Umbrex is pleased to welcome Mortimer von Plettenberg.  Mortimer von Plettenberg, a lawyer by background, started his career as an Associate in McKinsey’s Hamburg office. Focusing on operations transformation and restructuring projects, he left as an Engagement Manager five years later to co-found a non-profit educational start-up: Teach First Deutschland places bright graduates of all backgrounds in underprivileged schools to improve educational equity. Having to take care of the family forestry business in Western Germany, Mortimer stepped down as CEO…