I have a column with the following type of text in it:
256 items delivered by supplier (LLC Printlogic) 436 items delivered by supplier (LLC Mango)<
And another, that assumes the characters at the end are enclosed in <...> but not might always be
<...>
=SUBSTITUTE(REPLACE(A1,1,FIND("(",A1),""),")","")
Note that that same formula will also work on your original post, before it was edited and the added at the end of each line: