EXHIBIT 21.1

Subsidiaries of the Registrant as of December 31, 2019	Jurisdiction of Incorporation
DYNARDO Austria GmbH	Austria
Fluent China Holdings Limited	Barbados
ANSYS Belgium S.A.	Belgium
Livermore Software Technology, LLC	California
ANSYS Canada Limited	Canada
2011767 Ontario, Inc.	Canada
Helic, Inc.	Delaware
ANSYS France SAS	France
OPTIS SAS	France
ANSYS Germany GmbH	Germany
DYNARDO (Dynamic Software and Engineering) GmbH	Germany
ANSYS HELLAS SINGLE MEMBER S.A.	Greece
OPTIS Hong Kong	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
OPTIS Japan K.K.	Japan
ANSYS Luxembourg Holding Company S.à.r.l.	Luxembourg
ANSYS Luxembourg S.à.r.l.	Luxembourg
Computational Engineering International, Inc.	North Carolina
Fluent Software (Shanghai) Co., Limited	People's Republic of China
ANSYS-Fluent (Shanghai) Engineering Software Trading Co., Ltd.	People's Republic of China
Apache Science and Technology (Shanghai) Co. Ltd.	People's Republic of China
Apache Design Solutions Chengdu, Inc.	People's Republic of China
OPTIS CN Limited	People's Republic of China
ANSYS Poland Z.o.o.	Poland
ANSYS OOO	Russia
ANSYS Singapore Pte. Ltd.	Singapore
ANSYS Korea LLC	South Korea
OPTIS KOREA Co., Ltd.	South Korea
ANSYS Iberia, S.L.	Spain
ANSYS Sweden AB	Sweden
ANSYS Switzerland GmbH	Switzerland
OPTIS World SA	Switzerland
Taiwan ANSYS Technologies Co.	Taiwan

ANSYS UK Limited	United Kingdom
Granta Design Limited	United Kingdom
OPTIS Pristine Limited	United Kingdom