The company ELIS PLZEN a. s. belongs between one of the prominent producers of ultrasonic and induction flow meters and heat meters in water and steam. The company was founded in 1990 and in 1997 transformed into Joint Stock Company. Main part of its product range is produced on bases of own know-how which is protected by several patents. ELIS PLZEN a. s. is the only one producer of ultrasonic flow meters of liquids in the Czech Republic and belongs between several worldwide companies which have managed difficult technology of the production of these devices. The company delivers its products especially to water industry, heat industry, power industry and various kinds of industries for example to chemical and food industry. The products of ELIS PLZEN a. s. are interesting for customers especially for their high technical quality, reasonable prices, provided service and flexibility of requirement satisfaction of non - standard requirements. The company has also own R&D department and there is very effective cooperation with experts from University of West Bohemia on the field of industrial R&D too. The company continues in development of new products and usually every two years presents new products on the market which satisfy requirements of a large group of customers. The company is endowed with several test rigs and the biggest one has considerable parameters - calibration and metrological verification of flow meters from DN 32 to DN 800 and the maximum rate of flow could be 2 200 m3/h. Main part of the production range is exported to the world wide countries. The company also consecutively expands business activities into other countries and there searches for convenient distributors.