Optima Software Services Plus, trading as O2S Plus, is a Tunisian IT services and engineering company that positions itself as a Sage integrator and reseller. The firm describes more than 15 years of experience supporting clients with their information systems, focusing on Sage business management software for accounting, finance, commercial management and production management. Its product coverage includes Sage 100c modules such as Sage 100c Gestion de Production (GPAO) and Sage finance and customer management solutions, delivered to small, medium and large enterprises. O2S Plus targets clients across industry, trade, telecom, banking and services, providing end-to-end engagements that begin with requirements definition and software specifications and continue through deployment, configuration, updates, legal monitoring and ongoing user support. The company also references Microsoft partner integrator status alongside its Sage practice. O2S Plus is headquartered in Tunisia and operates primarily in the Tunisian market, with a team that includes Sage technical-functional consultants and ERP/BI consultants according to public profiles.