Lobbying firms
Every registrant in the lobbying register: firms that lobby for clients, organizations that register to lobby for themselves, and self-employed lobbyists.
12,255
registrants, A to Z
| Firm | Location | Years active |
|---|---|---|
| APPALACHIAN VOICES | Charlottesville, VA | Active 2023–2026 |
| APPIAN | INDIANAPOLIS, IN | Active 2007–2026 |
| APPIAN CONSULTING LLC | Washington, DC | Active 2013–2023 |
| APPIAN CORPORATION | McLean, VA | Active 2026 |
| APPLE INC. | WASHINGTON, DC | Active 2007–2026 |
| APPLICATION DEVELOPERS ALLIANCE | Washington, DC | Active 2013–2024 |
| APPLIED BIOSYSTEMS | Foster City, CA | Active 2007–2008 |
| APPLIED GLOBAL RESEARCH CORPORATION | Norfolk, VA | Active 2011–2013 |
| APPLIED INTUITION | Sunnyvale, CA | Active 2022–2026 |
| APPLIED MATERIALS, INC | WASHINGTON, DC | Active 2007–2026 |
| APPLIED MEASUREMENT PROFESSIONALS/NBRC | Olathe, KS | Active 2007–2016 |
| APPLIED RESEARCH ASSOCIATES, INC. | Alexandria, VA | Active 2020–2026 |
| APPLY GOVERNMENT SOLUTIONS (FORMERLY KNOWN AS MONSTER WORLDWIDE) | Washington, DC | Active 2007–2026 |
| APPO-G, LLC | Franklin, TN | Active 2007–2021 |
| APPRAISAL INSTITUTE | Washington, IL | Active 2007–2026 |
| APPTRONIK INC. | Austin, TX | Active 2026 |
| APRIA HEALTHCARE LLC | Indianapolis, IN | Active 2008–2022 |
| APSE: THE NETWORK ON EMPLOYMENT | Rockville, MD | Active 2008–2015 |
| APTIM CORP. | Washington, DC | Active 2017–2018 |
| APTIV, PLC | Boston, MA | Active 2007–2026 |
| APTS ACTION, INC. | Arlington, VA | Active 2007–2026 |
| AQUALAW PLC | RICHMOND, VA | Active 2007 |
| AQUATECH INTERNATIONAL, LLC | Canonsburg, PA | Active 2026 |
| AQUIA GROUP, LLC | McLean, VA | Active 2018–2026 |
| AQUILA DORADO CONSULTING, LLC | PUEBLO, CO | Active 2026 |
| ARAMARK | Philiadelphia, PA | Active 2007–2008 |
| ARBITRON INC. | Columbia, MD | Active 2009–2011 |
| ARCADIAN NETWORKS, INC. | Valhalla, NY | Active 2008–2011 |
| ARCADIAN PARTNERS | Fairfax, VA | Active 2011–2012 |
| ARCADIS U.S., INC. (ARCADIS) | Highlands Ranch, CO | Active 2008–2012 |
| ARCELORMITTAL NORTH AMERICA HOLDINGS LLC AND ITS US SUBSIDIARIES | Washington, DC | Active 2007–2026 |
| ARCH RESOURCES, INC. (FORMERLY ARCH COAL, INC.) | WASHINGTON, DC | Active 2007–2025 |
| ARCH STREET | Alexandria, VA | Active 2023–2025 |
| ARCHER DANIELS MIDLAND COMPANY | Washington, DC | Active 2007–2026 |
| ARCHER PUBLIC AFFAIRS | YACOLT, WA | Active 2024–2025 |
| ARCONIC CORPORATION | Pittsburgh, PA | Active 2020–2026 |
| ARCTIC GEOPOLITICAL CONSULTING | Nome, AK | Active 2017–2020 |
| ARCTIC SLOPE REGIONAL CORP | Anchorage, AK | Active 2007 |
| ARCURI WARD LLC | New Hartford, NY | Active 2022–2024 |
| ARDEIDAE GROUP LLC | Washington, DC | Active 2019–2026 |
| ARDELYX, INC. | Freemont, CA | Active 2020–2026 |
| ARDENT STRATEGIES | Arlington, VA | Active 2017–2026 |
| ARENA OFFSHORE, LP | THE WOODLANDS, TX | Active 2021–2026 |
| ARENA STRATEGIES, LLC | Harrisburg, PA | Active 2015–2023 |
| ARENTFOX SCHIFF LLP | Washington, DC | Active 2007–2026 |
| ARETE PUBLIC AFFAIRS | Austin, TX | Active 2025–2026 |
| ARGENTUM | Washington, DC | Active 2007–2026 |
| ARGO AI | Pittsburgh, PA | Active 2019–2022 |
| ARGON ST | Fairfax, VA | Active 2008–2009 |
| ARGUS MEDIA, INC. | Houston, TX | Active 2009–2026 |
Names and addresses as the register lists them. Years active spans the first and latest year of any filing by the registrant, including registrations and amendments.