Gorman Machine Corporation - Brockton, MA
Manufacturer
Manufacturer of toroidal coils.

Digi-Key - Thief River Falls, MN
Distributor, Manufacturer, Custom Manufacturer
Broadline distributor of electronic components, including chokes & coils: armature, automotive, DC, EMI/RFI suppression, filter, military specification, RF, surface mount, toroidal, transformer. Coils include aluminum, copper, custom, lead, magnetic, nickel alloys, plastic, tin, & titanium.
Brand Names: Coiltronics, J. W. Miller, Murata, Wurth

S.G. Smallwood, Inc. - Kitchener, ON
Manufacturer, Custom Manufacturer, Service Company
Specializes in the design, manufacture & distribution of transformer & inductor components to suit circuit & product applications.Manufacturing capabilities include computer assisted design, toroidal winding, bobbin & layer winding, vacuum epoxy encapsulation, varnish impregnation, fabrication of specialized custom parts & comprehensive computerized product testing.

Bicron Electronics Co. - Canaan, CT
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified manufacturer of standard & custom designed coils. Types of coils include toroidal, solenoid, high frequency & choke coils.

Magnetico, Inc. - Holtsville, NY
Manufacturer, Custom Manufacturer
Design & Manufacturer Of Military, Aerospace & Space Magnetics, Engineering Prototype Through Production. Transformers, Inductors & Planar Magnetics For Critical Applications Including, High Voltage & High Temperature, MIL-T-27-QPL, MIL-PFR-27, MIL-STD-981, NHB5300. 3A-2 & NASA-STD-8739.3

Agile Magnetics - Concord, NH
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of state-of-the-art computer modeled coils including toroidal coils for use with transformers. Other types of coils including air core inductor, copper sheet, high frequency, litz wire, self-supporting & magnet wire coils are also available. Specialty coils including bobbin wound, encapsulated, relay & solenoid coils are also available in a wide range of wire gauges & sizes. Capabilities include short lead time, short & high volume runs.ISO 9001:2000 & RoHS compliant.

Sag Harbor Industries, Inc. - Sag Harbor, NY
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified manufacturer of custom toroidal coils & toroidal chokes. Features computer controlled processes for repeatability & accuracy. Capabilities include 0.20 in. to 10.0 in. capacities, 14 to 48 American wire gauge wire range, progressive winding, multi-filar winding, prototypes & production runs & magnetic & electrostatic shielding.

CORTEC Enterprises - Forest Lake, MN
Manufacturer, Custom Manufacturer
Automated Manufacturer Of Custom Toroids & Toroidal Transformers. Precision, Multi-Layer, Common Mode, Inductors. Support Services Include Prototypes, Testing, Engineering, Add-On Assembly, Special Tooling, On-Line Customer Interfacing. ISO 9002 Compliant

V&F Transformer - Bartlett Road Bartlett, IL
Manufacturer, Custom Manufacturer
Manufacturers of a complete line of custom & semi-custom transformers, assemblies & resettable protection devices to meet a variety of UL, CSA or VDE requirements. Toroidal transformer coils.

Alfamag Electronics - Houston, TX
Manufacturer, Custom Manufacturer
ISO 9000:2008 certified manufacturer of custom & toroidal coils. Products also include common mode chokes, power & energy storage inductors & current transformers, impedance matching transformers & AC/DC switching power supplies. RoHS compliant.

Conolog Corp. - Somerville, NJ
Manufacturer
Manufacturer Of Electronic Filters, Telemetering Equipment

Bridgeport Magnetics Group Inc. - Shelton, CT
Manufacturer, Custom Manufacturer
Manufacturer of toroidal coils. Standard designs include step-down, isolation, low voltage lamp transformers & de-buzzing chokes. Capabilities include up to 20,000 VA & three-phase to 60 KVA. Applications include telecommunications, medical, automotive, computers & peripherals, aircraft, robotics, test measurement instruments, low-voltage lighting & power supplies.

DT Magnetics - Knightdale, NC
Manufacturer, Custom Manufacturer
Electronic Transformers, Filters & Coils

URD America, Inc. - Laguna Niguel, CA
Manufacturer, Custom Manufacturer
Manufacturer Of Current Sensors, Transformers & Digital Power Meters

Bokar International - Scranton, PA
Manufacturer, Service Company
Compact, European Torodial Transformers Built & Tested To IEC 742, EN60742, VDE 551 & PN-88/E 08105 Standards. Double-Insulted Primary Leads, Insulation Class B (130 C). Power Ranges From 10 VA To 2500 VA, Up To Secondary Voltages

South Haven Coil - South Haven, MI
Manufacturer, Custom Manufacturer
Manufacturer Of Custom Coils, Toroids, Inductors, Magnets & Laminated Transformers

Trans Tech - Markham, ON
Manufacturer, Service Company

Precision Components, Inc. - Carol Stream, IL
Manufacturer
Manufacturer of toroidal & bobbin coils.

Cletronics, Inc. - Medina, OH
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of electronic components including toroidal coils for military space program, medical equipment, inspection & surveillance cameras. Custom specialty coils available.

Coils Inc. - Huntley, IL
Manufacturer
Manufacturer of sensors, battery chargers, electric coils.

C & D Technologies, Inc. - Raleigh, NC
Manufacturer, Custom Manufacturer
ISO-9001, Manufacturer Of Micro-Ferrite Based Electronic Components: Inductors & DC-DC Converters. Miniature, Hybrid Component Manufacturing

Cymatics, Inc. - Naperville, IL
Manufacturer
Current Sensors, Controls & Transformers

Barwood Electronics Inc. - Tujunga, CA
Manufacturer, Service Company
Amplifiers, Coils, Transformers

Mag-Con Engineering - Lino Lakes, MN
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of custom magnetics & coils including toroidal coils, surface mount coils, electric coils, magnetic coils, pot core coils, saturable reactor coils, & multi-channel coils. Customized surface mount coils, toroidal coils & saturable coils also available. Coilwinding services offered including air core style coilwinding, multi-channel coil & water-cooled demagnetizing coilwinding for film & media industry. Capabilities include winding large wires up to 10,000 amps of wind coils amperage.

GSG Industries - Robinson, IL
Manufacturer, Service Company
High Voltage Flyback Transformers & Degaussing Coils