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 |
|---|---|---|
| HAHN LOBBYING AND CONSULTING, LLC | Meridian, ID | Active 2025–2026 |
| HAHN LOESER & PARKS LLP | Cleveland, OH | Active 2016–2026 |
| HAIER US APPLIANCE SOLUTION, INC. DBA GE APPLIANCES | Louisville, KY | Active 2016–2026 |
| HAIR OF THE DOG OUTFITTERS, LLC | WASHINGTON, DC | Active 2021–2026 |
| HAITELMEX FOUNDATION, INC | Tijuana, Mexico | Active 2026 |
| HAKA | Alexandria, VA | Active 2017–2018 |
| HALCYON STRATEGY LLC | Kennebunkport, ME | Active 2021–2026 |
| HALEON US HOLDINGS LLC | Warren, NJ | Active 2022–2026 |
| HALEY & ASSOCIATES | Royal Oak, MD | Active 2007–2026 |
| HALL & ASSOCIATES, LLC | Washington, DC | Active 2007–2013 |
| HALL BOOTH SMITH P.C. | Atlanta, GA | Active 2025–2026 |
| HALL ESTILL HARDWICK GABLE GOLDEN & NELSON | Cooperstown, NY | Active 2007–2026 |
| HALL GOVERNMENT RELATIONS | Reston, VA | Active 2007–2014 |
| HALL, RENDER, KILLIAN, HEATH & LYMAN, P.C. | Indianapolis, IN | Active 2007–2026 |
| HALLIBURTON COMPANY | Houston, TX | Active 2007–2026 |
| HALLMARK CARDS, INC | Kansas City, MO | Active 2013–2022 |
| HALLOWELL CONSULTING, LLC | Indianapolis, IN | Active 2025 |
| HALOMD | Dallas, TX | Active 2025–2026 |
| HALSEY RAINS & ASSOCIATES, LLC | ARLINGTON, VA | Active 2007–2009 |
| HAMILTON ADVISORS INC. | Great Falls, VA | Active 2008–2019 |
| HAMILTON AMERICAN LLC | Potomac, MD | Active 2023 |
| HAMILTON CONSULTING | Phoenix, AZ | Active 2007–2019 |
| HAMILTON GOODMAN PARTNERS LLC | Wilmington, DE | Active 2021 |
| HAMILTON PLACE STRATEGIES | Washington, DC | Active 2010 |
| HAMILTON RABINOVITZ & ALSCHULER | CARMEL, CA | Active 2007 |
| HAMILTON STATION CONSULTING | Hamilton, VA | Active 2015–2017 |
| HAMMER ASSOCIATES, LLC | WASHINGTON, DC | Active 2007–2026 |
| HAMPTON CREEK, INC. | San Francisco, CA | Active 2016 |
| HANBURY STRATEGY | Washington, DC | Active 2026 |
| HANCE SCARBOROUGH | Washington, DC | Active 2007–2026 |
| HANCOCK WHITNEY BANK | Gulfport, MS | Active 2026 |
| HANDPRINT GOVERNMENT AFFAIRS LLC | Atlanta, GA | Active 2008–2017 |
| HANDSHAKE LLC | Brooklyn, NY | Active 2025–2026 |
| HANESBRANDS, INC. | WINSTON-SALEM, NC | Active 2007–2024 |
| HANK MONSEES | PRAIRIE VILLAGE, KS | Active 2007–2010 |
| HANKA ADVISOR LLC | Upper Marlboro, MD | Active 2014–2026 |
| HANSEN GOVERNMENT RELATIONS, LLC | WASHINGTON, DC | Active 2007–2017 |
| HANSON BRIDGETT LLP | San Francisco, CA | Active 2007–2013 |
| HANWHA AEROSPACE CO., LTD. | Arlington, VA | Active 2025–2026 |
| HANWHA ENERGY USA HOLDINGS CORPORATION | Houston, TX | Active 2026 |
| HANWHA Q CELLS AMERICA INC. | Washington, DC | Active 2023–2026 |
| HARBINGER STRATEGIES, LLC | Washington, DC | Active 2015–2026 |
| HARBOR POLICY, LLC | Washington, DC | Active 2023–2026 |
| HARBORPOINT STRATEGIES LLC | Alexandria, VA | Active 2025–2026 |
| HARDIMAN CONSULTING | WASHINGTON, DC | Active 2007 |
| HARDWOOD FEDERATION | WASHINGTON, DC | Active 2007–2026 |
| HARDY, JOHN D. | WASHINGTON, DC | Active 2007 |
| HARENCAK CONSULTING | New York, NY | Active 2026 |
| HARGAN STRATEGIES, FORMERLY REPORTED AS HARGAN AND ASSOCIATES | Longboat Key, FL | Active 2020–2026 |
| HARGETT CONSULTING | RESTON, VA | Active 2007–2014 |
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.