How to change company listing ? I pay for IMDBPro

You didn't say which of the many Michael Sterns listed you are, so I can only give general advice.

From what you say, it appears you don't want to actually delete a company, but rather remove the link to your Name page.

Start from the Pro version of your Name page.
Click the Edit Page button near the bottom of the page.

Select Correct/Delete from the drop-down menu beside Employers.
Click Continue (at the bottom of the page)

Select Delete in the Action field beside the Company you want to remove.
Click Check these updates

Enter the required Explanation: that you are no longer employed at that company
Click (Re-)Check these updates

The form should now have a green background, and you can Submit these updates

I am Michael D Stern. It says 11:11 productions. That company no longer exists. I followed the instructions here and there is no category named employers. Please advise me

 

Michael: You should be able to find the Employers line when using IMDbPro (not the free site), clicking "Edit page" from your page there, and looking at the fifth line in the Contact Details section.