Mark is co-founder of Pointy, a startup building a map of where every product is physically for sale. Retailers just plug in a Pointy device, and the complete contents of their shop is displayed online automatically. Previously Mark co-founded Plink, a visual search engine company based on this PhD research. Plink was acquired by Google in April 2010. Post-acquisition, Mark spent three years at Google on the computer vision and machine learning teams. Mark is also an investor and advisor to a wide range of technology start-ups.