Day-to-day management of DELTA and CAIW is the responsibility of the group management. The board consists of Marco Visser (CEO), Huib Costermans (CFO), Albert Vergeer (CCO CAIW), Ludolf Rasterhoff (CCO DELTA Telecom), Roel Meijerink (CCO DELTA Energie), Michiel Admiraal (Business Development) and John Wittekamp (Group CTO).