| AMERICAN SPEECH-LANGUAGE-HEARING ASSOCIATION | Rockville | MD | 1 | 2026-05-17 |
| AMERICAN STAFFING ASSOCIATION | Alexandria | VA | 1 | 2026-05-17 |
| AMERICAN SUGARBEET GROWERS ASSOCIATION | WASHINGTON | DC | 1 | 2026-05-17 |
| AMERICAN SUPERCONDUCTOR CORPORATION | Ayer | MA | 1 | 2026-05-17 |
| AMERICAN THORACIC SOCIETY | NEW YORK | NY | 1 | 2026-05-17 |
| AMERICAN TORT REFORM ASSOCIATION | WASHINGTON | DC | 2 | 2026-05-17 |
| AMERICAN TRAIN DISPATCHERS ASSOCIATION | Cleveland | OH | 1 | 2026-05-17 |
| AMERICAN UROLOGICAL ASSOCIATION | LINTHICUM HEIGHTS | MD | 1 | 2026-05-17 |
| AMERICAN VETERINARY MEDICAL ASSOCIATION | Washington | DC | 1 | 2026-05-17 |
| AMERICAN WILD HORSE CAMPAIGN | Davis | CA | 2 | 2026-05-17 |
| AMERICAN ZOO AND AQUARIUM ASSOCIATION | SILVER SPRING | MD | 1 | 2026-05-17 |
| AMERICANS FOR NONSMOKERS' RIGHTS | BERKELEY | CA | 1 | 2026-05-17 |
| AMERICANS FOR PROSPERITY | Arlington | VA | 1 | 2026-05-17 |
| AMERICANS FOR THE ARTS | Washington | DC | 1 | 2026-05-17 |
| AMFAR THE FOUNDATION FOR AIDS RESEARCH | Washington | DC | 1 | 2026-05-17 |
| AMH | Washington | DC | 2 | 2026-05-17 |
| AMT - THE ASSOCIATION FOR MANUFACTURING TECHNOLOGY | mclean | VA | 1 | 2026-05-17 |
| ANCHOR & ARROW LLC | Washington | DC | 22 | 2026-05-17 |
| ANCHOR & ARROW STRATEGIES | Austin | TX | 1 | 2026-05-17 |
| ANCHOR GROUP LLC | Washington | DC | 1 | 2026-05-17 |
| AND PARTNERS LLC | Washington | DC | 4 | 2026-05-17 |
| ANDERSON & CALLENDER | Suitland | MD | 1 | 2026-05-17 |
| ANDREAE & ASSOCIATES | Washington | DC | 1 | 2026-05-17 |
| ANIMAL WELFARE INSTITUTE FKA SOCIETY FOR ANIMAL PROTECTIVE LEGISLATION | Washington | DC | 1 | 2026-05-17 |
| ANIMAL WELLNESS ACTION | Washington | DC | 1 | 2026-05-17 |
| ANN & ROBERT H. LURIE CHILDREN'S HOSPITAL OF CHICAGO | Chicago | IL | 1 | 2026-05-17 |
| ANZU STRATEGIES | Mount Vernon | ME | 2 | 2026-05-17 |
| APCO WORLDWIDE LLC | Washington | DC | 11 | 2026-05-17 |
| APEX CLEAN ENERGY, INC | Charlottesville | VA | 1 | 2026-05-17 |
| APOLLO GOVERNMENT RELATIONS | Oakland | MD | 3 | 2026-05-17 |
| APOLLO RESEARCH PBC | Wilmington | DE | 1 | 2026-05-17 |
| APPALACHIAN CITIZENS LAW CENTER INC. | Whitesburg | TN | 1 | 2026-05-17 |
| APPIAN | INDIANAPOLIS | IN | 4 | 2026-05-17 |
| APPLIED MATERIALS, INC | WASHINGTON | DC | 1 | 2026-05-17 |
| APPRAISAL INSTITUTE | Washington | IL | 1 | 2026-05-17 |
| APTIV, PLC | Boston | MA | 1 | 2026-05-17 |
| AQUIA GROUP INC. (F.K.A. AQUIA GROUP LLC) | McLean | VA | 14 | 2026-05-17 |
| ARDEIDAE GROUP LLC | Washington | DC | 2 | 2026-05-17 |
| ARENTFOX SCHIFF LLP | Washington | DC | 81 | 2026-05-17 |
| ARETE PUBLIC AFFAIRS | Austin | TX | 2 | 2026-05-17 |
| ARGUS MEDIA, INC. | Houston | TX | 1 | 2026-05-17 |
| ARIANESPACE, INC | WASHINGTON | DC | 1 | 2026-05-17 |
| ARIZONA COTTON GROWERS ASSOCIATION | Tempe | AZ | 1 | 2026-05-17 |
| ARIZONA STATE UNIVERSITY | TEMPE | AZ | 1 | 2026-05-17 |
| ARK STRATEGY | Cheverly | MD | 39 | 2026-05-17 |
| ARMER PUBLIC AFFAIRS | Columbia | MO | 3 | 2026-05-17 |
| ARMORY HILL ADVOCATES (FORMERLY KNOWN AS RAWLSON POLICY GROUP) | Orlando | FL | 6 | 2026-05-17 |
| ARNALL GOLDEN GREGORY, LLP | Washington | DC | 2 | 2026-05-17 |
| ARNOLD & PORTER KAYE SCHOLER LLP | Washington | DC | 17 | 2026-05-17 |
| ARROW GROUP CONSULTING, LLC | Tallahassee | FL | 2 | 2026-05-17 |
| ARTBA | WASHINGTON | DC | 1 | 2026-05-17 |
| ARTICLE ONE GROUP, LLC | Cheverly | MD | 2 | 2026-05-17 |
| ASCEND CONSULTING | Fairfax | VA | 13 | 2026-05-17 |
| ASCENDIS PHARMA, INC. | PALO ALTO | CA | 1 | 2026-05-17 |
| ASCENT PUBLIC POLICY & STRATEGIC COMMUNICATIONS, LLC | McLean | VA | 3 | 2026-05-17 |
| ASG CORP. | McLean | VA | 4 | 2026-05-17 |
| ASGA FISHERIES POLICY ALLIANCE INC | Washington | DC | 2 | 2026-05-17 |
| ASHLAND INC (PREVIOUSLY KNOWN AS ASHLAND LLC) | Covington | KY | 2 | 2026-05-17 |
| ASML US, LLC | Chandler | AZ | 1 | 2026-05-17 |
| ASSOCIATION FOR BEHAVIORAL HEALTH AND WELLNESS | Washington | DC | 1 | 2026-05-17 |
| ASSOCIATION FOR CLINICAL ONCOLOGY | Alexandria | VA | 1 | 2026-05-17 |
| ASSOCIATION FOR DIAGNOSTICS & LABORATORY MEDICINE (FORMERLY AACC) | WASHINGTON | DC | 1 | 2026-05-17 |
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| ASSOCIATION OF AMERICAN MEDICAL COLLEGES | Washington | DC | 1 | 2026-05-17 |
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| ASSOCIATION OF AMERICAN RAILROADS | WASHINGTON | DC | 1 | 2026-05-17 |
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| ASSOCIATION OF HOME APPLIANCE MANUFACTURERS | WASHINGTON | DC | 1 | 2026-05-17 |
| ASSOCIATION OF METROPOLITAN WATER AGENCIES | Washington | DC | 2 | 2026-05-17 |
| ASSOCIATION OF NATIONAL ADVERTISERS, INC. | WASHINGTON | DC | 1 | 2026-05-17 |
| ASSOCIATION OF THE UNITED STATES ARMY, (INC.) | ARLINGTON | VA | 1 | 2026-05-17 |
| ASSOCIATION OF THE UNITED STATES NAVY | Alexandria | VA | 3 | 2026-05-17 |
| AT-SEA PROCESSORS ASSOCIATION | Seattle | WA | 1 | 2026-05-17 |
| ATA ACTION | WASHINGTON | DC | 2 | 2026-05-17 |
| ATCITTY & VAN NORMAN LAW, LLC | Washington | DC | 1 | 2026-05-17 |
| ATHENAHEALTH, INC. | Boston | MA | 1 | 2026-05-17 |
| ATLANTIC STRATEGIES GROUP LLC | Washington D.C. | DC | 3 | 2026-05-17 |
| ATLAS CROSSING LLC | Washington | DC | 14 | 2026-05-17 |
| ATOLLETC LLC | Springfield | IL | 4 | 2026-05-17 |
| ATRIO CONSULTING GROUP, LLC | Washington | DC | 2 | 2026-05-17 |
| ATS COMMUNICATIONS, INC. (DBA SILBEY STRATEGIES) | Washington | DC | 40 | 2026-05-17 |
| AUBURN HEALTH STRATEGIES, LLC | ARLINGTON | VA | 3 | 2026-05-17 |
| AUDAX STRATEGIES | Washington | DC | 4 | 2026-05-17 |
| AURORA INNOVATION, INC | Sausalito | CA | 1 | 2026-05-17 |
| AUSTAL USA | Mobile | AL | 1 | 2026-05-17 |
| AUSTIN LEGAL AND PUBLIC AFFAIRS PLLC | Austin | TX | 2 | 2026-05-17 |
| AUTO CARE ASSOCIATION | BETHESDA | MD | 1 | 2026-05-17 |
| AUTONOMOUS VEHICLE INDUSTRY ASSOCIATION | Washington | DC | 1 | 2026-05-17 |
| AVAAZ FOUNDATION | New York | NY | 1 | 2026-05-17 |
| AVENUE SOLUTIONS | Washington | DC | 7 | 2026-05-17 |
| AVISE SOLUTIONS | Rockville | MD | 3 | 2026-05-17 |
| AVISON STRATEGIES LLC | Washington | DC | 4 | 2026-05-17 |
| AVIVA STRATEGIES (FKA MGB CONSULTING) | Washington | DC | 6 | 2026-05-17 |
| AVOQ, LLC | Washington | DC | 4 | 2026-05-17 |
| AXADVOCACY GOVERNMENT RELATIONS | Washington | DC | 41 | 2026-05-17 |
| AXON ENTERPRISE | Scottsdale | AZ | 2 | 2026-05-17 |
| AZ DC CONSULTING, LLC | Phoenix | AZ | 14 | 2026-05-17 |
| AZOA SERVICES CORP(ALLIANZ OF AMERICA) FORMERLY AZOA SERIVCES CORP/FIREMAN'S FUND(ALLIANZ OF AMERICA | WASHINGTON | DC | 1 | 2026-05-17 |