DRUSCH NMR: magnetic field measurement (Popularity: ): DRUSCH is supplier of test- and field measurement equipment applying NMR methods Acorn NMR (Popularity: ): Offers desktop NMR data processing software and operates a high resolution NMR spectroscopy service in Fremont CA. Includes the SAM manual. METROLAB Instruments (Popularity: ): NMR precision measurement and control of magnetic fields. They use teslameters, digital integrators, nmr, metrolab instruments, hall, and magnetometers to measure magnetic fields. GMW Associates (Popularity: ): A supplier of magnet power supplies. These guys have some interesting magnetic field measuring devices. Magnetic and current measurement, electromagnets, control and accelerator systems (vibration measurements). Programmed Test Sources (Popularity: ): PTS makes frequency sources. For all types of NMR systems. SpinCore Technologies, Inc. (Popularity: ): Pulse programmer board, very useful and very versatile. High Field NMR Systems (Popularity: ): These guys make patient tables, RF front ends and entire spectrometers. Resonance Research (Popularity: ): Magnet services, cryoshims instrumentation, cryo-power supplies, gradient coils, gradient amplifiers and magnetic field mapping. Cryostats for NMR open and closed cycle systems (Popularity: ): Advanced Research Systems supplies Displex and Heli-tran open and closed cycle cryostats for research and development in NMR as well as other areas of low temperature research. MµShield Magnetic Shielding (Popularity: ): Magnetic Shield Design and Manufacturing. Monitor Enclosures designed to eliminate EMI, technical notes, heat treating. Notes on VT work (Popularity: ): Excellent set of notes for VT work on a Varian system.