There’s a few methods to change your company name that shows up in new source files you add to your project.

To do it on a system-wide basis so it applies to all projects, open a terminal window, and type the following line (one line, no enters):

To do it on a per project basis so it applies only to files in your current project, right-click your project and select ‘Get info’

Now select the ‘general’ tab and change the company name to what you’d like in the project files to show up.