The industry of Home Automation appeared during the 70's. At its beginning, the industry was destined to provide offer for the need of comfort life, safety and security for household e.g. alarms system. But this industry failed in being adopted by the large public. Over the year, phenomenon and new technologies impacted Home Automation that changed of direction. With the crisis and the issues of environment, the offer turns toward energy control management. It has been support by the emergence of new technologies as IOT and by the emergence of Building Automation that become the most important part of the industry. Known as BAS, it provides the same products but target private buildings. As little research has been made on the subject due to the novelty, we decided to do a research that will be useful by providing a market analysis. This is the academic purpose that we chose: "how does the market of Building Automation looks like". We decided to add an international level that corresponds with the major of our study "Focusing in France and Germany". Finally, we complement our research with a practical aspect "From the point of view of start-up new entrant". We decided to do a qualitative research that provided patterns, attitudes, behavior. The literature research from academicals sources and governmental sources mainly. As well, we made a qualitative survey answered by companies and organisations in France and Germany. We decided to organize our empirical data into three parts; the macro-environmental analyze supported by the theory of PESTEL; then we focus on the industry sustained by the theory of Porter Five Forces. Finally, we analyzed in a deeper way the market and consumers thanks empirical data. Each of those tools constitute an element of our analysis model we called NOD view (National, Offer, Demand). This research concluded that since years, the sector met many changes that are caused bymany factors and influences as the government capabilities and attitudes (legal and political incentives, technologies; economic drivers) as the situation in the rivalry opacity (threats and opportunities) and finally as the capacities and attitudes of consumers (awareness impact, interest factors, characteristics of the buildings) Those three aspect provide the overview and answers of our three question's aspects.