EXHIBIT 21.1

PAREXEL INTERNATIONAL CORPORATION

LIST OF SUBSIDIARIES OF THE COMPANY

(As of June 30, 2010)



|                                                   |  |                      |  
|-------------------------------------------------- |  | -------------------- | -
|SUBSIDIARY                                         |  | Percentage Ownership |  
|PAREXEL International S.A.                         |  | 100                  | %
|PAREXEL International Pty Ltd                      |  | 100                  | %
|PAREXEL Belgium SPRL                               |  | 100                  | %
|PAREXEL International Pesquisas Clinicas Ltda.     |  | 100                  | %
|PAREXEL International (BVI) Corp.                  |  | 100                  | %
|PAREXEL International (Canada), Ltd.               |  | 100                  | %
|PAREXEL International (Cayman) Corp.               |  | 100                  | %
|PAREXEL International y Compania Limitada          |  | 100                  | %
|PAREXEL China Co. Ltd.                             |  | 100                  | %
|CSM Pharma Service Co. Ltd.                        |  | 100                  | %
|PAREXEL International d.o.o. (Croatia)             |  | 100                  | %
|PAREXEL International Czech Republic S.R.O.        |  | 100                  | %
|PAREXEL Denmark A/S                                |  | 100                  | %
|PAREXEL Finland OY                                 |  | 100                  | %
|PAREXEL International SARL                         |  | 100                  | %
|PAREXEL International GmbH                         |  | 100                  | %
|PAREXEL International Holding Germany GmbH         |  | 100                  | %
|PAREXEL International (Hong Kong) Company Limited  |  | 100                  | %
|PAREXEL Hungary Limited                            |  | 100                  | %
|BVUD Research (India) Private Limited              |  | 100                  | %
|PAREXEL International (India) Private Limited      |  | 100                  | %
|PAREXEL International Synchron Private Limited     |  | 75                   | %
|Synchron Research Services Pvt. Ltd.               |  | 19.5                 | %
|PT PAREXEL International Indonesia                 |  | 100                  | %
|PAREXEL International (Lansal) Ltd.                |  | 100                  | %
|PAREXEL International SRL                          |  | 100                  | %
|PAREXEL International Inc.                         |  | 100                  | %
|PAREXEL Korea Co., Ltd.                            |  | 100                  | %
|PAREXEL International UAB                          |  | 100                  | %
|PAREXEL International (Malaysia) SDN BHD           |  | 100                  | %
|PAREXEL International Mexico S.A. DE C.V.          |  | 100                  | %
|PAREXEL International Mexico Services S.A. DE C.V. |  | 100                  | %
|Mirai Placebo B.V.                                 |  | 100                  | %
|PAREXEL Dutch Holding C.V.                         |  | 100                  | %
|PAREXEL International Holding B.V.                 |  | 100                  | %
|PAREXEL Nederland B.V.                             |  | 100                  | %
|PAREXEL Norway AS                                  |  | 100                  | %
|PAREXEL Russia AS                                  |  | 100                  | %
|PAREXEL International (Peru) S.A.                  |  | 100                  | %
|PAREXEL Clinical Research (Philippines) Ltd. Corp. |  | 100                  | %
|PAREXEL Polska SP ZOO                              |  | 100                  | %
|PAREXEL International Romania SRL                  |  | 100                  | %
|PAREXEL International (RUS) LLC                    |  | 100                  | %
|PAREXEL International d.o.o. (Serbia)              |  | 100                  | %
|PAREXEL International (Singapore) Pte. Ltd.        |  | 100                  | %
|FARMOVS PAREXEL (Proprietary) Limited              |  | 70                   | %
|PAREXEL International (South Africa) Pty Ltd       |  | 100                  | %
|PAREXEL International Co., Ltd. (Taiwan)           |  | 100                  | %
|PAREXEL International, S.L.                        |  | 100                  | %
|PAREXEL Sweden AB                                  |  | 100                  | %
|PAREXEL IP AG                                      |  | 100                  | %
|PAREXEL International (Thailand) Co., Ltd.         |  | 100                  | %
|PAREXEL Ukraine LLC                                |  | 100                  | %
|ClinPhone Developments Ltd.                        |  | 100                  | %
|Perceptive eClinical Limited                       |  | 100                  | %
|ClinPhone Limited                                  |  | 100                  | %
|Castlegate 211 Limited                             |  | 100                  | %
|Castlegate 252 Limited                             |  | 100                  | %
|Castlegate 283 Limited                             |  | 100                  | %
|Castlegate 284 Limited                             |  | 100                  | %
|Random Access Services Ltd.                        |  | 100                  | %
|Allo Language Services Ltd.                        |  | 100                  | %



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|                                                       |  |                      |  
|------------------------------------------------------ |  | -------------------- | -
|SUBSIDIARY                                             |  | Percentage Ownership |  
|FWPS Group Ltd.                                        |  | 100                  | %
|PAREXEL International (UK) Limited                     |  | 100                  | %
|PAREXEL International Holding UK Limited               |  | 100                  | %
|PAREXEL International Limited                          |  | 100                  | %
|PAREXEL MMS Europe Limited                             |  | 100                  | %
|Perceptive Informatics UK Limited                      |  | 100                  | %
|ClinPhone California Inc.                              |  | 100                  | %
|PPSI, Inc.                                             |  | 100                  | %
|Bio/pharmAccelerator Management Company LLC            |  | 100                  | %
|Perceptive Services, Inc.                              |  | 100                  | %
|DataLabs Inc.                                          |  | 100                  | %
|MMSQI, Inc.                                            |  | 100                  | %
|PAREXEL Government Services, Inc.                      |  | 100                  | %
|PAREXEL International Dutch Holding LLC                |  | 100                  | %
|PAREXEL International Holding Corporation              |  | 100                  | %
|PAREXEL International, LLC                             |  | 100                  | %
|PAREXEL Medical Marketing Services (NJ), LLC           |  | 100                  | %
|Perceptive Informatics, Inc.                           |  | 100                  | %
|PAREXEL International Trust                            |  | 100                  | %
|The Center for Bio-Medical Communication, Inc.         |  | 100                  | %
|PAREXEL (IMC), Inc.                                    |  | 100                  | %
|PAREXEL International Medical Marketing Services, Inc. |  | 100                  | %