EXHIBIT 21.1

Subsidiaries of the Registrant as of December 31, 2023	Jurisdiction of Incorporation
ANSYS Austria GmbH	Austria
Fluent China Holdings Limited	Barbados
ANSYS Belgium S.A.	Belgium
ANSYS do Brasil LTDA	Brazil
Diakopto Inc.	California
ANSYS Canada Limited	Canada
ANSYS Lumerical Software ULC	Canada
2011767 Ontario, Inc.	Canada
ANSYS Technology (Shanghai) Co., Ltd.	China
OPTIS CN Limited	China
Cullimore and Ring Technologies, Inc.	Colorado
Ansys International LLC	Delaware
OnScale, LLC	Delaware
Grove Financing Sub 3, LLC	Delaware
Zemax Taiwan, LLC	Delaware
Zemax, LLC	Delaware
ANSYS France SAS	France
Extrality SAS	France
ANSYS Germany GmbH	Germany
DYNAmore Gesellschaft fur FEM Ingenieurdienstleistungen GmbH	Germany
ANSYS Hellas Single Member S.A.	Greece
OPTIS Hong Kong Limited	Hong Kong
ANSYS Software Private Limited	India
ANSYS Ireland Ltd.	Ireland
ANSYS Software, Ltd.	Israel
ANSYS Italia, S.r.l	Italy
ANSYS Japan K.K.	Japan
OnScale Japan GK	Japan
ANSYS Luxembourg Holding Company S.à.r.l.	Luxembourg
Computational Engineering International, Inc.	North Carolina
Ansys Government Initiatives, Inc. AGI.	Pennsylvania
ANSYS Poland s p.z.o.o	Poland
ANSYS OOO	Russia
ANSYS Rwanda Limited	Rwanda
ANSYS Singapore Pte. Ltd.	Singapore
ANSYS Korea LLC	South Korea
ANSYS Iberia, S.L.	Spain
Engineering Simulation and Scientific Software Rocky DEM S.L.U.	Spain

ANSYS Sweden AB	Sweden
DYNAmore Nordic AB	Sweden
ANSYS Switzerland GmbH	Switzerland
desktop.studio GmbH	Switzerland
Matterhorn Merger Sub GmbH	Switzerland
Taiwan ANSYS Technologies Co.	Taiwan
ANSYS MEA FZ-LLC	United Arab Emirates
ANSYS UK Limited	United Kingdom
Granta Design Limited	United Kingdom
Grove Acquisition Sub Limited	United Kingdom
Grove Financing Sub Limited	United Kingdom
Grove Financing Sub 2 Limited Partnership	United Kingdom
Grove Financing Sub 4 Limited	United Kingdom
Motor Design Limited	United Kingdom
OnScale Limited	United Kingdom
Phoenix Integration, Inc.	Virginia