Mary Sullivan

Mary Claire Mandeville heads up Vennli's agency practice. She believes in the power of understanding customer and consumer insights to provide a competitive advantage for any organization striving to create meaningful and lasting growth. She has focused her passion and harnessed her previous experiences and education to help agencies differentiate in a highly competitive market and increase their win rate by delivering deep marketplace insights in their new business pitches. Mary Claire has a BBA and MBA from the University of Notre Dame. Her experiences span from start-ups to corporations, from social entrepreneurship to financial institutions, and from Central America to back home in the US.

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