Serial entrepreneur and writer of management books. Initially Leen was an accountant, but after founding the company Bolesian he became an entrepreneur. From then on he led several companies and was president of RCC (Roccade) and chairman of the board of Origin. In 2000 he founded Escador, which developed from an internet power house to a growth accelerator. For management boards of large corporations he and his team function as a think tank, source of feedback, coach and initiator. His book En Nu Laat Ik Mijn Baard Staan (And Now I Let My Beard Grow Long) was a hit seller in the Netherlands. Some more info (in Dutch):