Partial Match List

First time posting to the forum. I've read through several similar posts and have ran into a corner. I'm attempting to match two lists with partial match company names.

My goal is to match up Column E with Column B in order to identify duplicate companies.

Here's what I've tried

I've trimmed the first word in Column e's name into Column D. I'm now trying to find Column D in Column B.

=IF(ISERROR(MATCH(D1,$B$1:$B$5000,0)), A1,"")

The trouble seems to be in my result. It will always just give me the result from row a. In trying the match the two lists, I'd like to learn how to have it find D in B and give me either the result it finds in B or the result from column A next to the match in column B. I've attached the sheet.

Help from someone more experienced with this type of function would be tremendously helpful.

Thank you!