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Thomas Baumgartner, Homayoun Hatami, and Jon Vander Ark

Thomas Baumgartner, Homayoun Hatami, and Jon Vander Ark

Based in Vienna, Thomas Baumgartner is the global leader of the Sales & Channel service line at McKinsey & Company and co-leader of the European Marketing & Sales Practice. He advises clients in industries including high tech, electronics, transportation, basic materials, telecommunications, and consumer goods--where he helps them outline and drive large-scale, top-line growth programs.

Based in Paris, Homayoun Hatami co-leads McKinsey’s Sales & Channel service line and the firm's work in sales growth. He has a broad range of experience working with clients in Europe, the United States, and Asia to power growth through excellence in sales and channels.

Based in Detroit, Jon Vander Ark co-leads McKinsey’s work in sales growth and is a core leader in the Sales & Channel Management service line for the Americas. He has deep experience serving clients across a range of industries, with a particular focus on industrial and consumer durables businesses.