Contractor

A general contractor is a construction manager employed by a client, usually upon the advice of the project’s architect or engineer.Responsible for the overall coordination of a project, general contractors may also act as building designer and foreman (a tradesman in charge of a crew).

General_contractor (Wikipedia)

A general contractor, main contractor, prime contractor, builder (UK/AUS), or contractor (US and Asia) is responsible for the day-to-day oversight of a construction site, management of vendors and trades, and the communication of information to all involved parties throughout the course of a building project. In the USA a builder may be a sole proprietor managing a project and performing labor or carpentry work, have a small staff, or may be a very large company managing billion dollar projects. Some builders build new homes, some are remodelers, some are developers.