Should there be anything wrong with a link, please, let me know. I will be glad to correct it.
Note that a Company can appear in several categories.

HR NMR: Manufacturers of High-Resolution NMR Spectrometers

Note: OEM's produce also a full range of accessories and offer service for their systems.

• ACT. Mobile and table-top NMR solutions, including spectrometers (jointly with Magritek).
• Agilent Technologies with their ex Varian branch.
  High-field HR-NMR spectrometers and small-scale MRI equipment.
• Anasazi Instruments. New and reconditioned 60 and 90 MHz spectrometers.
• Bruker. High Field HR-NMR, benchtop LR-NMR, preclinical MRI and EPR equipment.
  Visit Bruker NMR Guide.
• Jeol. HR-NMR and ESR equipment. For the NMR page, click here. Or here for Jeol USA.
• Magritek. Table-top NMR spectrometers and other NMR/MRI instruments (see also ACT).
• Nanalysis Corporation are close to launching a 60 MHz table-top NMR spectrometer.
• PNA, Process NMR Associates. 60 MHz process HR-NMR + more.
• picoSpin. Miniature table-top 45 MHz spectrometers.
• Process NMR Associates (PNA). Frequency- and Time-Domain NMR Analyzers + more.
• Resonance Systems Ltd. Related to Process NMR Associates. Spin Track instruments. (Russia).
• Wang NMR with its Jupiter NMR branch.

Manufacturers of time-domain NMR, relaxometers, and niche instruments

Note: OEM's produce also a full range of accessories and offer service for their systems.

• ACT. Mobile (ex-situ) NMR solutions. An NMR-MOUSE commercial spin-off.
• Bruker. High Field HR-NMR, benchtop LR-NMR, preclinical MRI and EPR equipment.
  Visit Bruker NMR Guide.
• CEM Corporation. Table-top LR-NMR for food analysis and agricultural applications.
• Exstrom Laboratories. Earth-field NMR and personal LR-NMR.
• GE Security division incorporated old Quantum Magnetics.
  Remote NQR & NMR explosives detectors are no longer a hot topic, however.
• Halliburton well-logging equipment and services. They absorbed the Israeli NUMAR business.
  Look up 'Products & Services' > 'Wireline and Perforating' > 'Open Hole Services' > 'NMR'.
• HTS-110 Magnetic Solutions (New Zealand). A small FT-NMR system
  with a magnet made from high temperature superconducting (HTS) wire.
• Modcon Systems offers a 60 MHz FT-NMR industrial process-control analyzer Mod-8000.
• MR Resources. Table top LR-NMR instruments (UNIQ-PMR).
• nanoMR, miniature instruments with specific and novel medical applications.
• NMR-MOUSE is now a commercial spin-off venture of RWTH, Germany.
• NMR Petrophysics. All around NMR well-logging (lots of educational stuff, too).
• NiUMAG. Table-top LR-NMR relaxometers and NMR/MRI combinations. See also the Chinese link.
  In the US represented by EB Research
• Oxford Instruments. Low field NMR analysers and imagers.
• Process NMR Associates (PNA). Time- and Frequency-Domain NMR Analyzers + more.
• Progression. Industrial NMR and LIBS analyzers with a wide range of applications.
• Qualion NMR Analyzers. 60 MHz FT-NMR for industrial process control.
• Resonance Systems Ltd. Related to Process NMR Associates. Spin Track instruments. (Russia).
• SPINLOCK Magnetic Resonance Solutions, based in Córdoba, Argentina.
  Low-field time-domain NMR spectrometers with applications in food and oil industry.
• Stelar. Research/routine Fast-Field-Cycling NMR Relaxometers (FFC-NMR), Parahydrogen source, ...
  Based in Mede (PV), Italy. In USA and Canada, contact Molecular Specialties.
• Resonance Systems. NMR Spin Track analyzers for a number of industrial applications.
• T2 Biosystems. Diagnostic mini-relaxometers to be used with their NanoDx particles.
• Vista Clara Inc. NMR for hydrological (motto: 21st Century Geophysics).

NMR Subsystems: Manufacturers of probes, VTC's, boards, ...

• Agilent Technologies NMR probes. Ex Varian and ex Nalorac.
• Daedalus Innovations. High pressure sample tube adaptors.
  Primarily intended for reverse micelle NMR, but usable also in other contexts.
• Doty Scientific. Probes, solid state probes, high-field MRI coils, ...
• Fraunhofer Institute of Biomedical Engineering. NMR probes, gradients, small magnets, etc.
• JS Research. NMR probes (construction and repairs). Based in Massachusetts, USA.
• Lab-Tools (the instrumentation section). A range of hardware units (custom design welcome).
• M2M Imaging. Custom (microimaging) probes of all kinds (0.2 - 10 T). MRI accessories. Cleveland, USA.
• Millrock Scientific. Gas chillers for NMR / X-ray sample-temperature control. New York, USA.
• Morris Instruments. Handy probe tuning devices. NMR RF consulting & repairs. Canada.
• NMR-Service. German service company; can build custom static/solids probes. A Tecmag dealer.
• Novatia. Their SepNMR isolates trace compounds from mixture into NMR tubes.
• Oxford Instruments. Magnets, cryostats, power supplies, accessories of many types.
• PNA, Process NMR Associates. Custom NMR components + more.
• Protasis. MicroFlow probes and the One-Minute NMR system. See also Micro NMR.
  Represented in Europe by RS²D.
• Oxford Instruments. Accessory for Dynamic Nuclear Polazization (DNP).
• PulseTeq. RF spectroscopy (+other) coils and electronics for NMR and MRI.
• Revolution NMR. Spinning hardware for solid-state NMR and solid-state probes.
• Scientific Instruments Brno. Cooling systems, vacuum pumps, and a Bruker dealer.
• SP Scientific FTS Systems. Cold/Hot air streams, chillers, freezers, thermal baths, vapor traps.
• SpinCore Technologies. NMR & EPR subunits and single-board NMR systems.
• Stelar. Parahydrogen generators, VT controllers and FFC relaxometers.
• Tecmag. NMR, NQR and MRI subunits.
• Torquay Instruments specialize in room temperature shim systems. Based in UK.
• Wang NMR with its Venus Corporation branch (email carlcarter at wangnmr.com).

Educational and training NMR instruments

• Anasazi Instruments. New and reconditioned 60 and 90 MHz FT spectrometers.
• Leybold Didactic (or LD Didactic). CW 20 MHz low-resolution instruments for high schools.
• Magritek. Table-top NMR/MRI educational instruments of all kinds.
• NiUMAG. Table-top LR-NMR relaxometers and NMR/MRI combinations. See also the Chinese link.
  In the US represented by EB Research
• PNA, Process NMR Associates. Educational time-domain NMR + more.
• picoSpin. Truly miniature table-top 45 MHz spectrometers.
• TeachSpin. Small 15 MHz pulsed NMR for teaching and Earth-field NMR.
• TelAtomic. Small 15 MHz pulsed NMR instruments and a CW NMR/ESR.

Used/Refurbished NMR Systems & System Upgrades (except MRI)

• Anasazi Instruments. FT-upgrades for old Varian EM360/EM390 instruments,
  but also brand new 60/90 MHz spectrometers.
• Independent Cryogenic Engineering (ICE) stocks re-manufactured NMR/MRI magnets and NMR cryo-probes. Based in New Jersey, USA.
• International Equipment Trading (IET). Click NMR inventory.
• Lab X trades in all scientific hardware. Look for NMR. Buy/Sell. Great bargains.
• McKinley Scientific. Used NMR's, supercons, and other instruments ...
• MR Resources. Used NMR instruments (including high-field), subunits and accessories.
• NMR Associates buy, sell, trade and repair used NMR intruments.
• RS²D. Used & refurbished NMR systems (with service). (French)
• Tecmag. NMR, NQR and MRI upgrades and Consoles.
• Triangle Analytical. Pre-owned equipment (North Carolina)

NMR Software: commercial Companies operating in the field

• ABQMR, a spin-off from New Mexico Resonance, founded by E.Fukushima and A.McDowell.
• ACD Labs. Spectroscopy software (processing, prediction, structure elucidation, ...).
• Acorn NMR offers software related to HR-NMR, in particular the NUTS package.
• Adept Scientific sells the gNMR package for HR-NMR spectroscopy.
• ADF Scientific Computing and Modelling includes NMR, ESR and NQR parameters prediction.
• Bruker NMR software news. Top-Spin, Aurelia-Amix.
• CambridgeSoft's ChemDraw package includes NMR prediction features.
• ChenomX. Software to quickly identify and quantify metabolites in NMR spectra.
• Cosmos Software offers some (limited) NMR stuff in the COSMOS package.
• Extra Byte develops third-party NMR software/firmware.
• Felix NMR post-acqusition processing & analysis.
• Green Imaging Technologies offer NMR core-analysis software for porous rocks.
• Hallogram Publishing sells the HyperNMR HR-NMR spectra predictor.
• Lab-Tools. NMR relaxation and poresize analysis routines.
• Magritek sells a 2D Laplace Inversion package and the PROSPA MRI package.
• Mestrelab Research. Nice, affordable n-D HR-NMR spectroscopy packages
  (multi-platforms Mnova NMR, Mnova NMRPredict Desktop, Mnova MS).
• ModGraph. Their NMRPredict handles 1H and 13C shifts and coupling constants.
• NMR Petrophysics has LoGIC software for NMR well logging.
• NmrTec. Software for HR-NMR spectroscopy (NMRNotebook) and DOSY processing.
• Nucleomatica has a nice, low-cost NMR spectroscopy package (iNMR) running under MAC OS X.
• One Moon Scientific. Free NmrViewJ and Swank,
  and commercial DataChord Spectrum Analyst and Spectrum Miner.
• Perch Solutions. Their PERCH NMR is a quite complete HR-NMR package.
  Note: Perch has a special arrangement with Bruker.
• ScienceSoft NMR software for Varian data and/or instruments.
  NMRanalyst, AssembleIt, FindIt, VerifyIt, LockIt, and ShimIt.
• Sigma-Aldrich's Spectral Viewer
• Spectrum Research. NMR spectroscopy software for Windows/CGI Iris/SunOS, Solaris:
  SpecMan, NMR-SAMS, NMR-SCAPE, CHORDS, CONTRAST, IQ-NMR,...
• Upstream Solutions. 1H and 13C shifts and J's prediction. Online demo.
• Yasara. Molecular-graphics and simulation for Windows, Linux and Mac OS X.
  Includes an NMR structure determination plug-in.

NMR Services: maintenance, essays, training, design, consulting, .... dtto for MRI

• ABQMR, a spin-off from New Mexico Resonance, founded by E.Fukushima and A.McDowell.
• Acorn NMR measures, evaluates and interprets HR-NMR spectra. (California).
• Anvendt Teknologi offers expertize in LR-NMR applications (Norway).
• ASLA Biotech offer contract studies on protein structure determinations (Ohio, USA).
• Baker Hughes offers NMR well-logging services (MR Explorer or just MReX).
• Biqualys offers extremely accurate analysis using LC-NMR-MS (Netherlands).
• ChenomX. Metabolic profiles from NMR spectra of bio-fluids evaluation/measurements).
• eMolecules. Manages an NMR spectra database of over 500 thousands molecules.
• Extra Byte. NMR/MRI consulting, courses, support for patent attorneys, etc. Italy.
• Halliburton well-logging equipment and services. They absorbed the Israeli NUMAR business.
  Look up 'Products & Services' > 'Wireline and Perforating' > 'Open Hole Services' > 'NMR'.
• HydroScope Lab offers water prospecting at Geo-MRI scale.
  Spin off from Institute of Chemical Kinetics and Combustion, Russia.
• Independent Cryogenic Engineering (ICE),
  services for NMR/MRI magnets and NMR cryo-probes. New Jersey, USA.
• Intertek Caleb Brett outsources worldwide lab services.
  See their NMR laboratory services overview. UK, Australia, USA, France, ...
• Invento, a Uni Torino (Italy) spin-off, will discuss and implement your LR-NMR ideas.
  Co-founded by Stelar.
• Lab-Tools. NMR contract analysis of pore size distributions and properties of liquids in pores.
• MR Safety Testing Services. Based in Los Angeles, CA, USA.
• NMR-MOUSE investigations are available from RWTH, Germany.
• NMR Process Systems - joint venture of Process NMR Associates and TTC Labs. Measure spectra etc.
• Microvolt Services Measurements of EMI or RFI in a NMR laboratory.
• Morris Instruments. NMR RF consulting & repairs. Handy probe tuning devices. Canada.
• New Mexico Resonance. Non-profit MR research group (grants & contracts). See also ABQMR.
• NMR-Service. Service & custom development (probes, filters, etc...). Germany.
• NMR Service + Consulting for Food, Fiber and Polymer industries. Texas.
• NmrTec. HR-NMR expertise and development. France.
• Novatia measures HR-NMR spectra. New Jersey.
• Numare Spectralab measures NMR spectra. Pennsylvania.
• Open Technologies. NMR service and maintenance. Indiana.
• Process NMR Associates. NMR services and courses. Connecticut.
• R4R (Research for Rent). NMR consulting, particularly in metabolomics.
  European and Italian research projects guidance. Industry/academy matchmaking. Based in Italy.
• Revolution NMR. Maintenance of solid-state probes.
• RS²D. Offer hardware service on all kinds of MR instruments. (French)
• Spectral Data Services measure NMR spectra. Illinois.
• Spectral Service measure NMR spectra. Köln, Germany.
• SpinLab. NMR Spectroscopy and MRI services. Italy.
• Spinnovation applies NMR to problems in material, chemical and bio sciences. Netherlands.
• Spronk NMR Consultancy. Biomolecular NMR structure determination and services. Lithuania.
• Triangle Analytical. Maintenance services. North Carolina.
• Vis Magnetica. NMR consulting of Gonzalo Hernández. Uruguy.
• Wang. NMR probes (Venus branch) design and maintenance.

• Application-oriented services
• LipoScience.
  NMR blood tests lipoprotein particle number to assess risk of heart disease. North Carolina.
• Wine Scanner measure spectra of intact bottles of wine. California.

• University-based spectroscopy services
• ETH Organic Chemistry department. Switzerland.
• Hebrew University, Organic Chemistry Department . Israel.
• Queen Mary College. England.

NMR: Distributors of NMR equipment (except MRI)

• EB Research. Benchtop NMR/MRI instruments for research applications and teaching. (USA)
  They distribute NiUMAG equipment.
• International Equipment Trading (IET). Click NMR inventory. (USA)
• Lab X trades all scientific hardware. Look for NMR. Buy/Sell. (USA).
• Molecular Specialties, EPR accessories supplier. Represents Stelar in North America. (USA)
• NMR Laboratory Store at Amazon is managed by Extra Byte.
• Rototec-Spintec. Represents Magritek, Oxford, Stelar, etc. (Germany)
• RS²D. Distribute Protasis and Doty probes and Tecmag products (with service). (France)
• Scientific Instruments Brno. They represent Bruker in Czech & Slovak Republics. (Czech Republic)

NMR Consumables: tubes, solvents, spinners,... (click here for cryo-gases)

• Ampol. Tubes for HR-NMR.
• Armar Chemicals. Tubes, solvents and isotopes for HR-NMR. Based in Switzerland.
• ASLA Biotech. Protein standards, PF1 phage for NMR studies. (Ohio, USA).
• Cambridge Isotope Laboratories. Chemicals, isotopes, HR-NMR solvents, ...
  Recently acquired Spectra Stable Isotopes.
• C/D/N Isotopes. Isotopically enriched and deuterated compounds. Quebec, Canada.
• CortecNet. Global distributer of tubes, HR-NMR solvents, isotopes, Bruker consumables, ....
• Euriso-Top. Tubes, HR-NMR solvents, isotopes, ....
• FluoroChem. Tubes, HR-NMR solvents, isotopes. UK Euriso-Top distributor.
• GPE. Glass Precision Engineering. Norell distributor in UK.
• Goss Scientific Instruments. Tubes, HR-NMR solvents, isotopes. UK.
• Icon Isotopes. Isotopically enriched chemicals.
• Invitrogen. Isotope-labeled recombinant proteins for NMR spectroscopy. Search for NMR.
• Isotec-Aldrich. Isotope enriched products (materials, solvents, proteins, peptides, synthesis, ...)
• Kimble/Chase. Lab glassware including NMR tubes and accessories. New Jersey, USA.
• MagSense Life Sciences produce hydrophile super-paramagnetic particles of well-defined size.
• New Era Enterprises. Tubes for HR-NMR and IR; dewars, UV-VIS accessories.
• Norell. Tubes for HR-NMR. They also have a nice NMR blog dedicated to sample tubes.
• Optima sample tubes and lab instruments (Japan).
• Rototec-Spintec. Spinners and tubes for HR-NMR. Based in Germany.
• Shigemi. Special/high quality sample tubes. Pennsylvania, USA.
• Sigma-Aldrich. Chemicals, isotopes, HR-NMR solvents, sample tubes, ...
• Silantes. Stable isotope labeled biomolecules.
• Spectra 2000. Solvents, tubes, rotors, spinners, isotopes, custom synthesis.
• Spectra Stable Isotopes. Isotopes and HR-NMR solvents.
  Recently acquired by Cambridge Isotope Laboratories.
• T2 Biosystems. Super-paramagnetic, selectively coated NanoDx particles.
• Wilmad Labglass. Tubes for HR-NMR, ESR, etc.

• Fornitori in Italia:
• Spectra 2000. Solventi, tubi, rotori, spinner, isotopi, sintesi per conto terzi.
• Steroglass rappresenta la Wilmad Labglass. Tubi per HR-NMR etc.

ESR: Companies operating in the field of Electron Spin Resonance

• Active Spectrum produces the smallest ESR spectrometer ever! Located in California.
• Bruker. High Field HR-NMR, benchtop LR-NMR, preclinical MRI and EPR/ESR equipment.
• Jeol. HR-NMR and ESR equipment. For ESR page, click here.
• L&M EPR Supplies. TPX capillary sample tubes.
• MagnetTech. ESR Spectrometers for Research and Routine Applications.
• Molecular Specialties. ESR probes, loop-gap resonators, TPX capillaries, and other accessories.
• Norell EPR sample tubes.
• Resonance Instruments produce small ESR instruments (models 8400/8410) and accessories.
  Service on Varian E-series and on Micro-Now Instruments (they own the assets of the latter).
• Scientific Software Services. Acquisition modules and software for ESR (EwWin, SpecMan4EPR).
• SpinCore Technologies. NMR & EPR Pulser boards.
• Defunct: SPIn Co.Ltd, EPR instruments producer in St.Petersburg (Russia).
• PNA, Process NMR Associates. Benchtop Micro-ESR + more.
• TOMCO Technologies. MW amplifiers for pulsed ESR. Based in Australia.

NQR: Companies operating in the field of Nuclear Quadrupole Resonance

Note: most broad-band, time-domain NMR consoles are suitable for NQR as well.

• Reorganized: General Electric Security. They absorbed the ex Quantum Magnetics.
• Defunct: QR Sciences. Explosives / drugs detection. Australia.

MRI: Manufacturers of MRI scanners and consoles

Note: OEM's produce also a full range of accessories and offer service for their systems.

• Advanced Veterinary Technologies specialize in veterinary MRI scanners.
• Agilent Technologies with their ex-Varian branch.
  Small-size MRI scanners and high-field HR-NMR spectrometers.
• Anke. An MRI manufacturer in China. English page.
• Aspect. Aspect Magnet Technologies. Desktop 1T MRI systems. Israel; with a subsidiary in Italy.
  Special agreement with Bruker.
• Bruker. High Field HR-NMR, benchtop LR-NMR, preclinical MRI and EPR equipment.
• Esaote. An Italian producer of MRI scanners. Italy.
• Fonar. The Company founded by Raymond Damadian.
• General Electric Healthcare. Look for MRI. Europeans, click here.
  Also of interest: GE Healthcare newsroom.
• Hallmarq Veterinary Imaging build MRI systems to scan standing equine limbs.
• Herley Microwave Technology. MRI scanners (click medical).
• Hitachi Medical Systems. MRI scanners. Japan, USA, Europe, Cina, Singapore, ...
• IGC Intermagnetics General Corporation. MRI scanners, magnets, coils, ...
• IIC Innovative Imaging. Small imagers for materials. MRI consulting, ...
• IMRIS Innovative MRI Systems. 1.5T scanners for operating rooms.
• InSightec. MR-guided Focused Ultrasound (MRgFUS) surgery systems.
  Based in Israel, operates worldwide.
• Insight Neuroimaging Systems. MRI of test animals.
• Magritek Earth field and educational MRI instruments.
• Millennium Technology. Open 0.35 permanent-magnet system (Virgo).
• MR Solutions. Affordable benchtop MRI console. Coming: benchtop small-bore MRI.
• MRTe or MRTechnology. Small-scale, very compact MRI systems. Related to ABQMR
• NiUMAG. Small size (including bench-top) MRI systems. See also the Chinese link.
  In the US represented by EB Research
• Odin Medical Technologies. MRI scanners (StarPole) for operating room.
• ONI Medical Systems. Small 1T MRI scanner (OrthOne, orthopaedic etc).
• Oxford Instruments. Low field imagers and NMR analysers.
• Paramed Medical Systems. Open-access human and veterinary imagers based on permanent
  magnets and/or novel combinations of cryogen-free superconductor with an iron yoke. Italy.
• Philips Medical Systems. MRI scanners.
• RS²D. Produce OPTImouse, a 1.5 T mini-imager for pre-clinical applications. (French)
• Siemens. Search for MRI and/or Molecular Imaging. Their pages are not individually adressable!
• Toshiba Medical Systems. Select area, then look for MRI.
• Toshiba Medical Systems, Europe. Click MRI.
• Universal Systems (veterinary, petrological and archeological MRI scanners).

MRI Subsystems: Manufacturers of MRI coils and other MR accessories

• Brain Products. An EEG Company moving into the EEG-fMRI field.
• Carolina Medical Parts. Second-hand, revisioned MRI coils and other parts
• Cool Pair Plus. Cryo-systems and MRI site monitoring & related services.
• Current Designs. Fiber-optics response devices (fORP).
• Doty Scientific. Probes, solid state probes, high-field MRI coils, ...
• EGI. MR-compatible EEG systems (EEG-fMRI).
• Fraunhofer Institute of Biomedical Engineering. Coils, gradients, phantoms, etc.
• IECO International Electric Company. High precision magnet and gradient power supplies.
• IGC Intermagnetics General Corporation. MRI scanners, magnets, coils, ...
• Invivo Corporation. Coils, visualization systems, patient monitors.
• K_Space. Audio and video adaptors for MRI.
• LMT Medical Systems. MRI coils, particularly for pediatric scanning.
• M2M Imaging. Custom (microimaging) probes of all kinds (0.2 - 10 T). MRI accessories. Cleveland, USA.
• Machnet. MRI Coils, particularly for breast and carotid.
• MagMedix. Coils and other products for MRI facilities (with accent on safety).
• MedRad. Coils, contrast agents infusion systems, interventional MRI, ....
• Morris Instruments. Handy probe tuning devices. MRI RF consulting & repairs. Canada.
• MRI Tools. Coils, cardiac gating MRI accy, services. Germany.
• Nano4Imaging, MRI compatible implants and interventional MRI tools.
• NeuroScan, part of CompuMedics. EEG-fMRI hardware and software.
• Noras MRI. Coils of various types; breast coils for biopsies.
• Oxford Instruments. Magnets, cryostats, power supplies, all kinds of accessories.
• Phantom Laboratory. All kinds of phantoms: MRI, CT, abstract, realistic, custom, ...
• PulseTeq. Electronics for NMR / MRI and RF Coils.
• RAPID Biomedical. Custom-designed MRI coils.
• ScanMed. MRI coils.
• Shelley Medical Imaging Technologies. Realistic phantoms for all imaging modalities.
• Tecmag. NMR, NQR and MRI electronic subunits.
• Tesla Engineering. MRI gradient coils and special magnets.
• THM Medizintechnik has a neonatal MRI accessory, plus much more. Germany.
• Time Medical. HTS (High-temperature superconductor) pioneers in MRI coils design.
• Ulrich Medical. MRI contrast agents injectors.
• Vivid Imaging can provide/repair MRI coils, injectors, contrast agents.
• West Physics Consulting. MRI phantom holder, consulting, testing.
• XLR imaging. MRI coils, including dual-tuned spectroscopy coils.

Educational and training MRI instruments

• Magritek. Table-top NMR/MRI educational instruments (Terranova MRI).
• NiUMAG. Table-top LR-NMR relaxometers and NMR/MRI combinations. See also the Chinese link.
  In the US represented by EB Research

Used MRI: Refurbished MR scanners and scanner upgrades

• Atlantis Worldwide distribute used MRI scanners, mostly in the USA.
• Atlas Medical Technologies. Ontario, Canada.
• Barrington Medical Imaging. Cost effective equipment and service.
• Block Imaging International trade in used, refurbished MRI scanners. Ample choice.
• Genesis Medical Imaging offers MRI services.
• ICS Medical sells, buys, and services medical imaging equipment.
• Integrity Medical Technologies.
• JDI Solutions specialize in Siemens imagers. Based in North Carolina.
• MagnaServ. Have also mobile scanners for lease. Florida.
• Med Exchange. Click MRI.
• Medical Imaging Group handle MRI and CT.
• Monarch Medical cover most of medical imaging equipment.
• SMIT Mobile and relocatable MRI units (plus more).
• SMTI Sunrise Medical Technology.
• Sound Imaging mobile MRI Systems and MRI assessories.
• Tecmag. NMR, NQR and MRI upgrades.
• Total Imaging Concepts, Inc (TICI). Used MRI (Luisiana).
• West Valley Imaging Systems. Used MRI's (mostly GE and Siemens), CT's and PET's. (California)
• Zetta Medical Technologies. Used MRI / CT, spare parts, service, upgrades, ... (Illinois)

MRI Software: commercial Companies operating in the field

• Dicom@Offis offers a range of DICOM-related software.
• ABQMR, a spin-off from New Mexico Resonance, founded by E.Fukushima and A.McDowell.
• Lead Technologies' DICOM software development kit (SDK).
• Magritek sells the PROSPA MRI package and a 2D Laplace Inversion package.
• Merge Healthcare offers the MRI-CAD known by the name CADstream.
• NeuroScan, part of CompuMedics. EEG-fMRI software and hardware.
• PuntoExe sells C++ Open Source Dicom Library (Imebra SDK) and DicomXBridge (an ocx).
• Speag software (SEMCAD X, Musaic) evaluates EMI/EMC, RF deposition, and coils performance.
  They use phantoms to actually check their calculation and real sensors to monitor RF fields.
• VP Diagnostics offers the MRI-PlaqueView software to assess atherosclerosis.
• Xinapse develops the popular Java-based Jim medical images viewer and manipulator.

MRI Services: maintenance, training, design, consulting, safety, .... dtto for NMR

• Alliance Medical. MRI scanning and training.
• Butler MRI . Cleaning MRI facilities. New England to Giorgia.
• Cambridge Neuroimaging evaluates fMRI data on a software as a service (SaaS) basis. UK based.
• Carolina Medical Parts. Repair of MRI parts and coils. North Carolina, USA.
• Cool Pair Plus. Services related to cryo-systems and MRI site monitoring.
• Extra Byte. NMR/MRI consulting, courses, support for patent attorneys, etc. Worlwide operation.
• Genesis Magnet Services (GMS). MRI magnet servicing, maintenance, emergencies. Illinois.
• IIC Innovative Imaging. Small imagers and MRI consulting, ...
• MedAmerica International. EMI / RF shielding. .
• Mednovus specializes in MRI safety (see their SAFESCAN). .
• MagMedix seminars on health effects and safety.
• Microvolt Services. Measurements of EMI or RFI on an MRI site.
• Morris Instruments. MRI RF consulting & repairs. Handy probe tuning devices. Canada.
• MR:comp. MR safety and compatibility consulting and testing services. Germany.
• MriEducation offers courses and other educational resources.
• MRI Tools services. They also produce coils and a cardiac gating MRI accy. Germany.
• National MRI Shielding. Installs shielded MRI room. Texas.
• Neuromorphometrics. Measures of brain regions in MR images. Massachussetts.
• NMR Consulting. They concentrate on the health business (MRI). Maryland.
• Professional Imaging Services. MRI systems maintenance (Esaote, etc). Based in California.
• Resolution Diagnostics. Technical services, spare and used parts. California.
• Simply Physics, run by Moriel NessAiver. Education & accreditation services. Maryland.
• Sonora Medical Systems (MRI doctor). Repair boards, subunits. Colorado.
• SpinLab. NMR Spectroscopy and MRI services. Italy
• Sound Imaging MRI services, spare parts and assessories.
• Vivid Imaging can repair/provide MRI coils, injectors, contrast agents.
• West Physics Consulting. Health physics consulting and testing. .
• Zetta Medical Technologies offer MRI / CT service, upgrades, spare parts, ...

MRI: Distributors of MRI equipment

• CSP Medical. Distrubute MRI coils, phantoms, safety equipment, etc.
• DotMed. Used medical equipment. Search for 'MRI'. .
• EB Research. Benchtop MRI/NMR instruments for research applications and teaching.
  They distribute NiUMAG equipment.
• Lab X medical trades also in used MRI hardware. Look for MRI.
• Medical Products Direct. A medical supermarket.
• Medtronic distributes Odin Medical Technologies MRI scanners.
• Sound Imaging MRI coils, assessories and services.

MRI Consumables: contrast agents, imaging film,... (click here for cryo-gases)

• Bracco. MRI contract agents (ProHence, MultiHence).
• Ferrania. Film for diagnostic applications, including MRI.
• Lantheus Medical Imaging. MRI contract agents ( ABLAVAR, DEFINITY, ...).
• Schering. MRI contrast agents.
• T2 Biosystems. Super-paramagnetic, selectively coated NanoDx particles (contrast agents).

• Fornitori in Italia:
• Ferrania. Film per applicazioni diagnostiche, inclusa la RMI.

MRI/NMR compatible devices and tools

• AADCO Medical. A-magnetic overhead suspensions and other tools (see their MRI section).
• Avotec Inc. Audio and visual stimulation and tracking for MRI & fMRI.
• AEA Technology. Field-tolerant meters/network analyzers to test/tune NMR probes, MRI coils, etc.
• Ampco Safety Tools. A-magnetic tools. They sell on Amazon.
• Bransonic. Ultrasonic cleaners for NMR tubes and other equipment.
• FTS Systems. Temperature control; specific units for NMR/ESR.
• Invivo Corporation. Visualization systems, patient monitors, coils, ...
• Imprex. Titanium a-magnetic tools.
• MagMedix. All kinds of products for MRI facilities.
• MatchRockets. Magnetic-field viewing film.
• Measurand. Data gloves, limb trackers and joint angle sensors for use in MRI.
• MetraSens. Entrance ferromagnetic detection (the Ferroguard line, ...)
• MRC. Unique MR-compatible video cameras.
• MRI Devices. Vital Signs Monitors, Anaesthesia Machines, Infusion Pumps, ...
• MriEquip sell MRI-compatible tools and equipment.
• Newmatic Medical offer a broad range of MRI-compatible tools and equipment.
• Sound Imaging tools and services for MRI sites.
• Speag 4-channel (near-field EM, SAR, Temp) measurement system (EASY4MRI) for MRI.
• THM Medizintechnik offers all kinds of MR-compatible tools, MR-accessories, and safety devices.
  Some items are quite unique (pulseoxymeter and neonatal MRI accessory). Germany.
• ZMT Zurich Medtech. Medical implant test systems permit to assess MRI compatibility.

MR Components: electronic subunits and components

• AR. RF amplifiers, transient generators, antennas, EMC test systems, EMI receivers ...
• AR² Communications Products. Good and affordable MR preamplifiers for all tastes and fields ...
• AR. RF amplifiers, transient generators, antennas, EMC test systems, EMI receivers ...
• Bird Technologies. RF components and power meters. Ohio, USA.
• Broadband Power Technology. RF power amplifiers. Utah, USA.
• CPC (Communication Power Corporation). RF power amplifiers. New York, USA.
• Empower RF Systems. RF power amplifiers. California, USA.
• Femto. Signal recovery modules (amplifiers, receivers).
• Herley. RF & MW assemblies (power amplifiers etc).
• Miteq. RF & MW components and assemblies (preamps etc).
• NuWaves engineering, RF subsystems and design. Ohio, USA.
• Ophir RF. RF power amplifiers.
• PTS. Programmed Transmitter Sources: NMR-grade RF generators.
  Read their interesting article on frequency generation technology.
• PulseTeq. RF coils and electronics for NMR and MRI.
• Resonance Research. Gradient/shim coils & power supplies, consulting. Massachusetts, USA.
• SpinCore Technologies. NMR & EPR pulser boards and single-board NMR systems.
• TOMCO Technologies. Pulsed/CW RF/MW amplifiers for NMR and ESR. Based in Australia.
• Trans Tech. Ceramic resonators & filters, magnetic materials, ...
• Werlatone. Wide-band, power (uni-, dual-, bi-) directional couplers and combiners/dividers, ...

Special MR materials and passive electronic components

• China Defence Technology. High-tech EMF screening materials.
• Columbus Superconductors. MgB2 low-cost, high-temperature superconducting wire. (Italy)
• ComPlast ComPlex plastics produce Kel-F (poly-chloro-trifluoro-ethylene, PCTFE). Worldwide.
• FCT Electronics. Non-magnetic connectors for NMR/MRI (contact them for specs).
• Franco Corradi. Special ceramics, Peltier elements, temperature sensors, ... (Italy)
• Johanson capacitors. Special ceramic capacitors.
• Litz-wire manufacturer in Ohio, USA.
• MedAmerica International. EMI / RF shielding. .
• Morgan Advanced Ceramics. High-tech ceramics like the machinable Macor.
• OR64. High-frequency Litz wire manufacturer in Spain.
• Polyflon. Capacitors, electroplated teflon.
• Precision Ceramics produce machinable (Macor, Shapal-M, Boron Nitride, ...).
• San Diego Plastics produce Kel-F (poly-chloro-trifluoro-ethylene, PCTFE)
  and the machinable ceramics Mykroy and Mycalex.
• The Phoenix Company of Chicago. RF/MW connectors, including non-magnetic ones.
• Voltronics. NMR tuning capacitors, ceramic capacitors.

Cryo-gases: liquid helium and nitrogen

• Air Liquide. Cryogenic gases, technical and pure gases.
• Matheson Tri Gas. Cryogenic gases. Cover all of USA.
• Praxair. Cryogenic and other gases, crymagnet maintenance. Click NMR or MRI in the left column.

• Fornitori in Italia:
• Air Liquid. Gas criogenici.
• Rivoira. Gas criogenici. Gruppo PraxAir
• Sapio. Gas criogenici.

ElectroMagnetic Interference (EMI) devices and services

• China Defence Technology. High-tech EMF screening materials.
• DICTUC Ingeniería MR Unit. RF screening, magnetic shielding, EMI testing. Based in Chile.
• MedAmerica International. EMI / RF shielding. .
• Microvolt Services Measurements of EMI or RFI in an NMR laboratory.
• National MRI Shielding. Installs shielded MRI room. Texas.
• Speag software (SEMCAD X, Musaic) evaluates EMI/EMC, RF deposition, and coils performance.
  They use phantoms to actually check their calculation and real sensors to monitor RF fields.

Companies concerned with magnet systems and magnetic fields

Click here for more Companies in Magnetics and download this Magnetics Resource Guide.

• Agilent Technologies magnets. Ex-Varian, ex-Magnex. UK.
• ASC Scientific produces the hand-held SM-20 magnetic susceptibility meter.
• ASG Superconductors. Magnets for physics research (for CERN etc). Italy.
• Aster Enterprises. Permanent magnets design for NMR and MRI and more.
• Bartington Instruments. Fluxgate magnetometers, magnetic susceptibility measuring instruments.
• BFM Beijing Futong Magnet produces a broad-range of permanent magnets. (China)
• Columbus Superconductors. MgB2 low-cost, high-temperature superconducting wire. (Italy)
• Conectus. Consortium of European Companies determined to use superconductivity.
• Cryogenic Ltd. Wide range of magnets (including cryogen-free) and accessories. (UK)
• Cryomagnetics Inc. Supercon magnets, including those for NMR and cryogen-free. (Tennessee)
• DanFysik. Magnets, power supplies, I/V transducers (replace reference resistors!).
• Drusch. NMR magnetic field meters and stabilizers. Germany
• EAS. European Advanced Superconductors GMBH & Co KG. Low- and high-temperature superconducting wires. Part of Bruker BioSpin group. Hanau, Germany.
• Genesis Magnet Services resell and service cryomagnets. Illinois.
• GEM Systems. Magnetometers and related services. Ontario.
• GMW Associates. Distributor/integrator of sensors and instruments based on magnetics.
• Group 3. Hall field meters, control loops and remote sensors.
• HTS-110 Magnetic Solutions (New Zealand).
  Magnets made from high temperature superconductors (HTS), including cryogen-free ones.
• IECO International Electric Company. High precision magnet and gradient power supplies.
• IGC Intermagnetics General Corporation. MRI scanners, magnets, coils, ...
• Jastec Superconductor. Superconducting magnets (also cryogen-free) and wires. Supplies Jeol.
• LOT Oriel magnetometry and cryo-technology. See the supercon magnets.
• Magtech. Permanent magnets. Hong Kong.
• MatchRockets. Magnetic-field viewing film.
• MetroLab. NMR teslameters, field cameras, field stabis and small permanent magnets. Switzerland.
• MRTe (or MRTechnology). Innovative permanent magnets for MR. (Japan)
• Oxford Superconducting Technology. Part of Oxford Instruments.
  Supercon magnets and low-temperature accessories.
• Oersted. Equipment for the magnetics industry; permanent magnets.
• Praxair. Cryomagnet services and maintenance. Based in Colrado (USA).
• Super Magnet Man. If you are in Alabama and need a custom-made magnet, contact him.
• Supermagnete. Amazing choice of permanent magnets and accessories.
  Affordable prices; e-mail shop. Based in Uster (Switzerland). Multi-lingual site (18 languages!)
• Tesla Engineering. A UK producer of specialty magnets, including supercons.
• Torquay Instruments specialize in room temperature shim systems. Based in UK.
• Vector Fields. Software for magnetostatics, electrostatics, elmag fields (including RF), ...
  Agente italiano Technosoft.
• Wang NMR. Superconducting magnets of all kinds (including custom designs).
• Trans Tech. Magnetic materials, ceramic resonators & filters, ...

• Magneti e relativi accessori in Italia
• Asg Superconductors. Magnets for physics research (for CERN etc). Italy.
• Calamit. Magneti permanenti.
• Columbus Superconductors. MgB2 low-cost, high-temperature superconducting wire. (Italy)
• Italfit Magneti. Magneti permanenti.
• Supermagneti. Versione italiana del sito swizzero-tedesco. Sorprendente.