Amanda Sheplee is Vice President of Agency Partnerships at Viant, where she leads Viant’s partnerships with the largest holding companies in digital advertising. In this role, she is responsible for developing enterprise-level strategies, building partnership frameworks, securing commercial agreements, and fostering collaborative partnerships that align with each holding company’s priorities.

Before joining Viant, Amanda served as Client & Agency Partnerships and Programmatic Lead at OUTFRONT Media, where she oversaw strategic relationships across WPP and Omnicom, driving exponential revenue growth and trusted partnerships with Fortune 100 global brands.

A seasoned digital advertising leader, Amanda has built a career on creating meaningful, lasting relationships that drive growth and innovation across the media ecosystem. Amanda’s leadership reflects a deep commitment to partnership, innovation, and measurable impact, with a proven track record of helping agencies and marketers thrive in an evolving digital landscape.