In the Dashboard:

Home / Site administration / company Dashboard / Manage company course settings
http://growdly.com/blocks/iomad_company_admin/iomad_courses_form.php?lang=en

You have an option
to select
"Is shared", Is shared on each course.
You have three choices:

  1. No - Course is not shared - this is for keep this course closed for only one company.
  2. Open sharing - Course is shared with all companies on growdly as defuelt.
  3. Closed sharing - Course shared with selected companies (see Course management > Assign to company)