Houthoff Buruma advised Dümmen Orange on the acquisition of the Calla business of Golden State Bulb Growers Inc. and G. Geerlings & Zonen B.V. and the Calla breeding Sande companies. Pursuant to this series of acquisitions, Dümmen Orange was able to create establish a global leader in Calla breeding.

Houthoff Buruma team included: Bram Caudri , Joram van den Berg , Luke van de Laar , Josephine de Bok , Cherlene Blankson , Jasmijn Harms , Tessa Rozendal , Jessica den Dekker , Ivar Brouwer , Anna Wijnans , Fabienne Renes , Thijs Poelert