How a construction company is usually structured
Construction firms organise around projects. Project managers own budget and schedule; site superintendents run the site day to day; foremen lead each trade crew. Estimating, safety and the back office support every project.
Project-based structure
This is a form of divisional (project) structure. When a project ends, crews move to the next one, so charts are often redrawn per project.
Subcontractors
Show major subcontractors under the superintendent who coordinates them, marked "(sub)" so it is clear they are not employees.