Adelphi, fa. board member • from 1950 until 1959 |
De Roskam NV board member • from 1951 until 1961 |
DLS Film Holland (Rotterdam) board member • from 1958 |
Maatschappij voor Cinegrafie NV (Amsterdam) board member • from 1961 until 1969 |
Roskam • Den Haag general management • from 1949 until 1950 |