Exhibit 21.1

ACTUATE CORPORATION SUBSIDIARIES

as of December 31, 2009

Subsidiary Name	Jurisdiction of Incorporation
Actuate Asia Pacific Pty. Ltd. Actuate Canada International Corporation Actuate Cayman Limited Actuate Pte. Limited Actuate Software GmbH Actuate International Sarl Actuate International Corporation Actuate Japan Co., Ltd. Actuate Limited Actuate Software (Shanghai) Co. Ltd. Actuate UK Ltd. Nimble Technology, Inc. Tidestone Technologies, Inc.	Australia Canada Cayman Islands Singapore Germany Switzerland State of Delaware, United States of America Japan Hong Kong Peoples Republic of China United Kingdom State of Delaware, United States of America State of Kansas, United States of America