Outsourcing is contracting with another company or person to do a particular function. Almost every organization outsources in some way. Typically, the function being outsourced is considered non-core to the business. An insurance company, for example, might outsource its janitorial and landscaping operations to firms that specialize in those types of work since they are not related to insurance or strategic to the business. The outside firms that are providing the outsourcing services are third-party providers, or as they are more commonly called, service providers. Although outsourcing has been around as long as work specialization has existed, in recent history, companies began employing the outsourcing model to carry out narrow functions, such as payroll, billing and data entry. Those processes could be done more efficiently, and therefore more cost-effectively, by other companies with specialized tools and facilities and specially trained personnel.