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 |
|---|---|---|
| ROCHE DIAGNOSTICS CORPORATION | Indianapolis, IN | Active 2008 |
| ROCHESTER INSTITUTE OF TECHNOLOGY | Rochester, NY | Active 2024–2026 |
| ROCHESTER REGIONAL HEALTH | Rochester, NY | Active 2021–2026 |
| ROCK & ASSOCIATES | Washington, DC | Active 2013–2024 |
| ROCK CENTRAL | Detroit, MI | Active 2020–2024 |
| ROCK CREEK COUNSEL | McLean, VA | Active 2015–2026 |
| ROCK CREEK TRADE LLP | Washington, DC | Active 2026 |
| ROCK SPRING PUBLIC POLICY | Arlington, VA | Active 2021–2023 |
| ROCK TRADE LAW LLC | Chicago, IL | Active 2025–2026 |
| ROCK WEST CAPITAL | Arlington, VA | Active 2010 |
| ROCKEFELLER GROUP DEVELOPMENT CORPORATION | Annapolis, MD | Active 2007–2011 |
| ROCKET LAB USA, INC. | Long Beach, CA | Active 2021–2026 |
| ROCKET LP FKA RKT HOLDINGS | Detroit, MI | Active 2024–2026 |
| ROCKIES ARIA LLC | Steamboat Springs, CO | Active 2022–2026 |
| ROCKWELL AUTOMATION | Bethesda, MD | Active 2010–2026 |
| ROCKWELL COLLINS, INC | CEDAR RAPIDS, IA | Active 2007–2018 |
| ROCKY MOUNTAIN CAPITOL CONSULTING | ARLINGTON, VA | Active 2007–2015 |
| ROCKY MOUNTAIN INSTITUTE | Boulder, CO | Active 2024–2026 |
| RODERICK HSIAO | Foster City, CA | Active 2007–2008 |
| RODRIGUEZ PINA & ASSOCIATES | Coral Gables, FL | Active 2008–2009 |
| ROESLEIN & ASSOCIATES | St. Louis, MO | Active 2026 |
| ROETZEL & ANDRESS, LPA | Cleveland, OH | Active 2007–2026 |
| ROGER BLACKLOW | Silver Spring, MD | Active 2010–2012 |
| ROGER C. FAIRCHILD | PURCELLVILLE, VA | Active 2007–2010 |
| ROGER STONE | Hallandale Beach, FL | Active 2017 |
| ROGER WOLFSON | Los Angeles, CA | Active 2022–2023 |
| ROGUE SPACE SYSTEMS CORPORATION | Laconia, NH | Active 2024–2026 |
| ROHM AND HAAS COMPANY | ARLINGTON, VA | Active 2007–2009 |
| ROJAS PUBLIC AFFAIRS | Rancho Cucamonga, CA | Active 2024–2026 |
| ROKALA PUBLIC AFFAIRS | washington, DC | Active 2015–2026 |
| ROKU, INC. | San Jose, CA | Active 2022–2026 |
| ROLKA LOUBE SALTZER LLC, DBA ROLKA LOUBE | Harrisburg, PA | Active 2022 |
| ROLLS-ROYCE NORTH AMERICA AND ITS AFFILIATES | Reston, VA | Active 2007–2026 |
| ROMAN BUHLER AND ASSOCIATES | McLean, VA | Active 2007–2011 |
| ROMAN HEALTH VENTURES INC. | New York, NY | Active 2026 |
| ROMANO & ASSOCIATES, LLC | WASHINGTON, DC | Active 2007–2011 |
| ROMO STRATEGIES | Reidsville, NC | Active 2018–2022 |
| RON CAMPBELL / SPS CONSULTANTS | FALLSTON, MD | Active 2007–2026 |
| RON KENDALL & ASSOCIATES | Silver Spring, MD | Active 2012–2014 |
| RON KLINK AND ASSOCIATES | WASHINGTON, DC | Active 2007–2009 |
| RON REEVES & ASSOCIATES | ALEXANDRIA, VA | Active 2007–2008 |
| RON SILVER AND ASSOCIATES, INC. | North Miami Beach, FL | Active 2009 |
| RONALD COOPER | Bozeman, MT | Active 2010 |
| RONALD L. BOOK, P.A. | Hollywood, FL | Active 2023–2024 |
| RONALD MARKS | MCLEAN, VA | Active 2008–2010 |
| RONALD SYKES | GAINESVILLE, VA | Active 2007–2009 |
| RONALD V. DELLUMS | Washington, DC | Active 2016 |
| ROOSTER LLC | San Francisco, CA | Active 2018–2024 |
| ROOTED STRATEGY & POLICY | Baltimore, MD | Active 2025 |
| ROOTS & ASSOCIATES | Great Falls, VA | Active 2011 |
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.