The acronym 'CSP' stands for 'Cloud Service Provider', which refers to companies that offer cloud computing services, including infrastructure, platforms, and software. CSPs enable businesses to access and utilize scalable resources over the internet, reducing the need for on-premises infrastructure. They provide various models such as IaaS, PaaS, and SaaS, catering to diverse organizational needs. By leveraging CSPs, companies gain flexibility, cost-effectiveness, and enhanced operational efficiency from cloud solutions.