Magnetic Instrumentation Inc. (MI) is an Indianapolis, Indiana-based manufacturer and ISO 17025 accredited calibration laboratory specializing in magnetizing systems, magnetic measurement equipment, and custom magnetic solutions for OEM motor manufacturers, magnet producers, and industrial customers across North America and globally. The company’s product line spans standard and custom magnetizers capable of saturating virtually all permanent magnet materials and assembly configurations — including PM motors, linear actuators, loudspeakers, torque motors, and large Alnico assemblies — along with magnetizing fixtures, calibration and demagnetization systems, Hysteresigraphs, Gaussmeters, Fluxmeters, Helmholtz coils, a Franklin tester for lamination insulation, and reference magnets. MI also operates a laboratory division through its affiliate KJS Associates, offering professional magnetic testing and measurement services for customers needing low-volume or one-off characterization work, positioning the company as a full-service supply chain partner from prototype development through production.