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A

• Abbott
• AbbVie Inc.
• Agilent Technologies, Inc.
• Airlines for America
• Akin Gump Strauss Hauer & Feld LLP
• American Chemistry Council
• American Council of Life Insurers
• American Express Company
• American Gas Association
• American Public Power Association
• American Tower Corporation
• AmerisourceBergen Corporation
• Amgen, Inc.
• Andersen Tax
• Apple
• Assurant Inc.

B

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

C

• Capitol Hill Consulting Group
• Capitol Tax Partners
• Caterpillar Inc.
• Charter Communications
• Chevron Corporation
• Citigroup
• ConocoPhillips
• Covington & Burling
• CVS Health

D

• Dell Inc.
• Deloitte Tax LLP
• Dentons
• Dow Chemical Company, The

E

• Edge Creek Partners
• Edison Electric Institute
• Eide Bailly
• Eli Lilly and Company
• Exxon Mobil Corporation
• EY

F

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

G

• General Dynamics
• General Electric Company
• Gilead
• Global Business Alliance
• Grant Thornton LLP

H

• Hewlett-Packard Enterprise
• Hogan Lovells

I

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

J

• Johnson & Johnson

K

• KPMG LLP

L

• Leggett & Platt, Inc.
• Lockheed Martin Corporation
• Loews Corporation

M

• Mars, Incorporated
• Masco Corporation
• Mastercard
• McCormick & Co., Inc.
• McDermott Will & Emery LLP
• McKesson Corporation
• Mehlman Castagnetti Rosen & Thomas
• Microsoft Corporation
• Miller & Chevalier Chartered
• Morgan, Lewis & Bockius LLP
• Morgan Stanley
• Munk Policy & Law PLLC

N

• Nareit
• National Association of Mutual Insurance Companies
• Netflix
• Nike
• Northwestern Mutual
• Norton Rose Fulbright US LLP
• Novo Nordisk

O

• Ogilvy Government Relations
• Oracle

P

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

Q

R

• Raytheon Technologies Corporation
• Regeneron
• Retail Industry Leaders Association (RILA)

S

• Salt River Project
• SAP
• Shell Oil Company
• Signature Aviation
• Skadden, Arps, Slate, Meagher & Flom LLP
• Software Finance & Tax Executives Council
• Steptoe & Johnson
• Sullivan & Cromwell

T

• T-Mobile
• Texas Instruments

U

• Uber
• United Parcel Service
• U.S. Chamber of Commerce

V

• Van Ness Feldman
• Verizon
• Vertex Inc.

W

• Walmart
• Walt Disney Company, The

X

• Xerox Corporation

Y

Z

• Zurich