Background: Cloud computing is a new technology that can provide benefits to all stakeholders. Most of the studies attempted to find the factors that affect the adoption of this technology. However, the findings of these studies still inconclusive. In addition, the theoretical models that are used are varied. Therefore, the purpose of this paper is to review, integrate and consolidate the literature to identify the factor that affect the adoption of cloud computing by business organization. Objectives: The objectives of this paper is to identify the factors that affect the adoption of cloud computing technology by business organizations. In addition, the paper aims to provide a clear understanding about the current situation of the research in the cloud computing technology. To fulfill these objectives, a process to refine the related articles was followed. As a result, a total of 27 articles were considered related to the topic of this study. A frequency analysis was conducted on these articles. Findings: the finding showed that security, compatibility, relative advantage, complexity, privacy, ease of use and usefulness are the most important variables for the adoption of cloud computing by business organization. The Technology Acceptance Model (TAM) is the most deployed theoretical model. High percentage of the studies were conducted in emerging economies and particularly on high tech companies. Quantitative studies outperform qualitative studies. IT professional was the unit analysis of majority of the studies. Conclusion: Decision makers can benefit from this paper in the sense that the most important factors are identified so that focusing on these factors yield better adoption rate of cloud computing. Findings of previous studies are inconclusive regarding the factors that affect the cloud adoption. This study reviewed the literature and consolidated the views of previous studies. Direction of future works are given and discussed to extend the findings of this study.