Exhibit 21

COMPUTER TASK GROUP, INCORPORATED

SUBSIDIARIES OF COMPUTER TASK GROUP, INCORPORATED

The following is a list of all of the subsidiaries of the Registrant as of December 31, 2022. All financial statements of such subsidiaries are included in the consolidated financial statements of the Registrant, and all of the voting securities of each subsidiary are wholly‑owned by the Registrant:

Subsidiary	State/Country or Jurisdiction of Incorporation
Computer Task Group of Delaware, Inc.	Delaware
CTG of Buffalo, Inc.	New York
Computer Task Group of Canada, Inc.	Canada
Computer Task Group International, Inc.	Delaware
Computer Task Group Europe B.V. (a subsidiaryof Computer Task Group International, Inc.)	The Netherlands
Computer Task Group (UK) Limited (a subsidiaryof Computer Task Group Europe B.V.)	United Kingdom
Computer Task Group Belgium NV (a subsidiaryof Computer Task Group Europe B.V.)	Belgium
Computer Task Information Technology Services Private Limited (a subsidiary of Computer Task    GroupInternational, Inc.)	India
CTG ITS S.A. (a subsidiaryof Computer Task Group IT Solutions, S.A.)	Belgium
CTG SAS (CTG France) (a subsidiaryof Computer Task Group IT Solutions, S.A.)	France
StarDust SAS (a subsidiary of CTG SAS)	France
La Societé de Tests StarDust Inc. (a subsidiary of StarDust SAS)	Canada
Computer Task Group of Luxembourg PSF, S.A.	Luxembourg
Computer Task Group IT Solutions, S.A. (a subsidiaryof Computer Task Group Luxembourg
PSF, S.A.)	Luxembourg
CTG LATAM SAS (a subsidiary of Computer Task Group International, Inc.)	Colombia
Eleviant Technologies, Inc.	Texas
Eleviant Technologies Private Limited (a subsidiary of Eleviant Technologies, Inc.)	India
Impiger Mobile, Inc. (a subsidiary of Eleviant Technologies, Inc.)	Texas
Eleviant Consulting Services, Inc. (a subsidiary of Eleviant Technologies, Inc.)	Texas
Eleviant Technologies, Inc. (a subsidiary of Eleviant Technologies, Inc.)	Canada