EX-21.1 13 b68103biexv21w1.htm EX-21.1 SUBSIDIARIES exv21w1
 

Exhibit 21
BIOGEN IDEC INC.
The following is a list of subsidiaries of the Company as of December 31, 2007, omitting some subsidiaries which, considered in the aggregate, would not constitute a significant subsidiary.
     
    STATE OR OTHER JURISDICTION OF
SUBSIDIARY   INCORPORATION OR ORGANIZATION
 
   
Biogen Idec MA Inc.
  Massachusetts
Biogen Idec Holding I Inc.
  Delaware
Biogen Idec Holding II Inc.
  Delaware
Biogen Idec Realty Corporation
  Massachusetts
Biogen Idec Realty Limited Partnership
  Massachusetts
Biogen Idec U.S. Corporation
  Massachusetts
Biogen Idec U.S. Limited Partnership
  Massachusetts
Biogen Idec Realty LLC
  Delaware
The Biogen Idec Foundation Inc.
  Massachusetts
Biogen Idec U.S. Pacific LLC
  Delaware
Biogen Idec U.S. West Corporation
  Delaware
Biogen Idec Nobel Research Center, LLC
  Delaware
Conforma Therapeutics Corporation
  Delaware
Syntonix Pharmaceuticals, Inc.
  Delaware
Biogen Idec Canada Inc.
  Delaware
Biogen Idec SRO, Inc.
  Delaware
 
   
Biogen Idec (Argentina) SRL
  Argentina
Biogen Idec Australia PTY Ltd
  Australia
Biogen Idec Austria GmbH
  Austria
Biogen Idec Belgium N.V.
  Belgium
Biogen Idec Brazil Produtos Farmaceuticos LTDA
  Brazil
Biogen Idec (Czech Republic) s.r.o.
  Czech Republic
Biogen Idec (Denmark) A/S
  Denmark
Biogen Idec (Denmark) Manufacturing ApS
  Denmark
Biogen Idec Holding APS
  Denmark
Biogen Idec Finland OY
  Finland
Biogen Idec France S.A.S.
  France
Biogen Idec GmbH
  Germany
Biogen Idec Biotech India Pvt. Ltd.
  India
Biogen Idec (Ireland) Ltd.
  Ireland
Biogen Idec Japan Ltd.
  Japan
Biogen Idec Mexico S. DE R.L. DE C.V.
  Mexico
Biogen Idec B.V.
  The Netherlands
Biogen Idec International B.V.
  The Netherlands
Biogen Idec Norway AS
  Norway
Biogen Idec NZ Ltd.
  New Zealand
Biogen Idec Portugal Sociedade Farmaceutica, Unipessoal, Lda.
  Portugal
Biogen Idec Iberia, S.L.
  Spain
Biogen Idec (Slovak Republic) s.r.o.
  Slovak Republic
Biogen Idec promet s farmacevtskimi in biotehnoloskimi proizvodi d.o.o
  Slovenia
Biogen Idec International GmbH
  Switzerland
Biogen Idec Ltd.
  UK
BiogenIdec Sweden AB
  Sweden
Biogen-Dompé AG
  Switzerland
Biogen-Dompé SRL
  Italy
Biogen Idec K/S
  Denmark
Biotech Manufacturing CV
  The Netherlands