Exhibit 21.1

PAREXEL INTERNATIONAL CORPORATION

LIST OF SUBSIDIARIES OF THE COMPANY

(As of June 30, 2011)

Subsidiary Name	Location	Ownership %
PAREXEL International S.A.	Argentina		100	%
PAREXEL International Pty Ltd	Australia		100	%
PAREXEL Belgium SPRL	Belgium		100	%
PAREXEL International Pesquisas Clinicas Ltda.	Brazil		100	%
PAREXEL International (BVI) Corp.	British Virgin Islands		100	%
PAREXEL International (Canada), Ltd.	Canada, New Brunswick		100	%
PAREXEL International (Cayman) Corp.	Cayman Islands		100	%
PAREXEL International y Compania Limitada	Chile		100	%
PAREXEL China Co. Ltd.	China, Peoples Republic of		100	%
PAREXEL International Co. Ltd.	China, Republic of (Taiwan)		100	%
CSM Pharma Service Co. Ltd.	China, Republic of (Taiwan)		100	%
PAREXEL International Colombia SAS	Colombia		100	%
PAREXEL International d.o.o. (Croatia)	Croatia		100	%
PAREXEL International Czech Republic S.R.O.	Czech Republic		100	%
PAREXEL Denmark A/S	Denmark		100	%
PAREXEL Finland OY	Finland		100	%
PAREXEL International SARL	France		100	%
PAREXEL International GmbH	Germany		100	%
PAREXEL International Holding Germany GmbH	Germany		100	%
PAREXEL International (Hong Kong) Company Limited	Hong Kong		100	%
PAREXEL Hungary Limited	Hungary		100	%
BVUD Research (India) Private Limited	India		100	%
PAREXEL International (India) Private Limited	India		100	%
PAREXEL International Synchron Private Limited	India		100	%
Synchron Research Services Pvt. Ltd.	India		31	%
PT PAREXEL International Indonesia	Indonesia		100	%
PAREXEL International Clinical Research (Israel) Ltd.	Israel		100	%
PAREXEL International SRL	Italy		100	%
PAREXEL International Inc.	Japan		100	%
PAREXEL Korea Co., Ltd.	Korea, Republic of		100	%
PAREXEL International UAB	Lithuania		100	%
PAREXEL International (Malaysia) SDN BHD	Malaysia		100	%
PAREXEL International Mexico S.A. DE C.V.	Mexico		100	%
PAREXEL International Mexico Services S.A. DE C.V.	Mexico		100	%
Mirai Placebo B.V.	Netherlands		100	%
PAREXEL Dutch Holding C.V.	Netherlands		100	%
PAREXEL International Holding B.V.	Netherlands		100	%
PAREXEL Nederland B.V.	Netherlands		100	%
PAREXEL Norway AS	Norway		100	%
PAREXEL Russia AS	Norway		100	%
PAREXEL International (Peru) S.A.	Peru		100	%
PAREXEL Clinical Research (Philippines) Ltd. Corp.	Philippines		100	%
PAREXEL Polska SP ZOO	Poland		100	%
PAREXEL International Romania SRL	Romania		100	%
PAREXEL International (RUS) LLC	Russian Federation		100	%
PAREXEL International d.o.o. (Serbia)	Serbia		100	%
PAREXEL International (Singapore) Pte. Ltd.	Singapore		100	%
FARMOVS PAREXEL (Proprietary) Limited	South Africa		70	%
PAREXEL International (South Africa) Pty Ltd	South Africa		100	%
PAREXEL International, S.L.	Spain		100	%
PAREXEL Sweden AB	Sweden		100	%

Subsidiary Name	Location	Ownership %
PAREXEL IP AG	Switzerland		100	%
PAREXEL International (Thailand) Co., Ltd.	Thailand		100	%
PAREXEL Ukraine LLC	Ukraine		100	%
ClinPhone Development Ltd.	United Kingdom		100	%
Perceptive eClinical Limited	United Kingdom		100	%
ClinPhone Limited	United Kingdom		100	%
Castlegate 211 Limited	United Kingdom		100	%
Castlegate 252 Limited	United Kingdom		100	%
Castlegate 283 Limited	United Kingdom		100	%
Castlegate 284 Limited	United Kingdom		100	%
Random Access Services Ltd.	United Kingdom		100	%
‘Allo Language Services Ltd.	United Kingdom		100	%
FWPS Group Ltd.	United Kingdom		100	%
PAREXEL International (UK) Limited	United Kingdom		100	%
PAREXEL International Holding UK Limited	United Kingdom		100	%
PAREXEL International Limited	United Kingdom		100	%
PAREXEL MMS Europe Limited	United Kingdom		100	%
Perceptive Informatics UK Limited	United Kingdom		100	%
ClinPhone California Inc.	US, California		100	%
PPSI, Inc.	US, Connecticut		100	%
Bio/pharmAccelerator Management Company LLC	US, Delaware		100	%
Perceptive Services, Inc.	US, Delaware		100	%
DataLabs Inc.	US, Delaware		100	%
MMSQI, Inc.	US, Delaware		100	%
PAREXEL Government Services, Inc.	US, Delaware		100	%
PAREXEL International Dutch Holding LLC	US, Delaware		100	%
PAREXEL International Holding Corporation	US, Delaware		100	%
PAREXEL International, LLC	US, Delaware		100	%
PAREXEL Medical Marketing Services (NJ), LLC	US, Delaware		100	%
Perceptive Informatics, Inc.	US, Delaware		100	%
PAREXEL International Trust	US, Massachusetts		100	%
The Center for Bio-Medical Communication, Inc.	US, New Jersey		100	%
PAREXEL (IMC), Inc.	US, Pennsylvania		100	%
PAREXEL International Medical Marketing Services, Inc.	US, Virginia		100	%