Proofpoint (PFPT) 10-K 2013 FY Annual report

Exhibit 21.01

List of Subsidiaries of Proofpoint Inc.

Wholly-Owned Subsidiaries	Jurisdiction of Incorporation
PROOFPOINT CANADA INC.	Ontario, Canada
PROOFPOINT EMAIL SOLUTIONS GMBH	Federal Republic of Germany
PROOFPOINT INTERNATIONAL INC.	Delaware, USA
PROOFPOINT JAPAN KK	Japan
PROOFPOINT LIMITED	England and Wales
PROOFPOINT MALTA LTD	Republic of Malta
PROOFPOINT PTY LTD	Commonwealth of Australia
PROOFPOINT SINGAPORE PTE. LTD.	Republic of Singapore
NEXTPAGE, INC.	Delaware, USA
PROOFPOINT NI LTD.	Northern Ireland
ABACA TECHNOLOGY CORPORATION	Delaware, USA
ARMORIZE TECHNOLOGIES, INC. (US)	Delaware, USA
ARMORIZE TECHNOLOGIES, INC. (Taiwan)	Taiwan
ARCHING TECHNOLOGIES, INC.	Taiwan
SENDMAIL, INC.	Delaware, USA
SENDMAIL INTERNATIONAL, INC.	Delaware, USA
SENDMAIL, LTD.	United Kingdom
SENDMAIL SOFTWARE GMBH	Germany
SENDMAIL SARL	France
SENDMAIL KK	Japan
NASCENT TECHNOLOGIES, INC.	Delaware, USA
BRUTE SQUAD LABS, INC.	Washington, USA