Crossword clues for the word: BUSINESSLETTERS The word BUSINESSLETTERS has appeared as an answer to at least 2 crossword clues on different crossword puzzles. Crossword clues for BUSINESSLETTERS Showing 1 to 2 of 2 results Clue(s) Company correspondence ... and a hint to the abbreviation hidden in 17-, 24-, 52- and 66-Across Inc. and LLC?