How can I block companies from looking at my credit report?

Question

How can I block companies from looking at my credit report?

Answer 1

Call the three credit bureaus, have them lock you credit reports, but if you apply for something you'll have to call them before you apply and have them un lock so they can do an inquiry.

Answer 2

You can opt out if you want to stop all those pre-approved credit card offers.  https://www.optoutprescreen.com/?rf=t

Or you can freeze your credit file.  Of course, your current creditors will still be able to check your file.