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Tim Castelli

Vice President of Global Advertising Sales


At Instacart, Tim leads the company’s advertising sales org, focusing on building strong relationships with brand partners and media agencies across North America. Tim has more than 30 years of industry experience building advertising solutions for brands of all sizes. He comes to Instacart from iHeartMedia, where he spent more than 10 years leading sales functions from the ground up, and was most recently the Chief Revenue Officer of the media company’s Multi-Platform Group. Prior to iHeartMedia, Tim was a senior leader at AOL, Google, and Ziff Davis Media. He has also served as the publisher of Rolling Stone Magazine, overseeing their advertising strategy, revenue generation and integrated media program.

NACDS Annual Meeting

April 26-29, 2025

The Breakers, Palm Beach, FL

Join our industry’s most influential business leaders at this exclusive event. Build vital strategic partnerships with a who’s who in health and wellness and gain new insights into today’s changing marketplace.