EXHIBIT 21.01

Name	Jurisdiction of Organization
Direct Radiography Corp.	Delaware
Hologic Investment Corp.	Massachusetts
Hologic International Holdings B.V.	Netherlands
Hologic Europe N.V.	Belgium
Hologic France S.A.	France
Hologic Espana, S.A	Spain
R2 Technology, Inc.	Delaware
R2 Technology Canada, Inc.	Ontario
Suros Surgical Systems, Inc.	Delaware
AEG Photoconductor Corporation	Delaware
AEG Elektrofotografie GmbH	Germany
e-ink Technologies LLC (70% owned)	Delaware
Technologies Investments, Inc.	Delaware
Technologies Investments, LLC	Delaware
AEG avacs GmbH (70% owned)	Germany
AEG Photoconductor (Shanghai) Co. Ltd. (80% owned)	Shanghai/China
AEG Elektromechanische Industrielösungen Verwaltungsgesellschaft mbH	Germany
AEG Elektromechanische Industrielösungen GmbH & Co KG	Germany