Over 70 Romanian physicists and engineers work on CERN projects. The National Institute of Physics and Nuclear Engineering Horia Hulubei officially participates in three LHC experiments (ATLAS, ALICE and LHC-b), in the construction of detectors and preparation of data analysis. A group of scientists and students of the Politehnica University of Bucharest is involved in the advanced development of information technology at CERN. Prestigious scientific Romanian institutions such as the Institute for Space Sciences, Institute of Isotopes and Molecular Technology, and the University of Bucharest also contribute to fundamental physics experiments at CERN.
- 1991 - first Agreement, ensuring the necessary framework for the participation of Romanian research and industry in CERN programs
- 2002 - the Agreement of cooperation was signed between the Government of Romania and CERN referring to the future development of scientific and technical cooperation within the research projects
- 2004 - the establishment of the National committee Romania - CERN, which coordinates the development of collaboration between Romanian research institutions and CERN
- 2006 - the Memorandum of Understanding for collaboration in the deployment and exploitation of the Worldwide LHC Computing Grid was signed; Romania participates with a Tier-2 center in the WLCG collaboration.
- 2010 - the Agreement that formally recognises Romania as a candidate for accession to membership of CERN.