The back office is the portion of a company made up of administration and support personnel. These personnel do not usually interface with customers. Back-office functions include accounting, record maintenance, regulatory compliance, human resources and IT services. The back office can be thought of as the part of a company responsible for providing all business functions related to its operations. Even though they are "behind the scenes," back-office personnel provide essential functions to the business. The back office is an essential part of any organization. It is their roles that enable and equip front-office personnel to perform their customer-facing duties. The back-office is sometimes used to describe all jobs that do not directly generate revenue.