What others say


The experiences and the satisfaction of my customers guide my suite of services. Read what others say about my work below:


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“Constant helped me and C1000 a lot in redefining the presentation and lay-out strategy. His excellent knowledge of consumer behavior and shopper research were of great value to C1000. Innovative research methods and a creative project approach directed to very useful shopper insights”.

Joris Malipaard

Manager Formule Management

Jumbo Supermarkten


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“Constant was a great partner at setting and delivering our Customer and Shopper insights agenda across Europe. He provided hands on guidance to the developing markets by showing them the path to success and growing the local talent. He also was able to deliver cutting edge leadership to the developed countries through advanced insights focused on the retailer’s shoppers and their behavior. He is a strong communicator that is able to build relationships at both the local and global level with both insights professionals and sales leadership. His openness to share best practices & knowledge from his experience and his own personal curiosity to learn about new ideas are his greatest assets”.

Bob Nolan

Vice-President of Customer Insights & Analytics

ConAgra Foods


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“Constant is an absolute professional in the area of Customer/ Shopper marketing as well as Insights. Both in his domestic role as subsequently in his European role he has lead the Insights agenda for PepsiCo, bringing new strategic thinking and (pragmatic) actions & solutions together. Constant is passionate about his work and his customers, always strives for the best and a pleasant colleague to work with”

Teimen de Jong

Sales Director

PepsiCo Australia


“It was great opportunity to have Constant as a Mentor! He was a founder of category management & shopper insights functions in Russia. Constant was continuously supporting us on defining both strategic agenda and at the same time advising on project details. Constant is a great Coach: making you think, helping you to come to the right solution yourself. I’d truly recommend Constant as customer insights professional, a leader who can drive change and person with passion to the business”

Diana Berganova

Head of Sales Execution & Customer Marketing

PepsiCo Russia


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“Over the last 2 years, I’ve had the opportunity to work with Constant on several European Shopper Insights & Customers projects. Constant is a very professional, open-minded and a passionate manager. He was able to build valuable partnerships with customers thanks to strong capabilities in advanced shopper insight researches and thanks to a sound understanding of the retailer landscape, cross-boarder.  It has been inspiring and a valuable experience to work with Constant. I strongly recommend him for future assignments and thank him for the great collaboration!”

Christel Poncin

Strategy, Insights & CRM Manager

Danone Belgium



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