Hillary Ziegenhagen

Senior Vice President, Head of Digital Strategy
Prosek Partners

With more than 13 years of experience in digital marketing and strategic communications, Hillary Ziegenhagen oversees Prosek’s digital practice, leading the creation and execution of digital strategy firm-wide.

Prior to her role at Prosek, Hillary spent four years building the digital practice at Mercury Public Affairs where she managed social media marketing, digital advertising, crisis communications, and digital advocacy for high-profile business and political leaders. Previously, Hillary oversaw digital brand-building programs including social strategy and global community development, strategic blog and influencer partnerships, and the development of original branded content for a variety of B2B and B2C clients.

Hillary received a Master of Science degree in Integrated Marketing from New York University and a Bachelor of Arts in Sociology from the same institution.