You (plural), a respectful/formal form used when addressing more than one person.
あなた方のご協力に心から感謝いたします。
We sincerely appreciate your cooperation.
昨日、あなた方にお伝えした通り、会議は来週に延期になりました。
As I informed you yesterday, the meeting has been postponed until next week.
あなた方はどの部署の方ですか？
Which department are you (plural) from?