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 |