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A

• Abbott
• AbbVie Inc.
• Agilent Technologies, Inc.
• Airlines for America
• Altria Client Services, LLC
• American Chemistry Council
• American Council of Life Insurers
• American Express Company
• American Forest & Paper Association
• American Gas Association
• American Petroleum Institute
• American Public Power Association
• American Tower Corporation
• Amgen, Inc.
• Andersen Tax
• Apple
• Assurant Inc.

B

• Baker & Hostetler
• Bank of America
• BASF
• BBA Aviation PLC
• Biotechnology Innovation Organization (BIO)
• Boeing Company, The
• BP America
• Bracewell
• Brown-Forman
• Brownstein Hyatt Farber Schreck
• Business Roundtable

C

• Capital One
• Capitol Hill Consulting Group
• Capitol Tax Partners
• Caterpillar Inc.
• Cellphire, Inc.
• Chevron Corporation
• Citigroup
• ConocoPhillips
• Covanta Energy Corporation
• Covington & Burling, LLP
• CVS Health

D

• Davis & Harman LLP
• DCI Group
• Dell Inc.
• Deloitte Tax LLP
• Dentons
• Dow Chemical Company, The

E

• Edison Electric Institute
• Eli Lilly and Company
• Exxon Mobil Corporation
• EY

F

• Facebook Inc.
• Federal Policy Group
• FedEx Corporation
• Ford Motor Company
• FTI Consulting

G

• General Electric Company
• Grant Thornton LLP

H

• Hess Corporation
• Hewlett-Packard Enterprise (HPE)
• Hogan Lovells

I

• IBM
• Illinois Tool Works (ITW)
• Intel Corporation
• International Paper
• Interpublic Group Inc.
• Investment Company Institute
• Ivins, Phillips & Barker Chartered

J

• Johnson & Johnson

K

• K&L Gates LLP
• KPMG LLP

L

• Lockheed Martin Corporation
• Loews Corporation

M

• Mars, Incorporated
• Masco Corporation
• McCormick & Co., Inc.
• McDermott Will & Emery LLP
• McDonald’s Corporation
• McKesson Corporation
• Mehlman Castagnetti Rosen & Thomas
• MetLife
• Microsoft Corporation
• Miller & Chevalier Chartered
• Mohawk Industries, Inc.
• Morgan, Lewis & Bockius LLP
• Morgan Stanley
• Mutual of Omaha

N

• Nareit
• National Association of Mutual Insurance Companies
• News Media Alliance
• Nickles Group, The
• Northwestern Mutual
• Norton Rose Fulbright US LLP

O

• Ogilvy Government Relations

P

• Park Hotels & Resorts Inc.
• PepsiCo, Inc.
• Pfizer Inc.
• Phillips 66
• Plasma Protein Therapeutics Association
• Procter & Gamble
• Prudential
• PwC

Q

R

• Raytheon Company
• Resolute Forest Products
• Retail Industry Leaders Association (RILA)
• Rimini Street, Inc.

S

• Shell Oil Company
• SIFMA
• Skadden, Arps, Slate, Meagher & Flom LLP
• Software Finance & Tax Executives Council
• Solar Energy Industries Association
• Squire Patton Boggs LLP
• Steptoe & Johnson
• Sullivan & Cromwell

T

• T-Mobile
• Tax Foundation
• TD Bank
• TE Connectivity
• Texas Instruments
• Tupperware Brands Corporation

U

• United Parcel Service
• United Technologies Corporation
• U.S. Chamber of Commerce

V

• Van Ness Feldman
• Venn Strategies
• Verizon
• Vertex Inc.
• Vinson & Elkins
• Vogel Group, The

W

• Walmart Stores, Inc.
• Walt Disney Company, The

X

• Xerox Corporation

Y

Z

• Zurich