This industry comprises establishments primarily engaged in providing one or more of the following: (1) financial transaction processing (except central bank); (2) reserve and liquidity services (except central bank); and/or (3) check or other financial instrument clearinghouse services (except central bank). Illustrative Examples: Automated clearinghouses, bank or check (except central bank) Credit card processing services Check clearing services (except central bank) Electronic funds transfer services Cross-References. ? Establishments primarily engaged in nonfinancial data and electronic transaction processing are classified in Industry Group 5182, Data Processing, Hosting, and Related Services; and ? Establishments of the central bank primarily engaged in check clearing and other financial transaction processing are classified in Industry 521110, Monetary Authorities-Central Bank.