Electronics Manufacturing Services (EMS) / Custom Magnetics

STC Inc. Electronics Manufacturing Services (EMS)

STC, Inc. provides advanced-turnkey manufacturing and engineering services for a wide range of electronics applications, including aerospace, defense, high-reliability commercial and industrial — and manufactures custom transformers (up to 10 KVA), inductors, and coils. Our focus is on low to medium-volume assemblies with a high degree of complexity.

Utilize our expertise. Send us your specs.

Magnetics

STC manufactures custom transformers, inductors, and coils for high-reliability, as well as industrial and commercial, applications.

Engineering Design

STC focuses on low to medium volume electronics projects, offering a seamless path from prototype development to serial production.

Electronics Mfg

STC capabilities include automated pick-and-place surface mount (SMT), through-hole (thru-hole), and mixed technology.

STC, Inc. Continues Work to Support U.S. Air Force KC-46 Tanker Program

March 21, 2025
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STC, Inc. is proud to announce its continued work as a component supplier for the U.S. Air Force’s KC-46 aerial refueling tanker p

STC, Inc. is looking for a Maintenance Worker

March 6, 2025
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STC, Inc., a manufacturer of transformers & PCB assemblies for a variety of industries, including Aerospace, Military, Scientific, and Industrial is seeking candidates for a Maintenance Worker. Job Requirements Must be able to lift 70 lbs. Fork-lift experience is helpful, …

Leslie Hopkins 15 Year Milestone With STC

March 4, 2025
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Leslie Hopkins celebrated her 15th anniversary with STC in January. She originally joined as a draftsperson responsible for creati

STC, Inc. is looking for an Electronic Technician

February 28, 2025
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We are looking for an Electronic Technician to add to our team in McLeansboro. Qualifications include: Associates Degree in electr

ISO Re-certification Obtained

February 27, 2025
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In late 2024 STC hosted an external audit to obtain re-certification for our Quality Management System to ISO 9001 standards. The

Continual ISO-Based Improvement

August 20, 2021
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One notable aspect of adherence to ISO standards is the commitment to continuously improve company…

STC Certified as HUBZone Business

June 23, 2021
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The US Small Business Administration has approved STC as a certified HUBZone business. As such, STC is now eligible for…

Open Position: Electronic Technician

August 4, 2020
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STC, Inc., a manufacturer of transformers & PCB assemblies for a variety of industries, including Aerospace, Military,…

PCBs with Custom Magnetics

May 7, 2019
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Many potential customers may be unaware that we not only manufacture custom transformers but that we also provide…

Calkin’s 30-Year Milestone

October 12, 2018
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“When I think about the biggest moments of my career,” says Angie Calkin, “I would probably say the Nighthawk production…

STC, Inc. – Social Media