n s u n is a company founded by some computer engineering students in 2001 by one vision: Creating web-based solutions to make communication & commerce more integrated, unified & fluid. The main products of n s u n are: zirbana: A cloud-based platform (SaaS) to develop social-commerce applications based on. tiwall: A social system to provide comprehensive services to end-users & providers in art events & excursions era. tiravel: A social system focused on everything needed to travel.