They supply instruments for gas leak detection in refrigeration, air conditioning, the automotive industry and for the analysis and identification of toxic chemicals.

INFICON has subsidiaries in China, Denmark, Finland, France, Germany, Italy, Japan, South Korea, Liechtenstein, Malaysia, Mexico, Singapore, Sweden, Switzerland, Taiwan, the United Kingdom and the United States.

Formed in 1994, Balzers and Leybold Holding AG became the world's largest vacuum and surface technology company as a result of this purchase.

On November 9, 2000, INFICON joined the Nasdaq and SIX Swiss Exchange with a public offering under the ticker symbol "IFCN".

[12][13][14][15][16][17] In February 2005, INFICON delisted its stock from Nasdaq, but continues to trade on the SIX Swiss Exchange to this day.