EX-21 6 a2190975zex-21.htm EXHIBIT 21
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EXHIBIT 21

AFFYMETRIX, INC.
LIST OF SUBSIDIARIES

Affymetrix, UK Ltd, wholly-owned subsidiary incorporated in the United Kingdom and doing business under such name.

Affymetrix France S.A.S., wholly-owned subsidiary incorporated in France and doing business under such name.

Affymetrix GmbH, wholly-owned subsidiary incorporated in Germany and doing business under such name.

Affymetrix Japan K.K., a wholly-owned subsidiary incorporated in Japan and doing business under such name.

Affymetrix Pte Ltd, wholly-owned subsidiary incorporated in Singapore and doing business under such name.

Affymetrix Italia, SRL, wholly-owned subsidiary incorporated in Italy and doing business under such name.

Anatrace, Inc., wholly-owned subsidiary incorporated in Ohio and doing business under such name.*

Genetic MicroSystems, Inc., wholly-owned subsidiary incorporated in Massachusetts and doing business under such name.

Neomorphic, Inc., wholly-owned subsidiary incorporated in California and doing business under such name.

Panomics, Inc. wholly-owned subsidiary incorporated in California and doing business under such name.***

Panomics SRL, wholly-owned subsidiary incorporated in Italy and doing business under such name.***

Pinecone Acquisition, Inc., wholly-owned subsidiary incorporated in California and doing business under such name.

True Materials Incorporated, wholly-owned subsidiary incorporated in Delaware and doing business under such name.**

USB Corporation, wholly-owned subsidiary incorporated in Ohio and doing business under such name.*

USB Europe, GmbH, wholly-owned subsidiary incorporated in Germany and doing business under such name.*

*: This entity became a wholly-owned subsidiary of Affymetrix, Inc. on January 30, 2008.
**: This entity became a wholly-owned subsidiary of Affymetrix, Inc. on July 17, 2008.
***: This entity became a wholly-owned subsidiary of Affymetrix, Inc. on December 5, 2008.