The focus of this research is set in devising and evaluating the efficiency of B2B conceptual model for mobile interactive devices using Man Whitney U test, which is a non-parametric test. B2B model has been devised as an idea of linking businesses in the region of Balkans. The system works on four languages: English, Albanian, Macedonian, and Serbian. There are many businesses in the Balkans that face difficulties in finding a market to sell their products. As such it is strenuous to function and survive in the business world. Many of the people involved use interactive devices in 60–70% percent of the time compared to computers. The research was set to investigate and assess main factors which help developers establish a system which is compatible and effortless. This research study tries to contribute with the devised B2B conceptual model that is intended to help developers in designing and developing a web portal for mobile devices. The Case Study investigates several impacting factors. In addition we have evaluated the usability and user-friendliness of the developed B2B model and used Mann-Whitney U test to determine the impact. Insights and recommendations are provided.