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Exhibit 21.01
SUBSIDIARIES OF THE REGISTRANT
The following is a list of subsidiaries of ACI Worldwide, Inc., omitting subsidiaries which, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary as of December 31, 2025:
| | | | | |
| ACI Payments, Inc. | Delaware |
| Applied Communications Holding GmbH | Germany |
| ACI Worldwide Solutions Private Limited | India |
| Applied Communications GPC Limited | Ireland |
| Applied Communications (Ireland) Limited | Ireland |
| ACI Worldwide (Mexico) S.A. de C.V. | Mexico |
| ACI Worldwide Corp. | Nebraska |
| ACI Worldwide B.V. | Netherlands |
| Applied Communications Inc. U.K. Holding Limited | United Kingdom |
| ACI Worldwide (EMEA) Limited | United Kingdom |