Executive Board
Mr A.G.J. (Ton) Hillen (1961)
Chairman of the Executive Board, CEO
Dutch. Mr. Hillen was appointed as a member of the Executive Board of Heijmans N.V. on 18 April 2012, reappointed on 13 April 2016 and appointed as CEO on 1 December 2016. He has held various positions at Heijmans since 1992 and was appointed Director of Property Development and Residential Building at Heijmans in 2008. Prior to joining Heijmans, Mr. Hillen was employed at BAM and Anton Obdeijn Project development. Ancillary position: Member of the Supervisory Council of the Noord Brabants Museum and member of the Management Board of Bouwend Nederland.
Mr G.M.P.A. (Gavin) van Boekel (1975)
member of the Executive Board, CFO
Dutch. Mr Van Boekel was appointed as a member of the Executive Board/CFO of Heijmans N.V. on 1 September 2021. Prior to joining Heijmans, he held various financial positions at Unilever for more than 21 years. Ancillary positions: Member and from 2020 Chairman of the Curatorium of the Executive Master Finance & Control (‘Registercontrollers Opleiding’) at the VU University of Amsterdam, member of the Advisory Board of the Dutch Association of Registered Controllers, member of the Advisory Board of the School of Accounting at the VU University of Amsterdam.
Supervisory Board
Mr Sj.S. (Sjoerd) Vollebregt (1954), Chairman
Dutch. Mr. Vollebregt was formerly Chairman of the Executive Board of Stork B.V. and Fokker Technology B.V. Prior to that, Mr. Vollebregt was employed at companies including Exel, Ocean, Intexo Holding and Royal Van Ommeren. He was appointed as a member of the Supervisory Board of Heijmans N.V. in April 2015, appointed as Chairman in 2016, reappointed in 2019 and reappointed for two years in 2023. He is due to step down in 2025. Principal additional positions: Chairman of the Supervisory Board of Fugro N.V. and Chairman of the Economic Board of Drechtsteden.
Ms M.M. (Martika) Jonk (1959), Vice-chair
Dutch. Ms. Jonk qualified as a lawyer in 1986 and until 1 January 2024 was a senior counsel at CMS Derks Star Busmann. She was appointed as a member of the Supervisory Board of Heijmans N.V. in December 2018 for a term of more than four years, reappointed for four years in 2023. She is due to step down in 2027. Principal additional positions: member of the Supervisory Board of HES International B.V., member of the Supervisory Council of Catharina hospital in Eindhoven.
Ms J.W.M. (Ans) Knape-Vosmer (1962)
Dutch. Senior Vice President HR&O Global Operations | Enabling Functions | Strategic Sourcing & Procurement at ASML. She was appointed as a member of the Supervisory Board of Heijmans N.V. in April 2020. She is due to step down in 2024. Principal additional positions: member of the Supervisory Board of Royal Douwe Egberts B.V.
Mr A.E. (Arnout) Traas (1959), chairman of the Audit and Risk committee
Dutch. From mid-2011 to April 2020, Mr. Traas was CFO at ForFarmers N.V. Prior to this, he worked at FrieslandCampina for 10 years, as well as at a number of other companies, including Arthur Anderson, Mars, H.C.S, G.T.I. Holding and Vendex/KBB. He was appointed as a member of the Supervisory Board of Heijmans N.V. on 14 April 2021. He is due to step down in 2025. Principal additional positions: Chairman of the Supervisory Board of ABAB, chairman of the Supervisory Board of Vreugdenhil Dairy Foods, coordinator of Next Generation CFO course at the VU and chair of the advisory board for the Executive Master of M&A and Valuation at VU and RUG.
Mr A.S. (Allard) Castelein (1958)
Dutch. Until mid-2023, Chief Executive Port of Rotterdam. Appointed as a member of the Supervisory Board of Heijmans N.V. on 12 July 2022. Due to step down in 2026. Principal additional positions: non-executive director at Renewi Plc, non-executive director at ABP (Associated British Ports), chairman of the Supervisory Board of the Erasmus Trust Fund, chairman of the Supervisory Board of the Rotterdam Philharmonic Orchestra, chairman of the Board of Ronald McDonald House Sophia Rotterdam, member of the Supervisory Board of the International Architecture Biennale Rotterdam.