Assemblies Suppliers in United States

Alliance LLC is a US-based supplier and manufacturer specializing in permanent magnets and custom magnetic assemblies. Founded in 2001, Alliance is ISO 9001:2015 certified and serves automotive, industrial, medical, energy, and communications industries. They offer all major magnet materials – Neodymium, Samarium Cobalt, Ferrite, Alnico, and bonded magnets – and utilize a global logistics network to provide cost-effective, just-in-time delivery for both Fortune 100 corporations and small businesses. Alliance’s in-house engineering and magnet testing labs ensure quality and technical support at every step. With multiple regional facilities in the US and Mexico, Alliance LLC delivers high-quality magnets on time, leveraging large-scale purchasing power to benefit buyers of all sizes.

Ryobi Die Casting USA Inc. is a premier manufacturer of aluminum die cast components and assemblies for the automotive industry. As part of the global Ryobi Group with origins dating back to 1943, they combine Japanese manufacturing excellence with American innovation to deliver lightweight, high-integrity die castings. Their advanced facility in Shelbyville, Indiana utilizes cutting-edge technologies including ultra-high-pressure die casting machines up to 4,000 tons. Ryobis vertically integrated approach encompasses engineering support, die casting, machining, and assembly with a focus on powertrain, structural, and EV components. Their commitment to continuous improvement and technical innovation makes them a trusted partner for automotive OEMs seeking quality and reliability.

Electron Energy Corporation (EEC) is an expert developer and leading American producer of rare earth magnets and assemblies. Founded in 1970, EEC pioneered samarium-cobalt magnet technology for high-performance aerospace and defense applications. The company operates two facilities in Pennsylvania totaling 84,800 sq. ft., where it produces SmCo and NdFeB magnets, custom magnetic assemblies, and transformer components. EEC’s vertically integrated capabilities include in-house alloy development, casting/sintering, precision CNC machining, and rigorous testing to meet the most demanding specifications. Its magnets power mission-critical systems like fighter jet actuators, guided missiles (e.g. Patriot), UAVs, and naval reactors. With a staff of about 130 and ITAR-compliant processes, EEC serves as a virtual “in-house” magnet technology partner to major military, aerospace, medical, and oil exploration customers. The company’s long history of innovation and quality ensures reliable magnet solutions for extreme environments and exacting standards.

Millat Industries stands as a premier supplier of precision machined components and assemblies for the transportation, aerospace, and defense sectors since 1965. The company excels in high-precision CNC machining, grinding, and assembly, specializing in complex powertrain, chassis, and safety system components. With vertically integrated operations including design engineering support, Millat offers comprehensive manufacturing solutions from prototyping through high-volume production. Their advanced automation systems and process controls ensure consistent quality while driving cost efficiency. Millats technical expertise, flexibility, and customer-focused approach have earned them long-standing relationships with major OEMs and Tier 1 suppliers, positioning them as a valued partner in critical manufacturing supply chains.

Dura Magnetics is a veteran magnet manufacturer founded in 1961. They specialize in engineer-to-order magnet solutions, designing and manufacturing custom magnets and magnetic assemblies for diverse industries. Dura works closely with customers, offering in-house design, proprietary magnetic simulation, and full development services to take projects from concept through production. With expertise in all major magnet materials (Neodymium, SmCo, Alnico, Ferrite) and AS9100D-certified quality for aerospace, Dura delivers mission-critical magnetics with reliability and innovation. Buyers choose Dura Magnetics for its decades of experience, collaborative engineering support, and ability to supply magnets from prototype to volume production.

Bunting Magnetics Co. is an industry-leading manufacturer of magnetic technology equipment, serving the worldwide printing, automotive, plastics, food, electronics, pharmaceutical, and recycling industries. Since 1959, Bunting has developed precision magnetic products ranging from magnetic separation systems and metal detectors to material handling conveyors and magnetic printing cylinders. The family-owned Bunting group offers a broad range of magnetic materials and components – including custom magnets and assemblies, bonded magnets, and magnetizers – produced across its global operations. The company’s solutions help remove metal contaminants (ensuring product purity and safety), move materials efficiently, and improve manufacturing processes. With over 60 years of expertise, Bunting provides innovative magnetic solutions that enhance productivity and quality for customers worldwide. Bunting is ISO 9001 certified and emphasizes food-grade and industry-specific standards (FSMA, etc.) in its product designs.

Integrated Magnetics (a division of ITG) is a pioneer in custom magnetics with over 60 years of expertise. Established in 1955, Integrated Magnetics specializes in design-to-specification and build-to-print permanent magnets, precision magnetic assemblies, and custom electro-mechanical components. They provide end-to-end solutions from prototype to volume production, with in-house design engineering (FEA modeling, magnetic circuit design) and world-class manufacturing (magnet fabrication, machining, clean-room assembly). With facilities in the US and Mexico, Integrated Magnetics delivers complex turnkey magnetic solutions for aerospace, defense, medical, and industrial applications worldwide. Buyers value their technical excellence, ISO 9001-certified quality, and collaborative approach to solving the most challenging magnet and motor design problems.

Dexter Magnetic Technologies, Inc. is a premier provider of comprehensive magnetic solutions. Since 1951, Dexter has designed, engineered, and manufactured complex magnetic circuits, permanent magnet components, and magnetic assemblies for customers in aerospace, medical, defense, and industrial markets. The company offers end-to-end services including precision magnetic design, 3D field modeling, prototyping (Dexter’s “Dextreme” rapid prototyping service), fabrication, and assembly with advanced quality control. Dexter is both a manufacturer and distributor – producing custom magnets and assemblies in-house while also supplying soft magnetic cores, magnetic sheet materials, and accessories worldwide. Certified to AS9100 and ISO 13485 standards, Dexter delivers aerospace-grade quality and medical device traceability in its products. With ~300 employees and over 66 years of expertise, Dexter Magnetic Technologies is the trusted single source for magnet solutions that require innovation, reliability, and exceptional engineering support.

Adams Magnetic Products, LLC has been engineering and supplying magnets since 1950. The company is a custom manufacturer, fabricator, and distributor of all types of permanent magnets (Alnico, Ceramic, Neodymium, SmCo, Flexible) and magnetic assemblies. Adams assists customers with magnetic design optimization and value engineering to ensure the most appropriate magnet solution at the lowest cost. With domestic and overseas fabrication operations and decades of magnet expertise, Adams can reliably fulfill production needs from quick-turn prototypes to volume orders. The company is ISO 9001:2015 certified and ITAR registered, underscoring its commitment to quality and defense requirements. Adams also serves the sign & graphics industry with magnet sheet and receptive materials, enabling easy update of signage using magnetic media. From concept to delivery, Adams Magnetic Products acts as a one-stop partner “for everything magnetic,” providing standard and custom magnets, assemblies, and magnet processing services.

Chicago White Metal Casting has been delivering premier die casting solutions since 1937, specializing in aluminum, magnesium, and zinc die cast components with exceptional precision and quality. Their comprehensive capabilities encompass engineering support, tooling development, die casting, machining, finishing, and assembly, providing customers with turnkey manufacturing solutions. CWMs technical expertise and advanced equipment enable them to produce complex, tight-tolerance components for demanding applications in automotive, medical, electronics, and industrial markets. Their commitment to engineering excellence, process innovation, and collaborative problem-solving has established them as a valued partner for OEMs seeking lightweight, high-performance components. With an unwavering focus on quality, competitive pricing, and on-time delivery, CWM continues to set industry standards for custom die cast components.

Grede is a leading manufacturer of highly engineered cast and machined iron components with a rich heritage dating back to 1920. As one of the largest iron casting suppliers in North America, they produce over 350,000 tons annually of ductile, gray, and specialty iron castings for safety-critical automotive and industrial applications. Gredes comprehensive capabilities span design assistance, pattern making, casting, heat treating, machining, and assembly, delivered through nine manufacturing facilities. Their technical expertise in metallurgy and innovative production techniques enables complex, lightweight castings that help customers meet challenging performance requirements. Gredes commitment to quality, operational excellence, and continuous improvement has established them as a trusted partner for OEMs seeking durable, cost-effective iron components that withstand the most demanding operating conditions.

Twin City Die Castings Co. is a premier aluminum and magnesium die casting manufacturer with over 100 years of expertise serving critical industries. Founded in 1919, TCDC has evolved into a technically advanced supplier providing full-service solutions from engineering and design through finishing and assembly. Their capabilities span from prototype to high-volume production, utilizing sophisticated equipment including die casting machines from 400 to 1,600 tons. TCDCs dedication to innovation, quality, and collaborative engineering enables them to deliver complex components that meet demanding specifications. Their ISO and IATF certified operations in Minnesota and South Dakota combine cutting-edge technology with traditional craftsmanship to create value-added solutions for medical, defense, automotive, and industrial applications.

PHB Inc. is a globally recognized leader in custom metal components and assemblies with over 100 years of innovative manufacturing experience. Specializing in precision engineered solutions through die casting, metal injection molding, and CNC machining, the company delivers high-quality, cost-effective components to diverse industries including automotive, aerospace, and industrial markets. PHBs vertically integrated capabilities encompass design, tooling, and production, offering customers a seamless experience from concept to completion. With state-of-the-art facilities and advanced technological capabilities, PHB consistently meets stringent quality standards while maintaining exceptional customer service and on-time delivery performance.

Thomas & Skinner, Inc. is the world’s leading manufacturer of cast and sintered Alnico magnets, magnetic assemblies, and transformer laminations. Founded in 1901 and now 100% employee-owned, the company also produces soft ferrite cores through its Ceramic Magnetics subsidiary and fabricates tungsten heavy alloy components for defense and aerospace. Thomas & Skinner’s magnetic materials are critical to strategic military systems – its high-coercivity Alnico magnets and custom assemblies are used in jet aircraft, missiles, naval systems, and space applications (requiring extreme heat resistance and stability). The company maintains an ITAR-compliant facility in Indiana and adheres to strict quality standards (ISO 9001 certified) to support defense and nuclear customers. With over a century of metallurgical expertise, Thomas & Skinner provides consistently high-performance magnets and alloys, partnering with clients to meet the toughest magnetic design challenges.

Arnold Magnetic Technologies (founded 1895) is a leading global manufacturer of high-performance magnets and magnetic assemblies. Arnold produces a comprehensive range of permanent magnets (NdFeB, SmCo, Alnico, ferrite), electromagnets, precision thin metal foils, and even electric motor components. They serve demanding markets like aerospace, defense, automotive, and energy – their magnets and systems appear in Boeing 787s, EV powertrains, and renewable energy equipment. With vertically integrated capabilities from alloy casting to final assembly, Arnold offers end-to-end magnetic solutions, backed by AS9100-certified quality and over a century of materials expertise. Buyers choose Arnold for its collaborative engineering approach, advanced R&D (e.g. carbon-fiber rotor designs) and proven track record in delivering innovative, mission-critical magnetics.