Cliff Rothenstein has more than 30 years of congressional and federal executive experience. Prior to joining K&L Gates, he served as Director of Legislative Affairs for the Federal Highway Administration (FHWA). In this capacity, Mr. Rothenstein worked on a daily basis with the FHWA Administrator, Deputy Administrator, and Deputy Secretary of the U.S. Department of Transportation (DOT). During Mr. Rothenstein's tenure at FHWA, he led the development and advocacy efforts on legislation to reauthorize the nation's surface transportation law where he played a significant role in developing and recommending to the FHWA Administrator and to other DOT executives proposed changes to the law to streamline project delivery and expand investments in highways, bridges, and multimodal transportation projects. Mr. Rothenstein also coordinated FHWA's discretionary grant programs that fund highway and bridge improvement projects and managed FHWA's relationships with Congress on highway-specific projects and issues. In addition to his tenure at FHWA, Mr. Rothenstein served as a senior advisor on the Senate Environment and Public Works Committee which has jurisdiction over environment and surface transportation issues. He led the Committees efforts on the reauthorization of Superfund, the Resource Conservation and Recovery Act, and the Clean Water and Safe Drinking Water Acts. Mr. Rothenstein also served for 20 years at the Environmental Protection Agency (EPA), including as the Deputy Assistant Administrator and Director of the Office of Underground Storage Tanks. He has represented clients at the intersection of environmental, energy, transportation, and infrastructure policy and regulation, including advising clients on Superfund, the Clean and Safe Drinking Water Acts, the Water Resources Development Act, and the Clean Air and Resource Conservation and Recovery Acts; National Environmental Policy Act strategies for major transportation and energy infrastructure projects; funding opportunities including TIGER grant funding; and issues related to tolling of interstates.
1425 K Street NW, Suite 1010, Washington, DC, 20005, 
401 9th Street NW, Suite 550, Washington, DC, 20004, 
300 New Jersey Avenue NW, Suite 1075, Suite 1010, Washington, DC, 20001, 
7034034406
1425 K Street NW, Suite 1010, Washington, DC, 20005, 
4948 Eskridge Terrace NW, Washington, DC, 20016, 
2025807702
401 9th Street NW, Suite 550, Washington, DC, 20004, 
1201 Pennsylvania Avenue NW, Suite 530, Washington, DC, 20004, 
2028874000
2001 K Street NW, WASHINGTON, DC, 20006, 
10) Alliance for Automotive Innovation
11) Alliance for Olive Oil Quality Standards
12) Alliance of Dedicated Cancer Centers
13) Altice USA, Inc.
14) Altria Client Services LLC
17) American Bankers Association
18) American Coalition of Independent Content Production
19) American College of Gastroenterology
20) American Council of Life Insurers
23) Amgen USA, Inc.
24) Anheuser-Busch Companies, Inc.
27) Aplastic Anemia and MDS International Foundation
28) APOLLO MANAGEMENT HOLDINGS, LP
29) Appriss, Inc.
30) Arcosa, Inc.
31) Argentem Creek Partners LP
33) Associations of Mexican Tomato Growers
34) Asurion LLC
36) Athletico Physical Therapy
38) Baker Tilly Virchow Krause, LLP
39) Barrick Gold Corporation of North America Inc.
40) Bayer Corporation (FKA Monsanto Company)
42) Biotechnology Innovation Organization
43) Bloom Energy
44) Bridgestone Americas Holding, Inc.
45) Brightline Holdings LLC (fka Virgin Trains USA)
47) CalOptima
48) Cargill, Inc.
49) Carlyle Investment Management fka The Carlyle Group
50) CF Industries, Inc. and CF Industries Holdings, Inc
51) Charter Communications, Inc.
55) Citizens for Responsible Energy Solutions
56) City of Houston
58) City of Vallejo, California
59) Coalition for 21st Century Patent Reform
60) Coalition to Heal Invisible Wounds
62) Comite Interprofessionnel du Vin de Champagne
63) Connected Nation Development Corporation
64) Consumer Technology Association
65) Cook Group Inc.
67) CoreCivic, Inc.
69) Cruise Lines International Association
70) Cumberland Community Improvement District
71) CVS Health
72) DaVita, Inc.
74) DoorDash
77) EMVCo, LLC
80) Equifax Inc.
81) Esquel Enterprises Limited
82) EXXON MOBIL CORP
85) FireEye, Inc.
86) FireKeepers Development Authority
90) FMR LLC
93) Foothill/Eastern Transportation Corridor Agency
94) Fort Lauderdale Downtown Development Authority
96) Gap Inc.
99) Genentech Inc
100) George Kaiser Family Foundation
101) GGV Management LLC
102) Gila River Indian Community
104) Global Medical Response, Inc.
105) GOJO Industries
106) Goya Foods Inc.
107) HawkEye 360 Inc.
108) HDR, Inc.
109) Healthcare Leadership Council
110) HerdX
111) Hershey Company
112) Hill-Rom
113) Hillwood Development Company, LLC
114) Ho-Chunk Inc.
116) Houchens Industries
118) Humane Society Legislative Fund
119) IMCS Group Inc.
120) Indigo Ag
121) Innovation Alliance
122) Inseego Corp.
123) International Business Machines Corporation
124) International Council of Shopping Centers
125) International Paper
126) Keidanren
127) KEWA Financial Inc.
128) Kingston Technology
129) Koch Companies Public Sector
130) Kohlberg Kravis Roberts & Company
131) KPC Development Company LLC
132) LanzaTech Inc.
133) Laureate Education, Inc. (FKA Laureate International Universities)
134) Let'sGetChecked
139) Liberty Mutual Insurance Company
140) LOreal USA
141) Lyft, Inc.
142) Mammoth Energy Services, Inc.
143) Mashantucket Pequot Tribal Nation
144) McKesson Corporation
145) MDIF Media Partners I, LP
146) Meta Aerospace
147) MetaBank, N.A.
148) Millennium Health
149) Mobility Capital Finance, Inc. dba MoCaFi
150) Motion Picture Association of America
151) National Association of REALTORS
152) National Association of Theatre Owners
153) National Cotton Council of America
154) National Immigration Law Center
155) National Independent Venue Association
156) National Thoroughbred Racing Association
157) NCTA-The Internet & Television Association
158) New Venture Fund
159) NextEra Energy, Inc.
160) Nippon Telegraph and Telephone Corporation
161) Oaktree Capital Management
162) OC Oerlikon Management AG
163) Oneida Indian Nation
165) Owens & Minor, Inc.
166) Pacific Architects and Engineers, LLC
167) Palantir Technologies, Inc.
168) Partnership for Job Creation
169) Pebble Limited Partnership
170) Pechanga Band of Luiseno Mission Indians
171) Penobscot Nation
172) Pfizer, Inc.
173) Pharmaceutical Research and Manufacturers of America
174) Pipe Line Contractors Association
176) Polaris Industries
177) Pompeian, Inc
178) Port of Long Beach
179) Professional Background Screeners Association fka NAPBS
180) Puerto Rico Statehood Council
182) Raytheon Technologies Corporation and Affiliates (fka United Technologies Corp)
183) ResMed, Inc.
184) Restaurant Brands International Inc. (RBI)
185) Rochester Genesee Regional Transportation Authority
187) RP Management, LLC
188) San Manuel Band of Mission Indians
189) Semiconductor Manufacturing International Corporation
191) Shatterproof
192) Siemens Corporation
193) Sight Sciences, Inc.
194) Signature Flight Support Corporation
195) Society to Improve Diagnosis in Medicine
196) Solano Transportation Authority
198) Southwest Research Institute
199) Stanley Black & Decker, Inc.
200) Sumitomo Rubber Industries Ltd.
201) Surgery Partners
202) Syracuse University
203) TE Connectivity
204) Texas Association for Home Care & Hospice
205) Texas Public Policy Foundation
206) The Alliance for Trade Enforcement (AFTE) fka (AFTI)
207) The Center for a Free Economy
208) The Michaels Companies, Inc.
209) The Puerto Rico Equality Forum
210) The Seneca Nation of Indians
211) The Strategic Group
212) Tile
213) Total Administrative Services Corporation
214) TransUnion
216) Trinity Industries
217) Twenty Holdings Inc
218) U.S. Chamber of Commerce Center for Capital Markets Competitiveness
219) U.S. Chamber of Commerce Institute for Legal Reform
221) United States Pharmacopeial Convention
222) Unity Aluminum (fka Braidy Industries)
224) UofL Health, Inc.
225) US Physician Partners (Informal Coalition)
226) UT-Carrier
227) Vallourec USA Corporation
228) Varian Medical Systems, Inc.
230) Visa, U.S.A., Inc.
231) VIZIO, Inc.
232) Volkswagen Group of America, Inc.
233) Wabash Valley Resources, LLC
234) Xenex Disinfection Services, LLC
235) Yacht Haven USVI LLC
236) Zelis Healthcare Corporation
238) ZTE Corporation
2025807709
401 9th Street, NW, Suite 550, Washington, DC, 20004, 
1201 Pennsylvania Avenue NW, Suite 530, Washington, DC, 20004, 
2026613868
1601 K Street, NW, Washington, DC, 20006, 
2) AGC Flat Glass North America, Inc.
3) AIRPORT MINORITY ADVISORY COUNCIL
6) ALTERNATIVE INVESTMENT MANAGEMENT ASSOCIATION LIMITED
7) AMERICAN BUREAU OF SHIPPING
9) American Commercial Space Innovators
10) American Fuel and Petrochemical Manufacturers
11) AMERICAN MARITIME PARTNERSHIP
12) AMERICAN PYROTECHNICS ASSOCIATION
13) American Roll-on Roll-off Carrier Group, Inc.
14) AMERICAN SECURITY ACTION FUND, INC.
15) AMERICAN SMALL MANUFACTURING COALITION
16) American Superconductor Corporation
17) American Tower Corporation
18) AMERICAN WATER
20) Ansys, Inc.
23) Association of Washington Business
24) Astranis Space Technologies Corp.
30) BLUE ORIGIN, LLC
31) BNSF RAILWAY CO.
32) Boeing Employees' Credit Union
33) Boulder Capital Partners OZB, LLC
35) Brightline Holdings LLC f/k/a Virgin Trains USA LLC
37) BUSINESS LEADERS FOR MICHIGAN
38) ByteDance Inc.
39) California Public Employees' Retirement System
41) Capital SouthEast Connector Joint Powers Authority
42) Catalyst Old River Hydroelectric Limited Partnership
43) CERES, INC.
44) Charles River Laboratories International, Inc.
46) CHSPSC, LLC
47) CHURCH ALLIANCE
50) Clark Street Associates LLC on behalf of PSIQuantum
51) Clark Street Associates on behalf of Bright Machines
52) Clark Street Associates on behalf of Lattice Semiconductor
53) Clark Street Associates on behalf of TruckLabs
54) Clark Street Associates on behalf of Western Digital
55) Clark Street on behalf of Qorvo
56) Cleco Power LLC
57) CMS ENERGY CORP.
58) Coalition for Energy Efficient Jobs & Investment
60) COMMERCIAL SPACEFLIGHT FEDERATION
61) Commonwealth Fusion Systems LLC
62) Community Capital Management, LLC d/b/a CRAFund Advisory, Inc.
64) Conservation International Foundation
65) CONSORTIUM OF STATE MARITIME ACADEMIES
66) Consumer Technology Association
67) Cumberland County Hospital System d/b/a Cape Fear Valley Health System
69) Disability Benefits Deadline Initiative
71) Edelman Financial Engines f/k/a Financial Engines
72) ENVIRONMENTAL DEFENSE ACTION FUND
73) ENVIRONMENTAL DEFENSE FUND
74) Equinix, Inc.
75) Financial Accounting Foundation
76) FinCom Ltd.
77) First Trust Portfolios L.P.
79) Fleet Energy America, Inc.
80) Forterra, Inc.
81) G.W. PEOPLES CONTRACTING CO. INC.
82) GLOBAL ALLIANCE FOR CANNABIS COMMERCE
84) Great Elm Capital Group, Inc.
85) GREAT LAKES METRO CHAMBERS
86) Greater Pittsburgh Chamber of Commerce
87) GREATER SPOKANE INCORPORATED
89) Groundfish Forum
90) Gulf of Mexico Reef Fish Shareholders' Alliance
92) Hyundai Motor Company, Ltd.
94) Index Industry Association
95) Industrial Technology Institute
96) Ingo Money, Inc.
97) Inmarsat PLC d/b/a Inmarsat Aviation
98) INSTITUTE OF INTERNATIONAL CONTAINER LESSORS
99) INSTITUTE OF SCRAP RECYCLING INDUSTRIES, INC.
100) Intelligrated Systems, Inc. dba Honeywell Intelligrated
101) INTERNATIONAL HOUSING COALITION
102) James Hardie Building Products, Inc.
103) John Lefas
104) Just Greens LLC
105) LAKE CARRIERS ASSOCIATION
107) Launch on Demand Corporation
108) LEHIGH HANSON INC.
109) LIBERTY MEDIA CORPORATION
110) LOWER PASSAIC RIVER STUDY AREA COOP
111) Lynas USA, LLC
112) Macquarie Infrastructure and Real Assets, Inc.
113) MADE IN SPACE
114) MAGNOLIA LNG LLC
115) MASSACHUSETTS MARITIME ACADEMY, INC.
116) MATSON NAVIGATION
117) Maxar Technologies Holdings Inc. f/k/a SSL MDA Holdings
118) McDermott International, Inc. f/k/a CHICAGO BRIDGE & IRON (CB&I)
119) Michael L. Taylor
120) Midwater Trawlers Cooperative
121) Moda Health
122) MUSEUM OF FLIGHT
123) NANOBUSINESS COMMERCIALIZATION ASSOCIATION
124) Nanotronics Imaging, Inc.
125) National Assn for Biomedical Research
126) NATIONAL ASSOCIATION OF CHAPTER THIRTEEN TRUSTEES (NACTT)
127) NATIONAL ASSOCIATION OF TRAILER MANUFACTURERS
128) NCL CORPORATION LTD.
129) NextStep Interacative Inc.
130) Nortek Security & Control LLC
131) NORTHERN MICHIGAN UNIVERSITY
132) Olympus Power LLC
133) Oshkosh Corporation
135) PacifiCorp Energy
137) PAPER RECYCLING COALITION
138) Parsyl, Inc.
140) Pinnacle Treatment Centers
141) PITNEY BOWES
143) Poplicus Incorporated d/b/a Govini
144) Port of Moses Lake
145) Port of Portland
146) PPG Industries Inc.
147) PRIMET PRECISION MATERIALS, INC.
148) PRN Software
149) Quantum Industry Coalition
150) Qurate Retail, Inc. f/k/a LIBERTY INTERACTIVE CORPORATION
151) QVC, INC.
152) R.T. G. Furniture Corp. d/b/a Rooms to Go
153) Receivables Management Association fka DBA INTERNATIONAL
154) RenaissanceRe Holdings Ltd.
155) Resolve Marine Group, Inc.
156) Savion, LLC
157) Seastreak LLC
158) Sierra Pacific Industries
159) SIXTEEN THIRTY FUND
160) Spire Global, Inc.
162) SPRAGUE ENERGY CORP.
163) ST. LAWRENCE SEAWAY PILOTS ASSN.
165) STEELCASE, INC.
167) Sunshine Silver Mining & Refining Corporation
168) Suntory Business Expert Limited
169) Texas LNG
170) The ESOP Association
171) The First Church of Christ, Scientist
172) The World Dog Alliance Limited
173) TM3 Systems
175) TOWN OF FUQUAY-VARINA, NC
176) Tradebe Treatment and Recycling, LLC
177) Trans AstroNautica Corporation d/b/a TransAstra
178) Trans-Atlantic Business Council
179) TRANSPHORM INC.
181) TRI-CITY DEVELOPMENT COUNCIL
182) TrueBlue, Inc.
183) Turing Inc.
184) U.S. Global Leadership Campaign
185) United Catcher Boats
186) United States Cannabis Council
187) Vanguard Charitable
188) Velocys Inc
189) Veolia Nuclear Solutions f/k/a Kurion
190) Viamedia, Inc.
191) Vitalant
192) VOX Space
193) WATER INNOVATIONS ALLIANCE
194) WATER INNOVATIONS FOUNDATION
195) WESTERN GREAT LAKES PILOTS ASSN
196) WESTON SOLUTIONS
197) XO Energy, LLC
7039074343
1919 South Eads Street, ARLINGTON, VA, 22202, 
2023228070
4948 Eskridge Terrace NW, Washington, DC, 20016, 
1425 K Street NW, Suite 1010, Washington, DC, 20005, 
1225 New York Ave, NW, Suite 600, Washington, DC, 20005, 
1) 21st Century Privacy Coalition
2) Altria Client Services Inc.
4) Ambulatory Surgery Center Association
5) American Optometric Association
6) American Society of Interventional Pain Physicians
9) Community Oncology Alliance
10) Consumer Technology Association
13) DTE Energy
15) electroCore
16) Families Against Mandatory Minimums
17) Genentech
20) iDevelopment and Economic Association
21) Johnson & Johnson Services, Inc.
22) La Jolla Pharmaceutical Company
24) NantWorks
25) National Cable and Telecommunications Association
26) Novavax, Inc.
27) Omega Flex
28) OneOncology Inc.
30) RSBIX Co
31) Southern Company
32) Spectrum Pharmaceuticals, Inc
33) Swift Solar Inc
2025456102
1201 Pennsylvania Avenue NW, Suite 530, Washington, DC, 20004, 
1) Alliance for Safety and Justice
2) American Psychological Association Services, Inc. (fka APA Practice Org.)
5) Brown-Forman
6) Center for Responsible Lending
7) Center on Budget and Policy Priorities
9) Consumer Technology Association
10) Environmental Defense Action Fund
11) Expedia, Inc.
1100 New Jersey Avenue, SE, SUITE 735, WASHINGTON, DC, 20003, 
1) 21st Century Privacy Coalition
2) Altria Client Services Inc.
4) Ambulatory Surgery Center Association
5) American Optometric Association
6) American Society of Interventional Pain Physicians
8) Community Oncology Alliance
9) Consumer Technology Association
13) electroCore
14) Genentech
2022367750
975 F St NW, Suite 250, Washington, DC, 20004, 
1) Partnership Project Action Fund
3) Twin Logic on Behalf of Pandora Media, Inc
4) Twin Logic Strategies on Behalf of Carolina West Wireless
5) Twin Logic Strategies on Behalf of the Consumer Technology Association
6) Twin Logic Strategies on Behalf of the Internet Infrastructure Coalition
8) TwinLogic Strategies LLP on Behalf of Crown Castle
9) TwinLogic Strategies LLP on Behalfof International Association of Venue Managers
10) TwinLogic Strategies on Behalf of Dell USA LP
11) TwinLogic Strategies on Behalf of Lutron Electronics Co., Inc.