1990 | Director-General : C. Rubbia |
| Directorate | Research Director : P. Darriulat Research Director : J. J. Thresher Research Director : W. Hoogland Associate Director for Future Accelerators : G. Brianti Director of Accelerators : G. Plass Director General Office and Secretariat : G. Hentsch Head of Administration : G. Vianès Director for Administration and Technologies Tasks : H. F. Hoffmann |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | R. F. Heyn | |
| Accelerator Technologies | H. Wenninger | |
| Computing and Networks | D. O. Williams | |
| Electronics and Computing for Physics | P. G. Innocenti | |
| Finance | A. J. Naudi | |
| Mechanical Technologies | G. Bachy | |
| Personnel | G. Michel | |
| Particle Physics Experiment | J. V. Allaby | |
| Proton Synchrotron | R. Billinge | |
| SPS + LEP | L. R. Evans | |
| Technical Support | F. A. Ferger | |
| Theoretical Physics | J. R. Ellis | |
| Technical Inspection and Safety Commission | K. Potter |
1991 | Director-General : C. Rubbia |
| Directorate | Research Director : P. Darriulat Research Director : J. J. Thresher Research Director : W. Hoogland Associate Director for Future Accelerators : G. Brianti Director of Accelerators : G. Plass Head of Administration : G. Vianès Director for Administration and Technologies Tasks : H. F. Hoffmann |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | R. F. Heyn | |
| Accelerator Technologies | H. Wenninger | |
| Computing and Networks | D. O. Williams | |
| Electronics and Computing for Physics | P. G. Innocenti | |
| Finance | A. J. Naudi | |
| Mechanical Technologies | G. Bachy | |
| Personnel | W. MiddelKoop | |
| Particle Physics Experiment | J. V. Allaby | |
| Proton Synchrotron | K. Hübner | |
| SPS + LEP | L. R. Evans | |
| Technical Support | F. A. Ferger | |
| Theoretical Physics | J. R. Ellis | |
| Technical Inspection and Safety Commission | B. de Raad |
1992 | Director-General : C. Rubbia |
| Directorate | On-going Research : P. Darriulat Future Research : W. Hoogland Future Accelerators : G. Brianti Accelerators : G. Plass Forecast and Planning : C. Roche Informatics : R. Billinge Administration : H. Weber Technical Support : H. F. Hoffmann |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | R. F. Heyn | |
| Accelerator Technologies | H. Wenninger | |
| Computing and Networks | D. O. Williams | |
| Electronics and Computing for Physics | P. G. Innocenti | |
| Finance | A. J. Naudi | |
| Mechanical Technologies | G. Bachy | |
| Personnel | W. Middelkoop | |
| Particle Physics Experiment | J. V. Allaby | |
| Proton Synchrotron | K.Hübner | |
| SPS + LEP | L. R. Evans | |
| Technical Support | F. A. Ferger | |
| Theoretical Physics | J. R. Ellis | |
| Technical Inspection and Safety Commission | B. de Raad |
1993 | Director-General : C. Rubbia |
| Directorate | On-going Research : P. Darriulat Future Research : W. Hoogland Future Accelerators : G. Brianti Accelerators : G. Plass Forecast and Planning : C. Roche Informatics : R. Billinge Administration : H. Weber Technical Support : H. F. Hoffmann |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | J. Ferguson | |
| Accelerator Technologies | H. Wenninger | |
| Computing and Networks | D. O. Williams | |
| Electronics and Computing for Physics | P. G. Innocenti | |
| Finance | A. J. Naudi | |
| Mechanical Technologies | G. Bachy | |
| Personnel | W. Middelkoop | |
| Particle Physics Experiment | J. V. Allaby | |
| Proton Synchrotron | K. Hübner | |
| SPS + LEP | L. R. Evans | |
| Technical Support | F. A. Ferger | |
| Theoretical Physics | J. R. Ellis | |
| Technical Inspection and Safety Commission | B. de Raad |
1994 | Director-General : C. Llewellyn Smith |
| Directorate | Director of Research : L. Foà Research and Technical Director : H. Wenninger Director of Accelerators K. Hübner LHC Project Leader : L. R. Evans Director of Administration : M. Robin Directorate Services Unit |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | J. Ferguson | |
| Accelerator Technologies | J. P. Gourber | |
| Computing and Networks | D. O. Williams | |
| Electronics and Computing for Physics | P. G. Innocenti | |
| Finance | A. J. Naudi | |
| Mechanical Technologies | G. Bachy | |
| Personnel | W. Middelkoop | |
| Particle Physics Experiment | J. V. Allaby | |
| Proton Synchrotron | D. J. Simon | |
| SPS + LEP | K. H. Kissler | |
| Technical Support | F. A. Ferger | |
| Theoretical Physics | G. Veneziano | |
| Technical Inspection and Safety Commission | B. de Raad |
1995 | Director-General : C. Llewellyn Smith |
| Directorate | Director of Research : L. Foà Research and Technical Director : H. Wenninger Director of Accelerators K. Hübner LHC Project Leader : L. R. Evans Director of Administration : M. Robin Directorate Services Unit |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | J. Ferguson | |
| Accelerator Technologies | J. P. Gourber | |
| Computing and Networks | D. O. Williams | |
| Electronics and Computing for Physics | M. Turala | |
| Finance | A. J. Naudi | |
| Mechanical Technologies | G. Bachy | |
| Personnel | W. Middelkoop | |
| Particle Physics Experiment | G. Goggi | |
| Proton Synchrotron | D. J. Simon | |
| SPS + LEP | K. H. Kissler | |
| Technical Support | F. A. Ferger | |
| Theoretical Physics | G. Veneziano | |
| Technical Inspection and Safety Commission | B. de Raad |
1996 | Director-General : C. Llewellyn Smith |
| Directorate | Director of Research : L. Foà Research and Technical Director : H. Wenninger Director of Accelerators K. Hübner LHC Project Leader : L. R. Evans Director of Administration : M. Robin Directorate Services Unit : J. D. Mandica |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | J. Ferguson | |
| Computing and Networks | D. O. Williams | |
| Electronics and Computing for Physics | M. Turala | |
| Engineering Support and Technologies | D. Güsewell | |
| Finance | A. J. Naudi | |
| Large Hadron Collider | J. P. Gourber | |
| Personnel | B. Angerth | |
| Particle Physics Experiment | G. Goggi | |
| Proton Synchrotron | D. J. Simon | |
| SPS + LEP | K. H. Kissler | |
| Technical Support | F. A. Ferger | |
| Theoretical Physics | G. Veneziano | |
| Technical Inspection and Safety Commission | B. de Raad |
1997 | Director-General : C. Llewellyn Smith |
| Directorate | Director of Research : L. Foà Research and Technical Director : H. Wenninger Director of Accelerators K. Hübner LHC Project Leader : L. R. Evans Director of Administration : M. Robin Directorate Services Unit : J. D. Mandica |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | J. Ferguson | |
| Electronics and Computing for Physics | M. Turala | |
| Engineering Support and Technologies | D. Güsewell | |
| Finance | A. J. Naudi | |
| Information Technology | J. May | |
| Large Hadron Collider | J. P. Gourber | |
| Personnel | B. Angerth | |
| Particle Physics Experiment | G. Goggi | |
| Proton Synchrotron | D. J. Simon | |
| SPS + LEP | K. H. Kissler | |
| Supplies, Procurements and Logistics | R. Perin | |
| Technical Support | F. A. Ferger / A. Scaramelli | |
| Theoretical Physics | G. Veneziano / A. de Rujula | |
| Technical Inspection and Safety Commission | H. Schönbacher |
1998 | Director-General : C. Llewellyn Smith |
| Directorate | Director of Research : L. Foà Research and Technical Director : H. Wenninger Director of Accelerators K. Hübner LHC Project Leader : L. R. Evans Director of Administration : M. Robin Directorate Services Unit : J. D. Mandica |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | J. Ferguson | |
| Experimental Physics | G. Goggi | |
| Engineering Support and Technologies | D. Güsewell | |
| Finance | A. J. Naudi | |
| Information Technology | J. May | |
| Large Hadron Collider | J. P. Gourber | |
| Personnel | B. Angerth | |
| Proton Synchrotron | D. J. Simon | |
| SPS + LEP | K. H. Kissler | |
| Supplies, Procurements and Logistics | R. Perin | |
| Technical Support | A. Scaramelli | |
| Theoretical Physics | A. de Rujula | |
| Technical Inspection and Safety Commission | H. Schönbacher |
1999 | Director-General : L. Maiani |
| Directorate | Director of Accelerators K. Hübner LHC Project Leader : L. R. Evans Technical Director : J. May Director for Fixed Target and Future Programmes : C. Détraz Director for Collider Programmes : R. Cashmore Director for Technology Transfer and Scientific Computing : H. Wenninger / H. F. Hoffmann Director of Administration : M. Robin Directorate Services Unit : J. D. Mandica |
| Abbreviations | Divisions | Divisions Leaders |
| Administrative Support | J. Ferguson | |
| Experimental Physics | G Goggi | |
| Engineering Support and Technologies | D. Güsewell | |
| Finance | A. J. Naudi | |
| Information Technology | M. Delfino | |
| Large Hadron Collider | Ph. Lebrun | |
| Personnel | W. Blair / J. van der Boon | |
| Proton Synchrotron | D. J. Simon | |
| SPS + LEP | K. H. Kissler | |
| Supplies, Procurements and Logistics | R. Perin | |
| Technical Support | A. Scaramelli | |
| Theoretical Physics | A. de Rujula | |
| Technical Inspection and Safety Commission | H. Schönbacher |