Master Magnetics, Inc. (The Magnet Source)


Your best source in the magnetic field!

Founded in 1976 and located in Castle Rock, Colorado, Master Magnetics, Inc. manufactures and distributes magnets and magnetic devices for commercial, industrial and consumer use. Our large inventory and warehousing capabilities (over 15 million magnets in stock), along with two regional production and distribution facilities, ensure fast and cost-effective delivery. The Magnet Source™ brand is a trademark of Master Magnetics, Inc., representing exceptional quality, expertise and customer service.


Neodymium Magnets and SweeperIndustrial Magnets

For lifting, holding, separating, and retrieving, we have the right magnetic assemblies and permanent magnetic materials for all types of industrial, OEM and commercial applications. Our expertise and ability to develop customized solutions will match the correct magnet for your application.

 Roll of Sheeting


Our line of flexible magnetic sheeting and strip is ideal for sign making, ad specialty, printing and point of purchase displays. Our custom cutting and slitting capabilities, plus a wide range of magnet thicknesses and laminates will meet any customized project application requirement.

 Store Display


We offer a complete line of retail-ready magnets and magnetic devices for Hardware, Home Improvement, Automotive, Craft, Hobby, Office/School Supplies and Housewares categories. The Magnet Source™ brand is a proven profit center for retail markets with over 200 SKUs, trilingual packaging and customized planograms. We have achieved the highest rankings on vendor scorecards for on-time delivery, complete shipments, bar code compliance and product quality.

Our consumer packaged magnets are available at local and national retailers throughout North America. For locations and more information, visit our Where to Buy page in the Packaged Magnets at Retail section of our site or call 1.888.293.9190.




747 S Gilbert St
Castle Rock, Colorado 80104
United States of America

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