The evolution to Industry 4.0 the Bulgarian business needs to improve not just innovations and human resources, but to change their "software" to manage their own business. Thus, the change of business requires a next generation of marketing and respectively, a brand new marketing organization. The main purpose of the paper is to open a discussion where is a need of new marketing organization as well as does it possible to change the existing marketing or to evolve it. So, the paper is based on the good practices of the world leading companies and explore the opportunities to introduce them to the Bulgarian industrial business. The methodology approach of the paper is based on the theoretical and methodological research of the contemporary marketing literature and lessons learnt from the business. The structure of the paper is: 1. Introduction: next steps and requirements of Industry 4.0 approach to change business inside; 2. State of art: discussion on the marketing organization and its evolution; 3. Methodology approach: introducing the steps to establish a marketing leadership in Bulgarian industrial business; 4. Empirical results: presentation of the possibilities to enforce the evolution of marketing organization; 5. Conclusions: next steps of the good marketing practices.

In the growth of the Industry 4.0 transformation the economy has become to changed. Thus, not just the economy regulations are fostered but a new business approach has been arisen: the circular / regenerative economy approach. The EC already reacted as it introduced not just updated Sustainable development indices but a new set of indices: circular economy indices. According to this change of the economic model, the business organizations are fostered to change their business models, especially for the industry. Thus, not just the new regulations have to be introduced to the industrial business model but the total change of the added value of the business as introduction of green technologies or innovations for non-waste production value chains. Aim of the paper: to identify and to analyze the requirements to the business that foster them to change their linear business model to circular one. Methods: descriptive analysis of the Bulgarian economy according to circular economy indices; comparative analyses for identification of main differences between linear and circular economies; induction and deduction of the elements of business models. Results: analysis of the indices of circularity of the Bulgarian economy; analysis of requirements for transition from linear to circular economy; identifying requirements to the business model of a circular economy; systematizing rules / guidelines for transforming the business model of a linear economy into the business model of a circular economy. Conclusions: The indicators of the circular economy can be considered as a part of the harmonization process in the EU. Avoiding from the responsibilities of the circular economy approach by Bulgarian industry leads to moving away from the EU economies. This requires relevant national policies, measures and instruments to promote the transformation of the business model to circular one. The paper aims to present the need of industrial business model change as to analyze the starting position of the Bulgarian industry. Thus, the structure of the paper is following: 1. Introduction to Circular economy indices. 2. Definition of Circular economy approach. 3. Analysis of the Circular economy indices change for Bulgaria. 4. Introduction to business model change from linear to circular one. Conclusions.

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The new-thinking is growing up as a contemporary entrepreneurial concept. So, the new-business establishment has been changed a lot of after the Schumpeterian entrepreneur has been set.

Bulgarian industry has the potential to become a crisis balancer as it reduces the negative impact of a financial crisis and drives the contemporary economic growth. In addition, not only the Bulgarian but European and world industries are developing at a rate unknown at this time. In just one generation, we have witnessed two major industrial revolutions (Industry 3.0 and Industry 4.0, respectively) and we are on the birth-stage of the next one (Industry 5.0). The success of an industrial enterprise, the success of the entire industry requires flexibility, adaptability and, above all, institutional support. So, the paper is addressed to research the following questions: 1. How the global industry is developing, 2. Where is the Bulgarian industry located and what are the opportunities for the development of Industry 4.0 via Internet 4.0, 3. What should be the next step in development of the Bulgarian industry.