About VSL

As the Netherlands’ national metrology institute (NMI), VSL makes measurement results of companies, laboratories and institutions directly traceable to international standards SI units. Through providing services including calibrations, consultancy, reference materials, interlaboratory comparisons and training courses, VSL makes an important contribution to the dependability, quality and innovation of products and processes in commerce and society.

TNO Companies is VSL’s shareholder. By commission of the Dutch government, VSL manages and develops the national measurement standards. VSL is a private company with a public task.

VSL hallmarks

  • internationally authoritative measurement institute
  • management and development of the Netherlands’ national measurement standards
  • high-tech laboratories
  • operates on the interface between science and industry


Thijsseweg 11, 2629 JA, Delft

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