公司市镇（英语：company town），又称公司城镇、公司镇、企业城，是指范围内几乎所有商店和住屋皆由同一间公司所拥有的地区。该公司提供基础建设（住房、商店、运输、卫生下水道和供水设施）以便让工作者搬迁至当地定居。大多数的企业城市都位于偏远的地区，因此居民难以前往其他地方消费或来回通勤。在一段时间后，企业城市可能会吸引非雇员的一般民众、雇员亲属、中小企业经营者前来定居，铁路公司或高速公路公司等其他企业的雇员也可能因工作需求而搬迁至企业城市定居。企业城市中通常会规划一系列的基础设施，包括商店、教堂、学校、市场和休闲设施。在快速成长的偏远地区，企业会因支撑商业需求而规划住居处所，并雇用工作者来兴建基础设施，以及满足商业经营所需要的人力。

A company town is a place where practically all stores and housing are owned by the one company that is the only employer. The company provides infrastructure (housing, stores, transportation, sewage and water) to enable workers to move there and live. Typically, such towns are founded in a remote location, so that residents cannot easily commute or shop elsewhere. Sometimes after a period of time the town attracts non-company residents, relatives and small business entrepreneurs, and people with other employment, such as railroad or highway employees. The original company may sell off the housing. Company towns are often planned with a suite of amenities such as stores, churches, schools, markets and recreation facilities. In fast-growing remote areas companies planned housing to support the business' needs, and then hired workers to build an infrastructure and more workers to staff the business needs. Historian Linda Carlson argues that the managers of corporate towns in the early 20th century believed they could avoid the mistakes made by George Pullman in the 1880s. She says they: