Made in CT

Company Profile

  • Company: EFC/Wesco
  • Category: Electrical Equipment & Components
  • Website:
  • Location: 41 Interstate Lane, Waterbury, CT
  • Contact: Bob Fountain, (203) 755-5629
  • Congressional District: Fifth District
  • Congressional Representative: Jahana Hayes
  • Social Media:


EFC/Wesco is a Connecticut based manufacturer of standard and custom film capacitors that has been in business since 1981. We are a leading supplier for the power electronics, instrumentation, and surge suppression markets. Products include Metallized, Film/Foil, RC Networks, EMI Suppression, DC Link, High Voltage and High Current capacitors.

Products & Services

EFC/Wesco offers a complete line of ENEC and UL recognized EMI Suppression capacitors. The EMI Suppression films are “X” and “Y” class radial lead Polypropylene box style, with voltage ratings to 440VAC and capacitance values to 10.0μF. Our standard film line offers Epoxy Dipped Radial Lead, IGBT Snubbers, UL Recognized RC Networks, Feed-Thru designs, and DC Link capacitors. Not to mention a wide variety of metallized and foil versions of Polyester, Polypropylene, Polyphenylene Sulfide as well as high-quality Polystyrene capacitors with excellent capacitance stability. We can also supply plastic encased capacitors, rectangular or round, axial or radial lead, made to your specifications. EFC/Wesco specializes in “tight” tolerances and custom designs.

  • Modern facility comprised of state-of-the-art machinery
  • Vast portfolio of high quality competitively priced capacitors
  • Capability to solve your special capacitor problems in a timely fashion

Contact information for this manufacturer is located at the top of this profile



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