An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet.Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned. virtual ISP (VISP) is an operation that purchases services from another ISP, sometimes called a wholesale ISP in this context, which allow the VISP's customers to access the Internet using services and infrastructure owned and operated by the wholesale ISP.