In twelve years, RELEX Solutions (https://www.relexsolutions.com/company/) has become one of the leading retail supply chain solution providers in the world, employing about 400 professionals in 10 countries, and it is growing rapidly. Three scientists of the logistics research group (LRG) in the Department of Industrial Engineering and Management (DIEM) of Aalto University founded RELEX Solutions in 2005: Johanna Småros, Mikko Kärkkäinen and Michael Falck. Soon two other doctors, Timo Ala-Risku and Jouni Kauremaa, from the research group at DIEM joined the firm. The team continued developing the research-based innovation in the business projects of RELEX Solutions. The application areas of the retail planning innovation of RELEX range from accurate forecasting and replenishment to revolutionary assortment, space and workforce optimisation.