Marc Bresseel started his professional career at IBM and subsequently grew further while at Microsoft. He was fortunate to kick off the Microsoft online services MSN, Hotmail, and Messenger as one of the early internet pioneers in Belgium. He managed the sales and marketing activities for MSN and Microsoft online services in the EMEA markets, led the Global Agency team, and became Global CMO for Microsoft Advertising.

After sixteen years at Microsoft, Marc moved on to manage the top 14 markets for IPG Mediabrands. In 2014 he became a founding partner of Duval Union, an organization that provides business & marketing consulting, and marketing & communication execution to brands.

He is the author of “Obsessed. Decode the data landscape. Reboot your sales and marketing. Prepare for the era of AI". Marc is obsessed with creating value for brands and scaling teams and organizations. Diversity is very close to his heart – he has been active judge and promoter of the “Inspiring Fifty Belgium”, an award recognizing the top fifty women excelling in tech careers across Belgium. He likes to challenge the status quo in business and life in general.

Topics: Data Privacy, Open Web, Consent and data regulation, Digital Advertising, Consumer First Advertising, Digital Identity, Future of Publishing/supporting publishers

Accolades: PMW 100 International Powerlist 2025