In this paper, the blockchain technology will be explained in more detail, as well as its connection to business logistics. The aim of this paper is to establish a cause-and-effect relationship between blockchain and the enhancement of efficiency, security, and traceability of information. The concept of logistics and its logistic systems will be defined. Furthermore, the Fourth Industrial Revolution or Industry 4.0 and emerging technologies and contributions it brings will be outlined and explained, including the technology of blockchain. Additionally, the paper will delve into the definition of blockchain itself, its functionalities, and will clarify its advantages and disadvantages. The testing of set hypotheses will be carried out on four selected business entities, and the impact of blockchain technology on their supply chain efficiency, security, and traceability will be explained. The four business entities analyzed in this paper are A.P. Moller-Maersk, a provider of logistics and transportation services, Oracle, a provider of database and other ERP systems, Carrefour, a French retail chain, and Walmart Canada, the Canadian division of a North American retail giant. Throughout the discussion, this paper determines the influence of blockchain technology on the efficiency of the analyzed business entities and businesses in general. Blockchain technology is still a relatively underexplored area, but general indicators show that it enhances the efficiency, security, and traceability of information flow and the supply chain. It also enables an easy and fast way to access information about each supplier of a specific product. Through future research and analysis, the exact role of blockchain technology within the supply chain and the field of logistics in general will be determined.