522320  Financial Transactions Processing, Reserve, and Clearinghouse
Activities 

This industry comprises establishments primarily engaged in providing
one or more of the following: (1) financial transaction processing
(except central banks); (2) reserve and liquidity services (except
central banks); and (3) check or other financial instrument
clearinghouse services (except central banks).

The data published with NAICS code 522320 include these parts of the following
SIC industries:

     6019 (pt)  Other central reserve depository institutions
     6099 (pt)  Electr funds trans & automated clearinghouses for banks & checks
     6153 (pt)  Credit card service by business credit institutions
     7389 (pt)  Credit card processing