Western Gasco Cylinders Ltd.
- Canadian distributor of industrial, medical and specialty gases, as well as safety products and welding equipment.
- http://www.westerngasco.com

Spiritus Consulting
- Provides consulting services to the industrial gas industry with an emphasis on developing countries, offering seminars, financial and regional reports, and advice.
- http://www.spiritusgroup.com

Cryotec Anlagenbau GmbH
- Company in Germany offering design, installation, and services related to industrial gas manufacture and machinery, including CO2 recycling, cryogenic and adsorption separation plants, and refrigeration.
- http://www.cryotec.de

Gasworld
- Industrial gas directory and portal, with listings of suppliers by products offered, a trading page with products sought and offered, and online calendar and magazine.
- http://www.gasworld.com

Messer Tehnogas AD
- Yugoslavian division of German company Messer Griesheim, operating several industrial and specialty gas production facilities throughout the country.
- http://www.tehnogas.co.yu

Universal Industrial Plants Manufacturing Company
- Manufactures air separation plants and generators for nitrous oxide, carbon dioxide, and acetylene gases. Located in India, products sold under Boschi brand.
- http://www.oxygengasplant.net

Uralkriotechnica
- Manufacturer of air separation units, dewars, vaporizers, storage tanks, drying units, and manifolds, for use with industrial gases in liquified and gaseous forms.
- http://cryo-tech.narod.ru/evfirma.htm

Specialty Fitters, Inc.
- Specialized mechanical piping contractor providing high pressure and liquid cryogenic gases, piping systems design, equipment and service, for industrial, medical and high purity semiconductor-grade applications. Based in Cleveland, Ohio, USA.
- http://www.specialtyfitters.com

Innovative Gas Systems (IGS)
- Industrial gas supplier of on-site nitrogen, hydrogen, and oxygen gases utilizing membranes, pressure swing adsorption, and other air separation technologies.
- http://www.igs-global.com

Mittler Supply
- Manufacturer of industrial and specialty gases and welding supplies in Chicago, Illinois, and South Bend and Muncie, Indiana.
- http://www.mittler.com/

Daesung Sanso Co., Ltd.
- Produces industrial gases, specialty gases for semiconductors, ultra high purity gases, standard gases, precise gas mixtures, medical gases, and gas equipment. Korea.
- http://www.gastopia.co.kr

Cee Kay Supply
- The largest independently owned retailer of industrial gases, welding equipment and supplies in the state of Missouri. Includes description of products and services.
- http://www.ceekay.com/

Universal Industrial Gases Inc.
- Manufactures industrial gas plants and equipment to produce CO2, nitrogen, oxygen and argon as gas or liquid. Offers engineering, construction, operation and maintenance services to customers throughout the world. Headquartered in Easton, Pennsylvania, US
- http://www.uigi.com/

Energas
- Britain's leading independent supplier of industrial cylinder gases, engineering and welding equipment.
- http://www.energas.co.uk/

Union Industrial Gas Group
- Provides repackaged industrial, medical, and specialty gases as well as the distribution of related welding equipment, industrial supplies, welding rental equipment, and repair services. USA.
- http://www.union-gas.com

Toll Gas and Welding Supply
- Complete source for industrial, rare and specialty gases and welding equipment and supplies. Bulk gases and storage systems.
- http://tollgas.com/

Les Gaz Industriels Ltd
- Mauritius Company producing oxygen and acetylene for metal cutting and welding purposes.
- http://www.gaz-industriels.com

Inweld Corp.
- Full line distributor of welding supplies and industrial gases specializing in high purity research gases and mixtures.
- http://www.inweld.com

Ingasco Incorporated
- Industrial gas manufacturer of oxygen, nitrogen, argon, compressed air, and acetylene. Philippines.
- http://www.ingasco.com

Holston Gases, Inc
- A full service industrial and medical gas distributor with a complete line of welding and industrial supplies, located in Tennessee.
- http://www.holstongases.com

A-Gas International Plc
- A specialist blender, re-packer and distributor of environmentally acceptable replacements for chloro-fluoro-carbons (CFC's), used primarily as refrigerants, foam blowing agents, aerosol propellants and solvents.
- http://www.agas.com/

Linde Gas
- Produces and supplies industrial and medical gases worldwide with offices in over 50 countries.
- http://www.linde-gas.com/

Air Liquide
- Major international producer and distributor of cryogenic liquids and gases, plus specialized services in medical gases, food services, electronics, and other industries. Locations in 60 countries.
- http://www.airliquide.com/

Airgas, Inc.
- Distributor of industrial, medical and specialty gases as well as a comprehensive product line of safety products, welding equipment, specialty tools, and MRO products.
- http://www.airgas.com/

Air Products and Chemicals, Inc.
- A worldwide supplier of industrial gases and equipment, specialty and intermediate chemicals, and environmental and energy systems. Offices in 30 countries.
- http://www.airproducts.com/

Matheson TRIGAS
- Supplier of bulk and cylinder gases for the industrial, medical, electronic and welding markets. In Irving, Texas.
- http://www.trigas.com/

Praxair
- One of the largest industrial gases companies worldwide, producing and researching atmospheric, process and specialty gases and cryogenic liquids, and dry ice. Includes a library of safety information, including product MSDS.
- http://www.praxair.com/