Deleting a company is irreversible. Once you delete a company, it can no longer be restored.
Delete a company
Select Contractors in the sidebar or select it in More.
Click on the company's right-hand side and select Delete.

In the pop-up window, click Delete company.
Bulk delete companies
Select Contractors in the sidebar or select it in More.
Check the companies’ boxes and click Delete on the lower-right of the page.

In the pop-up window, click Delete.