Internal Organization of CERN, 2020-

1955-1959 1960-1969 1970-1979 1980-1989 1990-1999 2000-2009 2010-2019 2020-….

2020	Director-General: F. Gianotti

DG Units

Internal Audit: J. Steel

Legal Service: E. M. Gröniger-Voss

Translation, Minutes and Council Support: J. Pym

HSE	Occupational Health & Safety and Environmental Protection Unit (HSE): D. Forkel-Wirth

International Relations Sector (IR): C. Warakaulle Strategic Planning and Evaluation Protocol office Secretariat
Stakeholder relations Host States relations Member States relations Non-Member States relations Relations with International Organizations Partnerships and fundraising	Education, Communication and Outreach (ECO) Editorial content development Exhibitions & Globe Engagement Media and Press relations Teacher and Student programmes Visitors and local engagement Audiovisual production service Design & visual identity service

Research and Computing Sector (RCS): E. Elsen PRJ – Projects SIS – Scientific Information Service
EP	Experimental Physics Department	M. Krammer
TH	Theoretical Physics Department	G. Giudice
IT	Information Technology Department	F. Hemmer

Accelerators and Technology Sector (ATS): F. Bordry DO – AT Directorate Office
BE	Beams Department	P. Collier
TE	Technology Department	J.M. Jiménez
EN	Engineering Department	R. Losito

Finance and Human Resources Sector (FHRS): M. Steinacher
FAP	Finance and Administrative Processes Department	F. Sonnemann
IPT	Industry, Procurement and Knowledge Transfer Department	T. Lagrange
HR	Human Resources Department	J. Purvis
SMB	Site Management and Buildings Department	L. Miralles

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2021	Director-General: F. Gianotti

DG Units

Internal Audit: A. Glaser

Legal Service: K. Baxter

Translation, Minutes and Council Support: J. Pym

HSE	Occupational Health & Safety and Environmental Protection Unit (HSE): B. Delille

International Relations Sector (IR): C. Warakaulle Office of the Director Secretariat
Diplomatic and stakeholders relations Alumni relations Host States relations Associate and Non-Member State relations Relations with International Organizations Partnerships and fundraising Protocol	Education, Communication and Outreach (ECO) Community engagement Editorial content production Exhibitions Press and digital content Teacher and Student programmes Visitors and events operations

Research and Computing Sector (RCS): J. Mnich PRJ – Projects SIS – Scientific Information Service
EP	Experimental Physics Department	M. Krammer
TH	Theoretical Physics Department	G. Giudice
IT	Information Technology Department	F. Hemmer / E. Porcari

Accelerators and Technology Sector (ATS): M. Lamont DO – AT Directorate Office
BE	Beams Department	R. Jones
TE	Technology Department	J.M. Jiménez
EN	Engineering Department	K. Foraz
SY	Accelerator Systems Department	B. Goddard

Finance and Human Resources Sector (FHR): R. Bello
FAP	Finance and Administrative Processes Department	F. Sonnemann
IPT	Industry, Procurement and Knowledge Transfer Department	T. Lagrange / C. Hartley
HR	Human Resources Department	J. Purvis
S CE	Site and Civil Engineering Department	M. Capeans

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2022	Director-General: F. Gianotti

DG Units

Internal Audit: C. Spencer

Legal Service: K. Baxter

Translation, Minutes and Council Support: J. Pym

HSE	Occupational Health & Safety and Environmental Protection Unit (HSE): B. Delille

International Relations Sector (IR): C. Warakaulle Office of the Director Secretariat
Diplomatic and stakeholders relations Alumni relations Host States relations Associate and Non-Member State relations Relations with International Organizations Partnerships and fundraising Protocol	Education, Communication and Outreach (ECO) Community engagement Editorial content production Exhibitions Press and digital content Teacher and Student programmes Visitors and events operations

Research and Computing Sector (RCS): J. Mnich PRJ – Projects SIS – Scientific Information Service
EP	Experimental Physics Department	M. Krammer
TH	Theoretical Physics Department	G. Giudice
IT	Information Technology Department	E. Porcari

Accelerators and Technology Sector (ATS): M. Lamont DO – AT Directorate Office
BE	Beams Department	R. Jones
TE	Technology Department	J.M. Jiménez
EN	Engineering Department	K. Foraz
SY	Accelerator Systems Department	B. Goddard

Finance and Human Resources Sector (FHR): R. Bello
FAP	Finance and Administrative Processes Department	F. Sonnemann
IPT	Industry, Procurement and Knowledge Transfer Department	C. Hartley
HR	Human Resources Department	J. Purvis
S CE	Site and Civil Engineering Department	M. Capeans

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2023-2025

Director-General: F. Gianotti

DG Units

Internal Audit: C. Spencer

Legal Service: K. Baxter

Translation, Minutes and Council Support: J. Pym

HSE	Occupational Health & Safety and Environmental Protection Unit (HSE): B. Delille

International Relations Sector (IR): C. Warakaulle Office of the Director Secretariat
Diplomatic and stakeholders relations Alumni relations Host States relations Associate and Non-Member State relations Relations with International Organizations Partnerships and fundraising Protocol	Education, Communication and Outreach (ECO) Community engagement Editorial content production Exhibitions Press and digital content Teacher and Student programmes Visitors and events operations

Research and Computing Sector (RCS): J. Mnich PRJ – Projects SIS – Scientific Information Service
EP	Experimental Physics Department	M. Krammer
TH	Theoretical Physics Department	G. Giudice
IT	Information Technology Department	E. Porcari

Accelerators and Technology Sector (ATS): M. Lamont DO – AT Directorate Office
BE	Beams Department	R. Jones
TE	Technology Department	J.M. Jiménez
EN	Engineering Department	K. Foraz
SY	Accelerator Systems Department	B. Goddard

Finance and Human Resources Sector (FHR): R. Bello
FAP	Finance and Administrative Processes Department	F. Sonnemann
IPT	Industry, Procurement and Knowledge Transfer Department	C. Hartley
HR	Human Resources Department	J. Purvis
S CE	Site and Civil Engineering Department	M. Capeans

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2026	Director-General: M. Thomson

CIO

Chief Information Officer

E. Porcari

Research and Computing Sector (RCS): G. Hamel de Monchenault
EP	Experimental Physics Department	G. Lehmann
TH	Theoretical Physics Department	U. Wiedemann
IT	Information Technology Department	S. Campana

Accelerators and Technology Sector (ATS): O. Bruning
BE	Beams Department	M. Meddahi
TE	Technology Department	R. Jones
EN	Engineering Department	S. Atieh
SY	Accelerator Systems Department	R. Losito

Finance and Human Resources Sector (FHR): JP. Brouwer
FAP	Finance and Administrative Processes Department	K. Pokorska
IPT	Industry, Procurement and Knowledge Transfer Department	G. Anelli
HR	Human Resources Department	L. Van Den Boogaard

Site Operations Sector (SO): M. Capeans Audit and Investigations Service (AIS): C. Spencer Legal Service (LS): K. Baxter Internal Justice Secretariat (IJS): A. Hahnel-Borgeaud
HSE	Occupational Health and Safety and Environmental Protection Department	B. Delille
OSI	Organisational Support and Improvement Department	A. Kohls
S CE	Site and Civil Engineering Department	C. Garino

Stakeholder Relations (SR): U. Bassler

Stakeholder Engagement (SE): J. Purvis
Education, Communications and Outreach (ECO): A. Marsollier