Pascal Technologies, Inc.
- A single source supplier for a large range of vacuum systems and components.
- http://www.pascaltechnologies.com

Advanced Energy
- Innovative power and control technologies that drive high-growth, plasma thin-film manufacturing processes.
- http://www.advanced-energy.com

BOC Edwards
- Provides resources in vacuum, gases, exhaust management and chemical management.
- http://www.bocedwards.com/

Vactek
- The company specializes in industrial, analytical and medical vacuum equipment, distribution and service of vacuum pumps, PD blowers and related maintenance, parts and supplies.
- http://vacuum-pumps.us

Materia Systèmes
- Manufacturer of ion sources, plasma sources, and plasma equipments for surface treatment, thin film deposition, air cleaning.
- http://www.materia.fr/

IntelVac, Inc.
- Supplier of high vacuum products and semiconductor equipment for industrial applications and scientific research.
- http://www.intelvac.com/

GNB Corporation
- High and ultra high vacuum valves, chambers and accessories. GNB is the manufacturer of the world's largest and most dependable vacuum valves, providing standard designs and custom engineering for over 30 years.
- http://www.gnbvalves.com

Oxford Applied Research
- Company manufactures UHV components for MBE and surface science applications. It provides ion sources, atom sources, gas crackers, and evaporation sources.
- http://www.oaresearch.co.uk/

Electron Tubes Ltd.
- Manufacturers of photomultipliers and accessories, packages, light detection solutions and silicon photodetectors.
- http://www.electron-tubes.co.uk/menu.html

Dynapower Corporation
- A leading manufacturer of power conversion equipment. Dynapower is an industry leader in transformer technology, rectifiers, battery formation, anodizing, and other power conversion equipment.
- http://www.dynapower.com/

Stanford Research Systems
- Instruments for Test, Measurement, Research and Analysis. Stanford Research Systems offers a complete line of scientific and engineering test and measurement equipment.
- http://www.thinksrs.com

Insulator Seal Inc.
- Electrical & Optical Ceramic-to-Metal Seal Components for High & Ultrahigh Vacuum Corrosive & Cryogenic Applications
- http://www.isi-seal.com/

Diversified Technologies, Inc.
- Offers switching power supplies and high voltage systems. Core technologies include power electronics, electromagnetics, analog circuit design, instrumentation and test systems, and system integration.
- http://www.divtecs.com/

Tektronix Measurement Home Page
- Oscilloscopes, Logic analyzers, Signal sources, Microwave signal generators.
- http://www.tek.com/Measurement/

A&N Corporation
- A manufacturer of high vacuum flanges, fittings, and chambers.
- http://ancorp.com/

FAST ComTec
- Manufacturer of time-resolved photon counters and nuclear instrumentation.
- http://fastcomtec.com/

Hamamatsu Family
- The Photon is our Business. PMT, CCD, Photodiodes, light sources, systems... Hamamatsu Corporation is a leading manufacturer of devices for generation and measurement of infrared, visible and ultraviolet light.
- http://www.hamamatsu.com/

Sciencetech
- Designers and manufacturers of monochromators, spectrometers, detection systems, and light sources. Specializes in modular optical spectroscopic systems.
- http://www.execulink.com/~scitech/

Saint-Gobain Crystals and Detectors
- Bicron specializes in radiation detection products and high performance crystal optics. X-ray, low energy gamma and neutron detection.
- http://www.bicron.com/

National Instruments
- Computer-Based Measurement and Automation
- http://www.natinst.com

Amptek
- Manufacturer of x-ray and gamma ray detectors, multichannel analyzers, charge sensitive preamplifiers, and spaceflight instrumentation.
- http://www.amptek.com/

Huntington Mechanical Laboratories, Inc.
- Better built vacuum components.
- http://www.huntvac.com/

MKS Instruments
- Instruments, components, and subsystems for vacuum and gas based processes, including manometers, transducers, residual gas analyzers, plasma and power generators, mass flow controllers, helium leak detectors, and digital network products.
- http://www.mksinst.com/

HyVac Products Inc.
- OEM manufacturers of high vacuum pumps and equipment. Precision manufacturing services using computer numerically controlled maching (CNC). Manufacturers of vacuum pumps, gauges, fittings, filters, traps and systems. Most anything related to vacuum pressu
- http://www.hyvac.com/

Kurt J. Lesker Co. Vacuum Products
- Manufacturer and distributor of high-quality vacuum product for all vacuum applications.
- http://www.lesker.com/

Granville-Phillips
- Industry leader in vacuum technology for over 30 years
- http://www.granville.com/

Vaccon Vacuum Products
- Manufacture of pneumatic venturi systems: pumps, material transfer, air amplifiers, and sensors. All products have no moving parts.
- http://www.vaccon.com/

Thermionics Vacuum Products
- Manufacturer of vacuum systems, components and hardware for all vacuum applications including: XYZ manipulators, sample handling devices, motor controllers, valves, feedthroughs, gauges and controls, and flanges.
- http://www.thermionics.com/

MDC Vacuum Products Corporation
- Manufacturer of high and ultra-high vacuum system components, systems and custom engineering.
- http://www.mdc-vacuum.com/

XRF Corporation
- Field portable gamma and X-ray fluorescence spectrometers.
- http://www.xrfcorp.com/

Maxwell Technologies
- Maxwell is made up of businesses that provide both the federal and commercial sectors with scientific and technological products and services.
- http://www.maxwell.com/