American Pacific Corporation

American National Insurance Company

American Lithium Minerals

American International Group

American Independence Corporation

American Greetings Corporation

American Express Company

American Electric Technologies Inc.

American Eagle Outfitters Inc.

American Campus Communities Inc.

American Business Bank

America West Resources Inc.

America Service Group Inc.

Ameriana Bancorp

Ameren Corporation

AMCORE Financial Inc.

Amcol International Corporation

Ambac Financial Group Inc.

AMB Property Corporation

Amazon.com Inc.

Amarin Corporation

The Amacore Group Inc.

Alvarion Ltd.

AltiGen Communications Inc.

Altera Corporation

Alphatec Holdings Inc.

Almost Family Inc.

Allied Motion Technologies Inc.

Allied Healthcare Products Inc.

Alliant Techsystems Inc.

Alliance Holdings GP L.P.

Alliance HealthCard Inc.

AFOP – Alliance Fiber Optic Products Inc.

Alliance Bankshares Corporation

Alliance Bancorp Inc of Pennsylvania

Allergan Inc.

Allegheny Technologies Inc.

Albany Molecular Research Inc.

Alaska Communications Systems Group Inc.

Akamai Technologies Inc.

AirTran Holdings Inc.

Airgas Inc.

Air Products & Chemicals Inc.

Agilent Technologies Inc.

AGCO Corporation

Affymetrix Inc.

Aetna Inc.

Aerogrow International Inc.

AeroCentury Corp.

Aehr Test Systems