Bear Power Supplies
- Manufacturer of dc-to-dc converters up to 300 volts
- http://www.bearpwr.com/

Voltage Multipliers Inc.
- Maker of standard, semi-custom, and custom high voltage power supplies.
- http://www.highvoltagepowersupplies.com/

Five Star Associates, Inc.
- Manufacturing and design firm that specilizes in high voltage power conversion electronics for military and commercial applications. Products include traveling wave Tube (TWT) and other high voltage power supplies.
- http://www.fivestarassoc.com

Pulsers,streak cameras,and imagers
- Manufactuer of high speed pulsers, optical imagers, x-ray imagers.Q switch drivers, picosecond pulsers, pockels cell drivers.
- http://www.pulsetek.com

High Voltage Power Supply Information
- Includes notes on selecting and applying high voltage power supplies, as well as a buying guide.
- http://www.highvoltageinfo.com/whitepapers/high-voltage-power-supplies.php

Electron Tubes, Inc.
- Provides high voltage power supplies for mass spectroscopy, analytical instrumentation and photomultiplier biasing.
- http://www.highvoltagesolutions.com

Omiran
- Suppliers of low and high voltage DC power supplies, linear AC power amplifiers & current sources.
- http://www.omiran.co.uk/

Advanced Conversion Technology
- Manufacturer of custom military high voltage power supplies
- http://www.actpower.com/

American Power Design
- Supplier of high voltage DC to DC converters. The product range is from 0.5 to 200 watts with outputs to 8000Vdc.
- http://www.apowerdesign.com/

Lumina Power
- Manufacturer of laser diode power supplies that delivers up to 80A and 1500W.
- http://www.luminapower.com/

Power Technology, Inc.
- Power Technology, Inc. designs, manufactures, and distributes laser diode products, including high voltage power supplies for lasers.
- http://www.powertechnology.com/

ITT Power Solutions
- ITT Power Solutions is a leading supplier of high voltage power supplies for military and commercial applications.
- http://www.kandm.com/

Voltex
- Designers and manufacturers of HeNe laser power supplies
- http://www.voltex.net/

Accel Power Supplies Ltd
- Designer and manufacturer of high voltage power systems for scientific and analytical applications.
- http://www.accel.co.uk/

Physique and industrie
- High voltage, high power, solid-state pulse generator, designed for plasma ion implantation or plasma lasers.
- http://www.physiqueindustrie.com/pulse_generator.php

Origin Electric America Co., Ltd.
- Power supplies for industrial high voltage equipment.
- http://www.origin-usa.com/e_powersupplies_hv.htm

Lambda High Power
- Manufacturer of high voltage capacitor charging power supplies.
- http://www.lambda-hp.com/

Hyacinth Technology, Inc.
- Designs and manufactures high voltage power supplies and amplifiers for various OEM and scientific applications
- http://www.hyacinthtech.com

High Voltage Concepts
- Designs and manufactures high voltage power supplies and high voltage diagnostic equipment, including general purpose supplies, x-ray power supplies and high voltage dividers.
- http://www.hvconcepts.com/

EGRA
- Manufactures high voltage generators, capacitors and transformers for electrostatic painting, powder coating and flocking processes.
- http://www.egra.de/english.htm

High Voltage Connection
- Sales representative for high voltage power supplies and other high voltage products. The site includes technical articles on high voltage.
- http://www.highvoltageconnection.com

Keltron High Voltage Power Supplies
- Manufacturer of high voltage OEM Power Supplies for a range of applications.
- http://www.custompowersystem.com/

Iseg High Voltage
- Manufacturers of high voltage power supplies for industry and research applications.
- http://www.iseg-hv.com

ELDEC Corporation
- Designers and manufacturers of low voltage and high voltage power supplies for military and aerospace, CRT and AMLCD display applications.
- http://www.craneae.com/about_us/eldec.htm

Hitek Power
- Supplies high voltage power supplies, EHT power supplies laser printer power supplies, ink jet printer power supplies and a range of other heavy duty power supplies.
- http://www.hitekpower.com/

Genvolt
- Manufacturer of high voltage power supplies with output voltages starting from a few hundred volts and extending to 300kV, and power levels from a few watts to over 30kW.
- http://www.genvolt.co.uk/

Gamma High Voltage Research, Inc.
- Designs and manufactures high voltage DC power supplies. Standard products range from miniature 1 watt, PCB mountable modules, to multi kilowatt, rack mountable assemblies. Voltage ratings range up to 500kVdc
- http://site.yahoo.com/gammahighvoltage/

Directed Energy, Inc.
- High voltage pulse generators, pulsers, modulators and pulsed voltage sources
- http://www.directedenergy.com/

Guiding Light Technology
- DC input high voltage power supply modules.
- http://glhitek.com

Xcel Power Systems
- Manufacturers of custom low voltage and high voltage power supplies primarily for military, aerospace and transport markets.
- http://www.xcelpower.com

Polarity Inc.
- Designs and fabricates high power products including industrial high voltage power supplies, solid state RF amplifiers, ultra low noise TWT, CFA, and Klystron microwave amplifier systems.
- http://www.polarity.net

Virtual Technologies, Ltd.
- Designs and manufactures customized AC-DC and DC-DC power supplies, from 500V to 120kV and up to 10kW in power.
- http://www.virtualtechnologiesltd.com/Power_Supplies/custom_engineered_power_supplies.htm

Technix
- Manufacturers of high voltage DC power supplies to provide national laboratories, technical institutes, universities and industry.
- http://www.technix-hv.com

EMCO High Voltage Corporation
- Miniature DC to HV DC converters, multi-output, rack mount high voltage systems. Small HV power supplies.
- http://emcohighvoltage.com/

Computer Power Supply, Inc.
- Designs and manufactures high voltage power supplies, used for focused electron beam and focused ion beam applications. Online catalogue, pricing and data sheets.
- http://www.cpshv.com/

Applied Kilovolts
- Designs and produces power supplies primarily in the range from 1kV to 60kV.
- http://www.appliedkilovolts.com/

Universal Voltronics
- Designs and manufactures high voltage DC power supplies, specializing in high power (over 1kW) and high voltage (over 1kV) applications.
- http://www.voltronics.com/

American High Voltage
- Provides high voltage power supplies for government and commercial applications.
- http://www.ahv.com

UltraVolt, Inc.
- Manufacturer of off-the-shelf modular and rack mount programmable DC to DC high voltage power supplies, from 62V through 40kV and 4 Watts to 250 Watts.
- http://www.ultravolt.com

Meerstetter Engineering, GmbH
- Designer, developer and manufacturer of power electronics, laser power supplies, and high voltage transformers.
- http://www.meerstetter.ch/

Matsusada Precision Inc.
- High voltage power supplies. Integrated HVPS and X-ray tube.
- http://www.matsusada.com/index.html

Kaiser Systems, Inc.
- Manufacturer of capacitor chargers, DC high voltage power supplies, X-ray supplies, laser diode drivers, custom design and off-the-shelf systems.
- http://www.kaisersystems.com/

Diversified Technologies, Inc.
- High voltage and high power solid-state switching power supplies, pulse modulators, and control systems
- http://www.divtecs.com/

Glassman High Voltage Inc.
- Manufacturer of regulated high voltage dc power supplies.
- http://www.glassmanhv.com/

Brandenburg HV Power Supplies
- Manufacturer of standard and custom built high voltage power supplies. Some HV testing equipment.
- http://www.brandenburg.co.uk/

Spellman High Voltage
- Designs and manufactures high voltage power supplies up to 500kV and 150kW. Brands include Bertan and Del.
- http://www.spellmanhv.com