Location Nairobi, Nairobi Area, Kenya Regions Europe, Middle East, and Africa (EMEA) Gender Male
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Sammy Winterfildt Founder & CEO, BoldStreet Partners Ltd
Sammy is the visionary architect behind Africa’s next-generation Out-Of-Home (OOH) advertising transformation. As Founder and CEO of BoldStreet Partners, he is pioneering the continent’s first hybrid OOH/DOOH platform one that merges high-visibility roadside structures with
real-time analytics, programmatic ad tech, and AI-powered civic safety features.
At the intersection of urban innovation and media, Sammy leads the charge in converting traditional billboards into intelligent, performance-driven assets. Under his leadership, BoldStreet is redefining what it means to advertise in public space, turning static visuals into dynamic, measurable experiences.
His cross-disciplinary expertise spans creative direction, programmatic advertising, and lean operations, enabling him to build agile teams, secure high-level partnerships, and rapidly scale BoldStreet across key African cities.
Sammy holds certifications in Google Ads, HubSpot Marketing, Programmatic Advertising (NT School), and Lean Six Sigma, and has studied Creative Direction (AWARD School Australia), Software Engineering and Business (ALX Africa), and Advanced International Business (Saylor Academy). He also holds an Associate Degree in Business Management from the University of Nairobi.
