3M Company
Accenture
ACT
Altria Client Services, Inc.
Alkermes
Amazon.com
Amgen
Amplify
AmeriHealth Caritas 
American Electric Power
Anthem
Apple
Apollo Education Group
Astellas Pharma
AstraZeneca Pharmaceuticals
Archer Daniels Midland 
AT&T
Atria Senior Living
Bank of America
Barrick Gold of North America, Inc.
Baxter
Best Buy Co., Inc.
Blue Cross Blue Shield
BP America
CareSource
Catamaran
CenturyLink
Cerner Corporation
Chevron
Cisco Systems
Citi
The Coca-Cola Company
The College Board
Comcast Corporation
Covanta Energy
CCA
CSC
CVS Health
Daiichi Sankyo
Darden Restaurants
Deloitte
DeVry, Inc.
Dominion
The Dow Chemical Company
DTE Energy
Duke Energy
Education Management Corporation
Educational Testing Service

EMD Serono
ESRI
ExxonMobil Corporation
Ford Motor Company
Fiat Chrysler Automobiles
General Dynamics C4S
General Dynamics Information Technology
General Electric Company
General Motors
Gilead Sciences, Inc.
GlaxoSmithKline
Golden Living
Google
GTECH
Hallmark Cards, Inc.
HDR, Inc.
Hewlett-Packard Company
Hospital Corporation of America
Humana
IBM Corporation
Intel
International Paper
Intuit
Johnson & Johnson
JPMorgan Chase & Co.
Kaiser Permanente
Lundbeck
Marathon Oil
Mars
MAXIMUS
McKinsey & Company
Merck & Co., Inc.
Microsoft Corporation
Molina Healthcare, Inc.
Morgan Stanley
Motorola Solutions
Mylan Inc.
Nestle Waters North America
NIC, Inc.
Nike
Norfolk Southern
Northrop Grumman
Novartis Pharmaceuticals USA
Novo Nordisk Inc.
Oracle USA Inc.

Pearson Education
Philips
Premier
Purdue Pharma
Pfizer
The Procter & Gamble Company
Prudential Financial
ResCare
Sanofi
Samsung
SAS Institute Inc.
SCAN Health Plan
Scholastic
Sodexo USA
South Alabama Gas District
Southern Company
State Farm Insurance
T-Mobile 
Target
TEVA Pharmaceuticals USA
TIAA-CREF
Time Warner Cable
Toyota Motor North America
TransCanada
Truven Health Analytics
Unilever United States
UnitedHealth Group
Union Pacific Railroad
UPS
Verizon Communications
Walgreen Co.
Wal-Mart Stores Inc.