Exhibit 21
SUBSIDIARIES OF CASS INFORMATION SYSTEMS, INC.*
| Name & Address | State of Incorporation |
| Cass Commercial Bank | Missouri |
| 12412 Powerscourt Drive | |
| St. Louis, Missouri 63131 | |
| Cass International LLC | Missouri |
| 12444 Powerscourt Drive | |
| St. Louis, Missouri 63131 | |
*Pursuant to Item 601(b)(21)(ii) of Regulation S-K, the names of particular subsidiaries may be omitted if the unnamed subsidiaries, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary (as such term is defined in Rule 1-02(w) of Regulation S-X) as of the end of the year covered by this annual report on Form 10-K.
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