This paper analyzed the contributions of a 5-day kaizen event in the Container management industry to effectively utilize resources and eliminate waste from container rentals. The practices adopted were described during the kaizen event in a multinational oil and gas company. The results found allowed the discussion of impacts in three guiding dimensions of the business, cost, quality and delivery. The main improvements evidenced were related to cost reduction and efficient use of resources. The dissemination of the culture of continuous improvement is enhanced during the event. Finally, the research reinforces that the use of kaizen as an element of competitive force brings positive results for the organization.