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 |
|---|---|---|
| CAMBIA HEALTH SOLUTIONS | Washington, DC | Active 2019–2026 |
| CAMBRIDGE STRATEGIC PARTNERS | Washington, DC | Active 2007–2011 |
| CAMECO CORPORATION | SASKATOON, SK, Canada | Active 2007–2026 |
| CAMERON COMPANIES | Harrisburg, PA | Active 2013–2022 |
| CAMERON KRIER MASSEY, INC. DBA SCOUT GR | Austin, TX | Active 2017–2026 |
| CAMERON RING | Radford, VA | Active 2025–2026 |
| CAMGIAN CORPORATION | Starkville, MS | Active 2024–2026 |
| CAMILLIERE, CLOUD AND KENNEDY | West Hartford, CT | Active 2010–2011 |
| CAMNER LIPSITZ, P.A. | CORAL GABLES, FL | Active 2007–2009 |
| CAMP FIRE USA | WASHINGTON, DC | Active 2007 |
| CAMPAIGN FOR AMERICA'S WILDERNESS | DURANGO, CO | Active 2007–2010 |
| CAMPAIGN FOR PUBLIC HEALTH | Washington, DC | Active 2008–2011 |
| CAMPAIGN FOR THE FAIR SENTENCING OF YOUTH | Washington, DC | Active 2015–2018 |
| CAMPAIGN FOR TOBACCO-FREE KIDS | WASHINGTON, DC | Active 2007–2026 |
| CAMPAIGN FOR YOUTH JUSTICE | Washington, DC | Active 2007–2020 |
| CAMPAIGN LEGAL CENTER, INC. | Washington, DC | Active 2007–2026 |
| CAMPBELL FLANNERY, P.C. | Leesburg, VA | Active 2010–2014 |
| CAMPBELL SOUP COMPANY | CAMDEN, NJ | Active 2007–2018 |
| CAMPBELL, PHILLIP | BRADENTON, FL | Active 2007 |
| CAMPCO RESEARCH LTD. | Tel Aviv, Israel | Active 2024–2026 |
| CAMPION ADVOCACY FUND | Seattle, WA | Active 2021–2026 |
| CAN MANUFACTURERS INSTITUTE | WASHINGTON, DC | Active 2007–2026 |
| CANADIAN ASSOCIATION OF PETROLEUM PRODUCERS | Calgary, AB, Canada | Active 2025–2026 |
| CANADIAN AUTOMOBILE DEALERS ASSOCIATION | Ottawa, ON, Canada | Active 2025–2026 |
| CANADIAN NATIONAL RAILWAY COMPANY | WASHINGTON, DC | Active 2007–2026 |
| CANADIAN SNOWBIRD ASSOCIATION | Toronto, ON, Canada | Active 2011–2026 |
| CANADIAN SOLAR INC. | Kitchener, ON, Canada | Active 2025–2026 |
| CANAMCO | WASHINGTON, DC | Active 2007–2016 |
| CANDACE BARTLETT | ARLINGTON, TN | Active 2007–2010 |
| CANFIELD & ASSOCIATES, INC. | Alexandria, VA | Active 2007–2017 |
| CANFIELD CONSULTING, LLC | Prairie Village, KS | Active 2025–2026 |
| CANFIELD SMITH & MARTIN | WASHINGTON, DC | Active 2007 |
| CANGENE CORPORATION | WINNIPEG, MB, Canada | Active 2007–2010 |
| CANNABIS TRADE FEDERATION ACTION | Washington, DC | Active 2019–2020 |
| CANNAE POLICY GROUP LLC | Greenville, FL | Active 2014–2022 |
| CANNON CONSULTANTS, INC. | mclean, VA | Active 2008 |
| CANNON|PEARCE FKA MR. MATT PEARCE | Washington, DC | Active 2024–2026 |
| CANOPY GROWTH USA LLC | Denver, CO | Active 2021–2023 |
| CANPACK GROUP, INC. AND VARIOUS AFFILIATES | Wayne, PA | Active 2026 |
| CANSLER CONSULTING, LLC | Gaithersburg, MD | Active 2008–2026 |
| CANSLER VENOSDEL & ASSOC | WASHINGTON, DC | Active 2007 |
| CANYON RESOURCES CORPORATION | GOLDEN, CO | Active 2007–2013 |
| CANYON SNOW CONSULTING, LLC | Los Gatos, CA | Active 2009–2024 |
| CAPACITY-360 | Madison, WI | Active 2008–2010 |
| CAPCITY ADVOCATES, LLC | Washington, DC | Active 2007–2026 |
| CAPCVENTURES LLC | Washington, DC | Active 2023–2026 |
| CAPEDC ADVISORS, LLC | Naples, FL | Active 2008–2026 |
| CAPEHILL LLC | Ocala, FL | Active 2026 |
| CAPELLA SPACE CORP. (FORMERLY KNOWN AS CAPELLA SPACE CORP. AND SUBSIDIARIES) | Louisville, CO | Active 2023–2026 |
| CAPELLA UNIVERSITY | Minneapolis, MN | Active 2012–2016 |
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.