Alfred Rossi founded ProSeller in 2001. He is responsible for strategy, all product platforms and sales.. Alfred Rossi has been active in direct marketing, database marketing and dealer account management for almost 30 years. During the past 18 years, he has worked intensively with the most well-known IT manufacturers, B2B accounts, distributors. and resellers. Based on this know-how of the processes and circumstances of the supply chain (manufacturer-distributor-reseller-end customer), he founded ProSeller. ProSeller has been the Swiss market leader with the first “Concerto” project since 2002.. Motto: Hurray - it always comes out well!