Exhibit 21.1

SUBSIDIARIES OF PEGASYSTEMS INC.

Name of Subsidiary	State or Jurisdiction of Entity
Chordiant Software Europe Limited	United Kingdom
Chordiant Software International BV	Netherlands
Chordiant Software International Limited	United Kingdom
Pegasystems AG	Switzerland
Pegasystems Bermuda Limited	Bermuda
Pegasystems BV	Netherlands
Pegasystems Canada Inc.	Canada
Pegasystems France, S.A.R.L.	France
Pegasystems GmbH	Germany
Pegasystems Investment Inc.	Massachusetts
Pega Japan K.K.	Japan
Pegasystems Limited	United Kingdom
Pegasystems Mauritius	Mauritius
Pegasystems Pte Limited	Singapore
Pegasystems Proprietary Limited	Australia
Pegasystems Rus LLC	Russia
PEGASYSTEMS Software (Beijing) Co., Limited	China
Pegasystems Sp. Z o.o.	Poland
Pegasystems Spain, S.L.	Spain
Pegasystems Worldwide Inc.	Massachusetts
Pegasystems Worldwide India Private Limited	India