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 |
|---|---|---|
| HITTLE STRATEGIES, LLC | Alexandria, VA | Active 2026 |
| HIV AND HEPATITIS POLICY INSTITUTE | Washington, DC | Active 2025–2026 |
| HJ TOBIN POLICY CONSULTING | Watertown, MA | Active 2021–2026 |
| HMONG ADVANCE, INC. | Washington, DC | Active 2009 |
| HMONG ADVANCEMENT, INC. | Washington, DC | Active 2009 |
| HMONG NATIONAL DEVELOPMENT, INC. | Washington, DC, DC | Active 2008 |
| HMU CONSULTING LLC | West Chester, PA | Active 2021–2024 |
| HNI CORPORATION | Muscatine, IA | Active 2023–2026 |
| HNTB CORPORATION | Sausalito, CA | Active 2023–2026 |
| HOBBS, STRAUS, DEAN & WALKER, LLP | WASHINGTON, DC | Active 2007–2026 |
| HOBOKEN STRATEGY GROUP | Avon by the Sea, NJ | Active 2007–2026 |
| HODGES CONSULTING GROUP | Columbia, SC | Active 2007–2008 |
| HODGKINS AND ASSOCIATES | Bradenton, FL | Active 2018–2022 |
| HODGKINS CONSULTING, LLC | Alexandria, VA | Active 2019–2026 |
| HOECKER ENERGY LAW & POLICY PLLC | Middleburg, VA | Active 2008–2026 |
| HOEKSTRA GLOBAL STRATEGIES | Holland, MI | Active 2015–2017 |
| HOGAN LOVELLS CADWALADER US LLP (FKA HOGAN LOVELLS US LLP) | WASHINGTON, DC | Active 2007–2026 |
| HOGAN MARREN BABBO & ROSE, LTD. | Chicago, IL | Active 2026 |
| HOGAN POLICY ADVISORS | Arlington, VA | Active 2024–2026 |
| HOLCH & ERICKSON, LLP | Washington, DC | Active 2007–2022 |
| HOLCIM (US) INC. | Bedford, MA | Active 2007–2015 |
| HOLLAND & HART LLP | Washington, DC | Active 2007–2026 |
| HOLLAND & KNIGHT LLP | Washington, DC | Active 2007–2026 |
| HOLLAND PARTNER GROUP | Vancouver, WA | Active 2017–2018 |
| HOLLIDAY COLLABORATIVE AGENCY LLC | Indianapolis, IN | Active 2026 |
| HOLLIDAY STRATEGIC | Arlington, VA | Active 2012–2017 |
| HOLLIER & ASSOCIATES | Washington, DC | Active 2007–2026 |
| HOLLINGER GROUP CONSULTING | fort belvoir, VA | Active 2025–2026 |
| HOLLIS PUBLIC AFFAIRS | New York City, NY | Active 2021–2026 |
| HOLLRAH LLC | Washington, DC | Active 2007–2026 |
| HOLLY EVANS | Alexandria, VA | Active 2008–2012 |
| HOLLY STEVENS | GEORGETOWN, TX | Active 2007–2026 |
| HOLLY STRATEGIES INCORPORATED | Arlington, VA | Active 2018–2026 |
| HOLMAN STRATEGIES LLC | Middleburg, VA | Active 2025 |
| HOLME ROBERTS AND OWEN LLP | Denver, CO | Active 2007–2008 |
| HOLMES WEDDLE & BARCOTT | ANCHORAGE, AK | Active 2007–2008 |
| HOLOGIC, INC. | Marlborough, MA | Active 2022–2026 |
| HOLT, TERRY | ALEXANDRIA, VA | Active 2007 |
| HOLTEC INTERNATIONAL | Camden, NJ | Active 2021–2026 |
| HOLZWORTH & KATO, PC | Washington, DC | Active 2011–2014 |
| HOMARUS STRATEGIES | Brunswick, ME | Active 2023–2026 |
| HOME INSTEAD, INC. | Omaha, NE | Active 2009–2023 |
| HOME SAFETY COUNCIL | Washington, DC | Active 2008–2011 |
| HOME SCHOOL LEGAL DEFENSE ASSN | PURCELLVILLE, VA | Active 2007–2017 |
| HOMELAND SECURITY & DEFENSE BUSINESS COUNCIL | Washington, DC | Active 2008–2010 |
| HOMER LAW | Washington, DC | Active 2007–2014 |
| HOMER, PETE | WASHINGTON, DC | Active 2007 |
| HOMESAFE ALLIANCE | Houston, TX | Active 2024–2025 |
| HOMESERVE USA CORP | Norwalk, CT | Active 2021–2024 |
| HONEYWELL AEROSPACE US LLC | Phoenix, AZ | Active 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.