Contractor/ˈkɑːntræktər/ Definition 1 of 3Pro Tip 1/3Types of Contractors Contractors can be individuals or entire companies hired for their services. They hired a contractor to manage their IT services. Pro Tip 2/3Project Specific A contractor often works on a project-to-project basis, not continually. After the restaurant renovation, the contractor left for another project. Pro Tip 3/3Legal Agreements Contractors work under a contract, outlining the work and payment details. The contractor signed a six-month contract to complete the building works.