David and Nannette Wiltjer are running pilot programs with their wipe-based disinfectant system in two area grocery stores.
Mother, Son Pioneer A Niche Market
By Daniel Schoonmaker
Published: September 27, 2004
GRAND RAPIDS — What started with a stranger’s sweat dripping into Clean For You LLC president Nannette Wiltjer’s workout space has turned into a fast-growing enterprise for her and her son, Vice President of Marketing David Wiltjer, with applications across several industries.

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