Founded in 1997, Markes International is the world leader in technology for analytical thermal desorption for gas chromatography – technology that samples and concentrates trace-level volatile organic compounds prior to injection into a gas chromatograph.

In addition to instrumentation, Markes manufactures and markets a comprehensive range of sampling accessories and consumables for detecting organic chemicals in air, liquids and solids.

The profile of the business as a whole was recognised in 2019 by a Queen’s Award for Excellence (International Trade & Innovation). In addition, in 2017 its automated air-monitoring systems were officially endorsed by the Chinese Ministry of Environmental Protection – a rare accolade for products not manufactured in China, and testament to the dedication of Markes’ staff in developing this key market for analytical instrumentation.