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Supervisory Board

Ronald Langeveld

Chairman of the Supervisory Board is Ronald Langeveld, also representing the interests of Vitol Insurance BV as shareholder in DUPI. Ronald is Insurance Manager of Vitol Group and Director of Vitol Insurance BV.

Vitol is an energy and commodities trading company. Today it has 40 offices worldwide and its largest operations are in Bahrain, Geneva, Houston, London, Rotterdam and Singapore.

Vitol was one of the founding shareholders of DUPI in 1988.


Ronald Latenstein van Voorst

Since 2017 Ronald is CEO of Sailfish Management. Ronald has CEO and CFO experience at various listed and non-listed companies, amongst others he was CFO and CEO of Dutch bank/insurance company SNS REAAL.

Ronald also holds Supervisory Board positions at various listed and non-listed companies.

Ronald’s experience and expertise include M&A and investment banking, Private Equity, Investment and Asset Management, strategic and general management and (international) insurance and Fintech (China and Asia).


Karl-Christian Hertenberger

Since 2017 Karl-Christian is Managing Director of Onestone Investments UG.

Karl-Christian is a seasoned insurance industry veteran and holds Engineering degrees (Dipl.-Ing.) from the Fachhochschule Munchen and the Technical University Berlin.

From 2014 until end 2016 Karl-Christian was board member at HDI Verzekeringen NV in Rotterdam and before that amongst others Global Engineering Leader at HDI-Gerling Industrieversicherung AG (2008 – 2014) and Head of Marine and Engineering at HDI Versicherung AG (2003 – 2007).

Previous assignments of Karl-Christian include Managing Director of Albingia Versicherung AG, Regional Branch Office North, Hamburg (1996 – 2000) and Managing Director of AXA Versicherung AG, Branch Office South, Munich (2000 – 2003).