Alternative Refrigerant Distributors
- Buys, brokers and sells hard commodity items and specializes in industrial and commercial gases and products. Company information and services.
- http://www.ardtrading.com/

Scott-Gross Company, Inc.
- Regional supplier of bulk cryogenic, industrial, medical and specialty gases, propane and dry ice as well as welding equipment and supplies. USA
- http://www.scottgross.com

R.V.Distributors
- Distributor for liquid medical oxygen and nitrous oxide, oxygen therapy and anesthetic equipments, and accessories.
- http://www.rvdgases.com/

WESCO Laboratory Gases
- Distributes industrial, specialty, laboratory and cryogenic gases and equipment in the San Francisco Bay Area.
- http://www.wesco-gas.com/

Prest-O-Sales & Service, Inc.
- A full service distributor of compressed gases and metalworking supplies. Includes directory of manufacturers and products. New York.
- http://www.prest-o-sales.com/

Clinical Air Systems Inc.
- Distributes medical gas and equipment. Phoenix, Arizona.
- http://www.clinicalairsystems.com/

Carbonic Systems
- An authorized distributor of the Tomco Equipment Company offering CO2 and related equipment throughout the North Eastern United States. Covers applications and uses. Elmira, New York.
- http://www.carbonic.com/

Aurum Research Limited
- Distributor of stand-alone oxygen and nitrogen cryogenic coolers and generators. Includes equipment specifications and engineering services. Toronto, Canada.
- http://www.aurumresearch.com/

A-L Compressed Gases
- Distributes calibration gases, regulators, and accessories for portable and fixed systems. Includes products, pricing and online ordering. Portland, Oregon.
- http://www.alcompressedgases.com/