Real Dictionary

clearinghouse
countable noun: If an organization acts as a clearinghouse, it collects, sorts, and distributes specialized information.

clearinghouse in British English
an office maintained by a group of banks as a center for exchanging checks drawn against one another, balancing accounts, etc.
noun: a place or institution where mutual claims and accounts are settled, as between banks
noun: an establishment maintained by banks for settling mutual claims and accounts