John Hennenfent

John Hennenfent joined our DLA Piper Vienna office in July 2022. He is a US-qualified attorney focusing his work on the fields of international trade and EU competition law, as well as other areas of international practice within our Austrian Litigation & Regulatory practice group.

John has advised various large corporates and financial institutions in complex cross-border regulatory issues. This includes transactional compliance for international sanctions, FDI and merger controls across a range of sectors including financial services, technology, energy, and retail.

Prior to joining DLA Piper, he worked for several years as a legislative and policy advisor to industry and senior politicians, notably to Canada’s Leader of the Official Opposition. His public service centered around economic and security policy and issues of public law.