Prem Magnetics
Prem Magnetics is a US-based, family-owned manufacturer of electrical transformers, inductors, and custom electromagnetic coils founded in 1972 in Johnsburg, Illinois. It sells a catalog of standard components online with worldwide shipping and provides custom coil design, 3D printed bobbin fabrication, and prototyping services to audio, medical, aerospace, and electronics customers.
- Company typePrivate
- Founded1972
- HeadquartersIllinois City, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Prem Magnetics does
Prem Magnetics is a US-based manufacturer of electromagnetic components — transformers, inductors, and custom coils — founded in 1972 and headquartered at 3521 N Chapel Hill Rd, Johnsburg, Illinois. The company operates as a multi-generational, family-owned business with 11–50 employees, many of whom have 20–40+ years of tenure. Prem Magnetics sells both a catalog of standard electrical components (audio/coupling/telephony transformers, switchmode power transformers in the SPP-3000/4000/4100 series, bobbin-core and surface-mount inductors, instrument and current transformers, speaker line matching transformers, magnetic components including bobbins, and CRT display magnetics) and a broad portfolio of custom manufacturing services — custom transformers, custom chokes and inductors, custom air core inductors, custom solenoids, custom coil assemblies, and coil winding including trifilar, bifilar, and linear configurations. Core technology centers on electromagnetic coil manufacturing, with proprietary in-house production-grade 3D printed bobbins that allow rapid custom-form fabrication without traditional tooling.
The company runs a dual go-to-market: a BigCommerce-powered e-commerce storefront with worldwide shipping for standard catalog purchases, and a quote-based direct-sales motion for custom engineered parts offering design consultation, prototyping, and production-grade manufacturing with no minimum order quantity and no non-recurring engineering (NRE) charges. Customer segments span audio and electronics manufacturers, medical equipment makers, aerospace, radio/telecommunications, and engineering R&D departments. Prem Magnetics maintains compliance with RoHS, REACH, ITAR, California Proposition 65, UL 1863 (DUXR2), and BS EN 60950, and supports Conflict Minerals and Cobalt reporting templates — credentials that gate access to aerospace, defense, medical, and EU export channels. The company is privately held with no external institutional investors and operates within a related ownership group that includes Remington Industries, a wire and cable assembly supplier serving as the US-made wire feedstock for Prem Magnetics' coil winding operations.
Prem Magnetics firmographics
Firmographics- Name
- Prem Magnetics
- Legal name
- Prem Magnetics
- Website
- https://premmagnetics.com
- Company type
- Private
- Founded year
- 1972
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Prem Magnetics is a US-based, family-owned manufacturer of electrical transformers, inductors, and custom electromagnetic coils founded in 1972 in Johnsburg, Illinois. It sells a catalog of standard components online with worldwide shipping and provides custom coil design, 3D printed bobbin fabrication, and prototyping services to audio, medical, aerospace, and electronics customers.
- Ownership category
- akta.pro rank
Prem Magnetics industry classification
Industry- Product category
- Magnetic Components (Transformers & Inductors)
- NAICS
- Power, Distribution, and Specialty Transformer Manufacturing (335311)
- SIC
- Electronic Coils, Transformers & Other Inductors (3677), Power, Distribution & Specialty Transformers (3612)
- akta.pro primary industry
- Transformers & Magnetics (Power/Signal) (HDAHANAD)
- akta.pro secondary industries
- Transformers (Power, Distribution, Instrument, Specialty) (IMAGAAAA), Inductors & Coils (Power/RF/Chokes) (HDAHANAC)
Keywords
Where Prem Magnetics is headquartered
LocationHeadquarters
- HQ city
- Illinois City
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Prem Magnetics business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Others
Revenue model
- Standard Products Sales: Sale of standard electrical transformers, inductors, and coils through e-commerce storefront with online purchasing capability.
- Custom Coil Manufacturing: Custom design and manufacturing services for transformers, inductors, chokes, and electromagnetic coils including prototype and production-grade parts. No minimum order charges and no non-recurring engineering charges for custom products.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Standard Transformers and Inductors |
| Other | Multi-year contract | Custom Product Orders |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels4 records
Prem Magnetics product offering
Product offeringCore offering
Prem Magnetics designs and manufactures electrical transformers, inductors, and electromagnetic coils made in the USA. Its offering is split between standard catalog components (audio/coupling/telephony transformers, inductors, switchmode transformers, instrument/current transformers, speaker line matching transformers, magnetic components/bobbins, CRT display magnetics) sold through an e-commerce storefront, and engineered-to-order custom services (custom transformers, chokes, air core inductors, solenoids, coil assemblies, coil winding, and 3D printed bobbins) sold via consultation and quote.
Product overview
Prem Magnetics is a manufacturer of electrical transformers, inductors, and coils made in the USA. The product portfolio centers on two main categories: standard electrical components and custom manufacturing services. Standard products include Audio/Coupling/Telephony Transformers (with sub-types for 2-wire to 4-wire hybrid, modem, voice & data, xDSL, surface mount, and UL recognized variants), Inductors (economy bobbin core, PC mount, surface mount, switchmode power supply, and through-hole series), Switching Transformers (SPP-3000/4000/4100 series), Instrument & Current Transformers, Speaker Line Matching Transformers, Magnetic Components (bobbins), and CRT Display Magnetics. Custom services encompass Custom Transformers, Custom Chokes and Inductors, Custom Air Core Inductors, Coil Winding Services, Custom Assemblies, Custom Solenoids, and 3D Printing Services. The company is based in Johnsburg, Illinois, and has operated since 1972.
Differentiator
Problem solved
Functional benefit
Products and services
- Audio, Coupling & Telephony Transformers A comprehensive catalog of transformers for audio, data coupling, and telecommunication applications, including 2-wire to 4-wire hybrid transformers, modem transformers, voice and data transformers, xDSL transformers, and surface mount options, available to add-to-cart and purchase online.
- Inductors A wide range of standard inductor products including economy bobbin core, PC mount (bobbin and slug core), surface mount, switchmode power supply, and through-hole mounting options across multiple series (SMI, SPE, SPS, SPB), available online.
- Switching Transformers Switchmode power transformers available in SPP-3000, SPP-4000, and SPP-4100 series for power supply applications.
- Instrument & Current Transformers Transformers designed for instrumentation and current measurement applications.
- Speaker Line Matching Transformers Transformers for matching speaker lines in audio applications.
- Magnetic Components Magnetic components including bobbins for transformer and inductor construction.
- CRT Display Magnetics Magnetics for CRT display applications including electronically adjustable dynamic linearity coils.
- Custom Transformers Custom transformer design and manufacturing services for aerospace, audio, power, and impedance matching applications, from prototype to production-grade.
- Custom Chokes and Inductors Custom inductor, choke, and reactor manufacturing including prototype and production-grade parts with specified inductance ratings.
- Custom Air Core Inductors Specialized custom air core inductors for niche applications.
- Coil Winding Services Full-service coil winding for custom transformers, inductors, and electromagnetic coils, including linear, trifilar, and bifilar winding.
- Custom Assemblies Custom coil assembly services for complex electromagnetic coil configurations.
- Custom Solenoids Custom solenoid coil manufacturing services.
- 3D Printing Services 3D printed bobbin production services to create custom forms for new coils, enabling efficient and affordable wound coil solutions.
Companies that use Prem Magnetics
Customer profileSegments5 records
Ideal customer profiles6 records
Prem Magnetics technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Prem Magnetics partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Remington IndustriesminorRelated business entity under same ownership. Remington Industries sells high-quality wire (predominantly made in the USA) meeting stringent UL and NEMA safety standards and complying with ASTM, RoHS, and REACH. Also offers wire processing services (cutting, stripping, terminating) and sells custom cable assemblies, 6061 aluminum, and 304 stainless steel. Ideal source for wire used in coil winding.
Scale indicators2 records
Recent moves6 records
Expansion highlights6 records
Prem Magnetics competitors and assessment
Company assessmentBroad incumbents
- Hammond Manufacturing: Long-established North American manufacturer of electrical transformers, inductors, and enclosures serving industrial and electronics markets. Overlaps Prem's transformer line but operates a broader product portfolio.
- Bel Fuse: Global supplier of power conversion and magnetics products including transformers and inductors (parent of Signal Transformer). Comparable magnetics categories but with much broader portfolio and scale.
- Würth Elektronik: Global electronic component manufacturer with extensive inductor, transformer, and EMC product lines. Comparable in passive magnetic component categories but operates at much larger scale across many geographies.
- TDK Electronics (EPCOS): Global manufacturer of electronic components including transformers, inductors, chokes, and signal magnetics. Overlaps Prem's product categories but serves customers as part of a much broader component portfolio.
Direct peers
- Coilcraft: Major US-headquartered manufacturer of RF, power, and signal inductors and transformers serving communications, computing, and consumer electronics. Closely overlaps Prem's inductor and transformer portfolio for electronics applications.
- Triad Magnetics: US-based manufacturer of standard and custom transformers, inductors, chokes, and coils serving audio, medical, industrial, and aerospace customers. Highly comparable in product line, custom manufacturing model, and customer segments to Prem Magnetics.
- Signal Transformer: Manufacturer of transformers, inductors, and chokes (part of Bel Fuse) serving industrial, commercial, and consumer electronics. Directly comparable in standard power and signal magnetics offerings.
- Datatronics: Custom magnetics manufacturer producing transformers and inductors for aerospace, defense, medical, and industrial applications. Comparable in custom-engineered coil solutions and regulated end-market exposure.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Prem Magnetics social profiles
Digital presencePrem Magnetics compliance and trust
Trust signalCompliance8 records
Prem Magnetics financial estimates
Financial estimateRevenue estimate
Valuation estimate
Prem Magnetics leadership team
Management profileNumber of profiles
Prem Magnetics funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Prem Magnetics M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Prem Magnetics
What does Prem Magnetics do?
Prem Magnetics designs and manufactures electrical transformers, inductors, and electromagnetic coils made in the USA. Its offering is split between standard catalog components (audio/coupling/telephony transformers, inductors, switchmode transformers, instrument/current transformers, speaker line matching transformers, magnetic components/bobbins, CRT display magnetics) sold through an e-commerce storefront, and engineered-to-order custom services (custom transformers, chokes, air core inductors, solenoids, coil assemblies, coil winding, and 3D printed bobbins) sold via consultation and quote.
Is Prem Magnetics a public or private company?
Prem Magnetics is a private company. It is classified as family owned and is currently operating.
When was Prem Magnetics founded?
Prem Magnetics was founded in 1972. It employs 11 to 50 people.
Where is Prem Magnetics based?
Prem Magnetics is headquartered in Illinois City, United States, in the North America region.
How does Prem Magnetics make money?
Two revenue lines are on record. Standard Products Sales are the primary driver. The others are custom Coil Manufacturing.
Who are Prem Magnetics's main competitors?
Broad incumbents on record are Hammond Manufacturing, Bel Fuse, Würth Elektronik and TDK Electronics (EPCOS). Direct peers are Coilcraft, Triad Magnetics, Signal Transformer and Datatronics.
Does Prem Magnetics have an API?
No public API is recorded for Prem Magnetics.
What industry is Prem Magnetics in?
Prem Magnetics's product category is Magnetic Components (Transformers & Inductors). Its primary akta.pro industry code is HDAHANAD, Transformers & Magnetics (Power/Signal), with a secondary code of IMAGAAAA, Transformers (Power, Distribution, Instrument, Specialty). Its NAICS code is 335311 and its SIC code is 3677.