Purpose of this paper: The aim of this paper is to explore the possibility of improving production indicators by implementing Kaizen Events. The teams are composed of both managers and operators with the aim of developing and/or implementing improvements in a period of from 3 to 5 days. Methodology: The empirical research will consist of the description of the results obtained in 11 industrial companies from the automotive components industry In each of the companies, we have followed up different interventions over a 9-12 month period. Findings: We shall present the initial situation; the activities carried out by the company and the evolution of the manufacturing performance approximately three months after the activities are finished, as well as qualitative conclusions on the carrying out of the Kaizen Event. What is original/value of paper: There has been little empirical research to establish the degree of the improvement of productive indicators in companies advancing towards lean production. The paper tries to fill this gap.