Manufactures advanced magnets, cryostats and SRF cavities. The company provides low cost equipment and a variety of services to scientific community of accelerators, superconductivity and cryogenics.

High efficiency wire antennas.

Bartington Instruments manufacture fluxgate magnetometers, magnetic field sensors and magnetic susceptibility systems for soils and rocks

Online bookstore for books on electromagnetics and relating subjects, links on the subject.

Caylar is a manufacturer of NMR and Hall effect gaussmeters (teslameters), magnetic field regulators in closed loop systems.

Supplier of magnets, specializing in custom magnet shapes and designs. Eagerly works with inventors, companies, universities, schools, and individuals worldwide.

A specialist supplier of permanent magnets, including Neodymium magnets, ferrite magnets, alnico magnets and rubber magnets. Offers free advice and technical help.

Neodymium rare earth magnets, steel bar magnets and horseshoe/U-shape magnets for science education, industry and magic.

Real-world signals contain wanted and unwanted information. Therefore, some kind of electronic filtering technique must separate the two before processing and analysis can begin.

Professional engineering services in Ontario, Canada. Numerical electromagnetics prototypes and analysis of antennas, scatterers and coupled structures in support of system design, troubleshooting and compliance assessment.

Really slick magnetic field sensors. And the electronics to interface them.

Powerful Neodymium and Ceramic magnets and other products, sold new and surplus and at wholesale prices. Site also has a FAQ for magnets and electromagnetism, and magnetic demonstration images.

Hirst Magnetic Instruments Ltd. manufactures a range of portable and handheld gaussmeters for measurement of magnetic flux densities.

Precision Magnetic Field measuring instruments, and fiber optically linked Distributed Control Systems.

Company specializes in eddy current non destructive testing (NDT). An overview of NDT is provided, including theory pages on electromagnetics and practical applications.

High quality instrumentation and detectors for magnetic field AC,DC and for nuclear radiation (apha, gamma, and x-radiation) measurement.

Manufacture probes for resistivity test measurement of semiconductors, silicon wafers and thin metal films. Based in Leighton Buzzard, UK.

Kemo produce a wide range of electronic signal filters, from simple filter modules to complex computer controlled multi-channel systems with gain.

Over thirty years in magnetic field measuring and testing; products include gaussmeters, fluxmeters, and measuring coils

MEI provides a broad spectrum of services that include design and manufacture of electromagnets for high energy physics, fusion research, hi-tech, medical, and other industrial applications.

High performance SQUID electronics and laboratory amplifiers.

Magneto Telluric instruments for marine geophysics can record high frequency data, combining magnetic field and electric field measurements. Located in Brest (France).

Electromagnetic complex materials with both negative real permittivity and permeability. The web site includes information and provides a forum for discussion.

Provides information about magnetic materials as well as characterization techiques and the standard instrumentation methods.

The NHMFL develops and operates high magnetic field facilities used for research in physics, biology, bioengineering, chemistry, geochemistry, biochemistry, materials science, and engineering.

Company advertises 120dB high-performance shielding material for electromagnetic waves.

Company supplies instruments and service for several fields in science. Special expertise is in magnetic instruments and screening, as well as medical related devices. Based in Spain.

Company provides a complete service from design, through assembly, to installation and commissioning. The focus is on custom-built and special magnets, but the company also supplies standard cryogenic equipment and consultancy services.

Manufacture and supply Magnetic Field Sensors, used by a series of ASICS (Application Specific Integrated Circuits) for applications such as gaussmeters, vehicle detectors, compasses, magnetometers and gradiometers.

Electron beams and electronic systems. Equipment for measuring and cancelling magnetic fields in the environment of electron microscopes.

Transformers, current transformers, voltage dividers, electromagnets, X-ray power supplies, pulse forming networks.

Fluxgate magnetometers, magnetic field compensation systems (active magnetic shielding), and magnetic permeability meters.

Vacuum Systems for Micro Analysis is a manufacturer of photo-electron mass spectrometers capable of fast quantity non-destructive chemical mapping. Based in UK.

Produces hard ferrite, permanent, rare earth, NdFeb, Neodymium, SmCo, and AlNiCo magnets. Headquarters located in Xiamen, China.