Simon Preisenberger joined Watson, Farley & Williams as a partner in 2008. Previously, he worked for the German multidisciplinary firm Haarmann Hemmelrath where he was promoted to partnership in 2001. With other partners, he founded the boutique lawfirm Oldenbourg Plus in 2005 which merged with Watson, Farley & Williams in 2008. Simon Preisenberger specialises in private equity, M&A and corporate law. In particular, he advises German and international private equity funds on transactions in the mid-cap sector, JUVE Handbook 2011/2012 says he is a "frequently recommended lawyer" for private equity and venture capital.