After a meteoric career at TBWA, André Duval came to head the agency at a young age. In 1996, together with Guillaume Van der Stighelen, he started his own advertising agency, Duval Guillaume. Built into the largest and leading advertising agency in Belgium, it was put on the international map. Duval Guillaume was sold to Publicis, and Duval founded a new venture, Duval Union.
Initially conceived as an investment vehicle, today Duval Union has grown to be a fully fledged marketing and communication collective.
Klaus Lommatzsch was one of the pioneers at Duval Guillaume. Along with André Duval and other partners, he served first as Managing Partner and later as Duval Guillaume’s CEO. Lommatzsch oversaw a period of steep growth for the agency— going from 5 to 250 employees and realizing an annual gross margin of €30 million. Duval Guillaume won many awards, including 17 Effies across a 10 year span.
Marc Bresseel started his professional career at IBM, and subsequently grew further while at Microsoft. He took various positions in sales and marketing for both the Belgian and the EMEA (Europe, Middle East and Asia) market and acted as Global CMO for Microsoft Advertising. After sixteen years at Microsoft, Marc Bresseel started at IPG Media Brands. He joined Duval Union in 2014.