LDS Leak Detectors
Rents new and rebuilt helium leak detectors and systems. Also provides spare parts and vacuum components.
http://www.lds-vacuum.com

Vacuum Instrument Corporation
Vacuum Instrument Corporation offers portable, console and fully automated leak-test solutions with ongoing applications support.
http://www.vacuuminst.com/

Invest Electronics
Manufacturer of combustible gas detectors, refrigerant leak detectors, and other electronic devices.
http://www.investelectronics.com/

Ion Science
Ion Science
http://www.ionscience.com/

Husini Engineers
Manufacturer of toxic gas leak detector like chlorine, ammonia and combustible gases, and analysers for chlorine, ammonia and combustible gases
http://angelfire.com/ia/husainiengineers/

GOW-MAC Instrument Co.
Manufacturer of gas chromatographs, GC detectors, and analyzers for moisture, aromatic hydrocarbons, total hydrocarbons, binary gas and leak detectors. European and Asian offices, with HQ in Bethlehem, Pennsylvania.
http://www.gow-mac.com/

Löwener Vacuumservice
We build helium leak test machines, helium leak detection systems and special helium leak detectors
http://www.lowener.se/e/

ATEQ
Worldwide leader in leak test and flow testing and TPMS Tools.
http://www.ateq.ca

A-VAC Industries
A-VAC Industries, Inc. since 1969: Quality vacuum pumps, chambers, Vacuum pump systems for sales, vacuum pump repairs or rebuilt pumps and services. We are authorized distributors of Welch, Leybold and Alcatel Vacuum Products. Call 800-747-2821 now.
http://www.avac.com/

Husaini Engineers
Toxic Gas Leak Detector for combustible gases such as Chlorine and Ammonia provides audible alarm & visual indication of gas leak monitor status. Easy to install & lightweight
http://husainiengineers.com