Universiteit Leiden

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Anthony van Raan

Prof.dr. A.F.J. van Raan
+31 71 527 2727


Prof. Ton (A.F.J.) van Raan is Professor of Quantitative Studies of Science. Founder and until 2010 Director of the Centre for Science and Technology Studies (CWTS), Leiden University, Netherlands. After his retirement as CWTS Director, he remained research professor. He studied mathematics, physics and astronomy at Utrecht University. PhD in Physics, Utrecht. Post-doctoral fellow at the University of Bielefeld (Germany), visiting scientist in the US, UK, and France. Work in atomic and molecular physics, laser-physics and astrophysics. From 1977 senior research fellow physics in Leiden, in 1985 'field switch' to science and technology studies, 1991 Professor. He published (as author and co-author) around 30 articles in physics and 200 in science and technology studies. Prof. van Raan set up a small company Science Consult for advice on research evaluation and science policy issues.

Research by Ton van Raan

His research focus: application of bibliometric indicators in research evaluation; science as self-organizing complex system, statistics of bibliometric indicators, ranking and benchmarking of universities, mapping of science.


In 1995 he received, together with the American sociologist Robert K. Merton, the Derek de Solla Price Award, the highest international award in the field of quantitative studies of science. On the occasion of his retirement as CWTS director he was awarded by the Queen of the Netherlands with the royal distinction of Knight in the Order of the Dutch Lion.

  • Faculteit der Sociale Wetenschappen
  • CWTS

Work address

Pieter de la Court Building
Wassenaarseweg 52
2333 AK Leiden



  • CWTS bv statutair directeur