contractors

noun

1. 1

   A person or company that builds or improves buildings.

2. 2

   A person or company that performs specific tasks like electrical or plumbing work in construction projects.

3. 3

   A person or company hired to maintain existing facilities like air conditioning systems, groundskeeping, etc.

4. 4

   A person hired to do a job on a business contract, as opposed to a permanent employee.