This final paper describes Kaizen (philosophy and continuous improvement of manufacturing, services or organisation), it's application in daily business and how-to on Kaizen tools on improvement of an exemplary organisation and one of its processes. In the first part of this final paper, types of organisations, processes and tools which are used to enhance processes in companies are described theoretically. Kaizen principle, it's characteristics and general information about Kaizen events are also described theoretically. Structure and analysis of organisational structure of the company Centre for vehicles of Croatia is described in more details. Comparison of the organisational structure and one selected process of selected company was made, before and after applying Kaizen event. In the comparison are shown the improvements in the process, it's effectivenes and shorter time. Tools used in optimizing organizational structure are Kaizen tools: waste management (muda) and SWAT analysis. By optimising the organizational structure, significant financial savings are made, which are shown in the appropriate table. Procedure of tehnical inspection is also described, because it was selected for improvement with Kaizen event in order to optimize it. Results of the Kaizen event have brought savings in time of 40%, which is time for which said procedure could be shortened. The shortened time increases vehicle flow in the technical inspection station and thus creating opportunity for profit increase. Conclusion of the final paper is that with reorganising existing structures, using known Kaizen tools and way of doing business and using quick Kaizen events, more effective function and use of existing resources could be made, with minimal financial investment. All that opens up a path for investments to increase service quality or exploring new markets, in which a company can grow, thrive and increase the quality of it's services and products.