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 |
|---|---|---|
| DENNIS M. HERTEL & ASSOCIATES | GREAT FALLS, VA | Active 2007–2026 |
| DENNO STRATEGIES LLC | Arlington, VA | Active 2007–2008 |
| DENNY MILLER ASSOCIATES | Washington, DC | Active 2007–2013 |
| DENSO INTERNATIONAL AMERICA INC | Southfield, MI | Active 2018–2026 |
| DENT STRATEGIES | Fairfax Station, VA | Active 2020–2022 |
| DENTONS US LLP | Washington, DC | Active 2007–2026 |
| DENTSPLY SIRONA INC. | Charlotte, NC | Active 2025 |
| DEPARTMENT FOR PROFESSIONAL EMPLOYEES, AFL-CIO | WASHINGTON, DC | Active 2007–2026 |
| DERMATOLOGY ASSOCIATION OF RADIATION THERAPY (DART) | Westchester, IL | Active 2025–2026 |
| DERRICK BEETSO | Gilbert, AZ | Active 2021 |
| DERRICK WHITE | Arlington, VA | Active 2009–2011 |
| DERYL SCHUSTER | Viola, KS | Active 2009 |
| DESALES MEDIA GROUP, INC. | Brooklyn, NY | Active 2013–2026 |
| DESIGN-BUILD INSTITUTE OF AMERICA | Washington, DC | Active 2007–2026 |
| DESIMONE CONSULTING, LLC | Puyallup, WA | Active 2012–2026 |
| DESMOND CONSULTING SERVICES | Arlington, VA | Active 2025–2026 |
| DETERMINANT LLC | Washington, DC | Active 2026 |
| DETROIT & CANADA TUNNEL CORPORATION | DETROIT, MI | Active 2007 |
| DETROIT MEDICAL CENTER | LANSING, MI | Active 2007 |
| DEUTSCH INITIATIVES GROUP | Cheverly, MD | Active 2017 |
| DEUTSCHE BANK SECURITIES INC. | WASHINGTON, DC | Active 2007–2012 |
| DEUTSCHE ORGANIZATION INCORPORATED | Charlotte, NC | Active 2015–2023 |
| DEVEAU BURR GROUP, LLC | Sacramento, CA | Active 2025–2026 |
| DEVON ENERGY CORP | OKLAHOMA CITY, OK | Active 2007–2008 |
| DEVON ENERGY PRODUCTION COMPANY, LP | Oklahoma City, OK | Active 2009–2020 |
| DEVRY INC | OAKBROOK TERRACE, IL | Active 2007–2009 |
| DEVRY UNIVERSITY | Naperville, IL | Active 2023–2026 |
| DEWEY & LEBOEUF LLP | Washington, DC | Active 2007–2012 |
| DEWEY BALLANTINE LLP | Washington, DC | Active 2007 |
| DEWEY SQUARE GROUP | Washington, DC | Active 2007–2018 |
| DEWITT ROSS & STEVENS S.C. | MADISON, WI | Active 2007–2012 |
| DEWITT T HARDIN III | Alexandria, VA | Active 2008–2010 |
| DEXCOM, INC. | San Diego, CA | Active 2017–2026 |
| DF KERN CONSULTING, LLC | Annandale, VA | Active 2008–2010 |
| DGA GROUP GOVERNMENT RELATIONS LLC | Washington D.C., DC | Active 2021–2026 |
| DGK CONSULTING, LLC | Washington, DC | Active 2015–2016 |
| DGSR LLC | Washington, DC | Active 2015–2026 |
| DH DIAGNOSTICS LLC | Washington, DC | Active 2024–2026 |
| DHC CONSULTING LLC | Harvey, IL | Active 2008–2009 |
| DHI CONSULTING GROUP, LLC | Houston, TX | Active 2020–2026 |
| DHILLON LAW GROUP, INC. | Alexandria, VA | Active 2025–2026 |
| DHL EXPRESS U.S.A. | Washington, DC | Active 2007–2013 |
| DIABETES PATIENT ADVOCACY COALITION | Tampa, FL | Active 2016–2019 |
| DIADEM LLC | Boise, ID | Active 2025–2026 |
| DIAGEO NORTH AMERICA | WASHINGTON, DC | Active 2007–2026 |
| DIAKON PARTNERS, INC | Hedgesville, WV | Active 2023–2026 |
| DIALYSIS PATIENT CITIZENS | Arlington, VA | Active 2009–2026 |
| DIAMOND ADVOCACY INC. | Alexandria, VA | Active 2026 |
| DIAMOND CAPITAL INTERNATIONAL LLC | GULFPORT, MS | Active 2021–2026 |
| DIAMOND FOUNDRY | South San Francisco, CA | Active 2021–2022 |
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.