An Internet Service Provider (ISP) is a company or organization that provides individuals and businesses with access to the internet. ISPs offer a variety of internet services, including broadband, DSL, fiber-optic, and satellite connections. In addition to basic internet access, many ISPs also offer additional services like email hosting, web hosting, and cloud storage. ISPs serve as the gateway for users to browse the web, stream content, and communicate online. The performance, speed, and cost of internet access can vary significantly depending on the ISP and the type of connection offered.