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 |
|---|---|---|
| ANDURIL INDUSTRIES, INC. | Costa Mesa, CA | Active 2020–2026 |
| ANEMOI GROUP LLC | Alexandria, VA | Active 2020–2021 |
| ANGELA CANTERBURY | Kensington, MD | Active 2019 |
| ANGELA EURTON | Georgetown, IN | Active 2009 |
| ANGELA STEWART | Washington, DC | Active 2015 |
| ANGLO AMERICAN | London, United Kingdom | Active 2022–2025 |
| ANHEUSER-BUSCH COMPANIES | WASHINGTON, DC | Active 2007–2026 |
| ANIBLE & EDWARDS | Little Rock, AR | Active 2007–2010 |
| ANIMAL DEFENDERS INTERNATIONAL US INC. | Los Angeles, CA | Active 2014–2022 |
| ANIMAL HEALTH INSTITUTE | WASHINGTON, DC | Active 2007–2026 |
| ANIMAL LEGAL DEFENSE FUND | Sacramento, CA | Active 2023–2026 |
| ANIMAL LEGAL DEFENSE LEGISLATIVE FUND | Sacramento, CA | Active 2024–2026 |
| ANIMAL POLICY GROUP, LLC | Nashville, TN | Active 2017–2020 |
| ANIMAL WELFARE INSTITUTE FKA SOCIETY FOR ANIMAL PROTECTIVE LEGISLATION | Washington, DC | Active 2007–2026 |
| ANIMAL WELLNESS ACTION | Washington, DC | Active 2018–2026 |
| ANITA GALLAGHER | Tacoma, WA | Active 2022–2023 |
| ANKURA ADVOCACY LLC | Washington, DC | Active 2025–2026 |
| ANN & ROBERT H. LURIE CHILDREN'S HOSPITAL OF CHICAGO | Chicago, IL | Active 2026 |
| ANN AQUILLO CONSULTING LLC | Powell, OH | Active 2023–2025 |
| ANN WARNER LLC | Fredericksburg, VA | Active 2014–2026 |
| ANNA PAVLOVA | Washington, DC | Active 2008–2009 |
| ANNDYL POLICY GROUP, LLC | Takoma Park, MD | Active 2010–2026 |
| ANNE MERVENNE | Lansing, MI | Active 2009–2022 |
| ANSLEY & ASSOC LLC | ALEXANDRIA, VA | Active 2007 |
| ANSON MORAN | SAN FRANCISCO, CA | Active 2007 |
| ANSYS, INC. | Canonsburg, PA | Active 2020–2025 |
| ANT GROUP CO., LTD. | Hangzhou, Zhejiang, China | Active 2021–2026 |
| ANTHONY & MIDDLEBROOK, P.C. | Grapevine, TX | Active 2008–2011 |
| ANTHONY GARRETT & ASSOCIATES | Washington, DC | Active 2008–2024 |
| ANTHONY W. ROBINSON | Bladensburg, MD | Active 2011–2013 |
| ANTHROPIC | San Francisco, CA | Active 2024–2026 |
| ANTI-DEFAMATION LEAGUE | WASHINGTON, DC | Active 2007–2026 |
| ANWAY LONG GROUP | Tallahassee, FL | Active 2018–2021 |
| ANYWHERE REAL ESTATE INC. | Madison, NJ | Active 2024–2025 |
| ANZU STRATEGIES | Mount Vernon, ME | Active 2022–2026 |
| AO DEVELOPMENT COMPANY LLC | Oakton, VA | Active 2023–2024 |
| AOL INC. | Washington, DC | Active 2010–2012 |
| AON CONSULTING, INC. | WASHINGTON, DC | Active 2007–2009 |
| AON CORPORATION | CHICAGO, IL | Active 2007–2026 |
| APACHE CORPORATION | HOUSTON, TX | Active 2007–2015 |
| APARTMENT & OFFICE BUILDING ASSOCIATION OF METROPOLITAN WASHINGTON | Washington, DC | Active 2007–2008 |
| APCO WORLDWIDE LLC | Washington, DC | Active 2007–2026 |
| APEX CLEAN ENERGY, INC | Charlottesville, VA | Active 2017–2026 |
| APL LIMITED | WASHINGTON, DC | Active 2007–2016 |
| APOLLO GOVERNMENT RELATIONS (D/B/A APOLLO COUNSEL) | Oakland, MD | Active 2024–2026 |
| APOLLO RESEARCH PBC | Wilmington, DE | Active 2025 |
| APONTE PUBLIC AFFAIRS, INC. | Denver, CO | Active 2009–2010 |
| APOTEX CORP. | WESTON, FL | Active 2007–2026 |
| APPALACHIAN CITIZENS LAW CENTER INC. | Whitesburg, TN | Active 2017–2026 |
| APPALACHIAN TRAIL CONSERVANCY | Harper's Ferry, WV | Active 2019–2025 |
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.