Successors of J. Janssonius. His son-in-law (Janssonius) van Waesberghe (? - 1681) carried on the publishing company with other members of the family. The 'Atlas Contractus' was published 1666. The plates of this atlas passed to G. Valk about 1695 and later on to the publishing company Ottens. The plates of the views and town plans of Janssonius acquired F. de Wit and later on Covens & Mortier.