Built by Agency People,
for Agency People
We have been on your side of the table. That is why this works.
Built from the Inside Out
Seastream Media was not created by an outsourcing company looking for clients. It was built by someone who spent over a decade leading agencies within one of Europe's largest independent groups, and who saw what was broken from the inside.
Régis Watrisse has over 20 years of professional experience across digital marketing, advertising and entrepreneurship. He co-founded Mediascale Benelux, the programmatic and data hub of the Serviceplan Group, one of Europe's largest independent agency networks. As the entity evolved into Mediaplus, he served as Managing Partner for over seven years, leading the agency's operations in Belgium.
Before that, he was Digital Marketing Director at Plan.Net Benelux, another Serviceplan division, where he spent four years developing digital marketing solutions across media planning, performance marketing, social media and web development.
He holds an Executive Master in Management from Solvay Brussels School, one of Belgium's most prestigious business schools, as well as an Executive Data Science Specialisation. He is trilingual: French (native), English (professional) and Dutch (full professional), and has spoken at major industry events including the Programmatic Advertising Summit.
Beyond his agency career, our founder is also a serial entrepreneur. Before joining the Serviceplan Group, he founded and managed his own ventures, including an e-commerce platform operating across the Benelux, France and England, and a digital marketing consultancy serving SMEs. This entrepreneurial background is central to how Seastream Media operates: with the agility of a founder-led business and the rigour of someone who has delivered at agency-group scale.
Régis Watrisse, Founder