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RIPE NCC Leadership

Hans Petter Holen

Hans Petter Holen is the RIPE NCC Managing Director.

The Managing Director of the RIPE NCC is responsible for the day-to-day operation of the organisation in line with the strategy approved by the Executive Board. He attends meetings of the Executive Board as set out in the Articles of Association.

The Managing Director serves on the Executive Council of the Number Resource Organization (NRO), which is the coordinating body for the world’s Regional Internet Registries (RIRs).

Email Hans Petter


Daniella Coutinho

Daniella Coutinho is the Executive Assistant to the Managing Director and coordinates activities for the Executive Board.

Athina Fragkouli

Athina Fragkouli is the Chief Legal Officer.

She is responsible for the RIPE NCC's legal affairs and relevant risks to the organisation, including:

  • RIPE NCC legal and regulatory compliance
  • RIPE NCC corporate governance
  • RIPE NCC legal matters related to Internet governance, public policy, national authorities and law enforcement agencies (LEAs)
  • Legal impact analysis as part of the RIPE Policy Development Process (PDP) and technical discussions

Email Athina


Simon-Jan Haytink is the Finance Manager.

He is responsible for controlling and managing the RIPE NCC's financial resources within its risk appetite. This includes ensuring that all financial transactions, systems and procedures comply with regulations, accounting principles and standards.

Hisham Ibrahim

Hisham Ibrahim is the Chief Community Officer.

He is responsible for managing and leading the External Engagement and Community budget and activities.

External Engagement and Community consists of:

  • Community building and member engagement
  • Community learning and development
  • Community coordination and collaboration

Email Hisham


Kaveh Ranjbar

Kaveh Ranjbar is the Chief Information Officer.

He is responsible for managing and leading the Information Services budget and activities.

Information Services consists of:

  • DNS and K-Root
  • RIPE Atlas
  • RIPEstat
  • RIS
  • Research
  • IT support
Regina Serrão

Regina Serrão is the Facility Manager.

She is responsible for the RIPE NCC’s internal administrative functions along with the rent and maintenance of all facilities and equipment. Activities in this area support efficient and centralised administrative services and provide a secure, healthy and productive environment for RIPE NCC staff.

Felipe Victolla Silveira

Felipe Victolla Silveira is the Chief Operations Officer.

He is responsible for managing and leading the Registry budget and activities.

The Registry consists of:

  • Registration of IP addresses and ASNs
  • Processing of Registry updates
  • Membership administration
  • Registry accuracy and investigations
  • LIR Portal
  • RPKI
  • RIPE Database

Email Felipe

Carolien Vos

Carolien Vos is the HR Director.

She is responsible for developing and implementing the organisation's human resources strategy so that the organisation attracts, develops and retains the employees it needs to achieve its current and future business objectives.

Email Carolien

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Eleonora Petridou is the Chief Information Security Officer (CiSO)

The CISO is responsible for ensuring that the RIPE NCC maintains necessary levels of Information security and compliance with best practices and applicable regulations.