Sebastian has over 20 years of global marketing, consulting and leadership experience within the marketing, sales and analytics field. Sebastian has built, and managed marketing and analytics consulting practices worth more than $15 million in revenue and has worked extensively in the management consulting industry. Prior to marketscience, Sebastian helped build and lead Ninah Consulting, where he was partner and managing director, from a 2-person team in 2006 to a leading global marketing analytics firm with over $20 million in consulting services revenue globally. At Ninah, he was responsible for client development, thought leadership, product development and overall firm management.

Prior to Ninah, Sebastian helped develop and lead the Marketing Accountability Partnership (MAP), a marketing analytics company within the Interpublic Group of Companies (IPG). He also had tenures with FutureBrand, where he led the brand analytics practice, and created a unique approach to brand valuation. He began his career at PWC in the M&A practice.

Sebastian graduated from Harvard and holds an advanced degree in Economics from Aurhus University, Denmark.