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 |
|---|---|---|
| CEDAR INNOVATION FOUNDATION, INC. | Wilmington, DE | Active 2024–2026 |
| CEDARS-SINAI MEDICAL CENTER | Los Angeles, CA | Active 2007–2024 |
| CEDIA | Fishers, IN | Active 2016–2026 |
| CEIS BAYNE EAST LLC | Seattle, WA | Active 2010–2015 |
| CELANESE CORPORATION | Irving, TX | Active 2007–2026 |
| CELGENE CORPORATION | Summit, NJ | Active 2007–2019 |
| CELLEBRITE INC. | McLean, VA | Active 2021–2026 |
| CELO FOUNDATION | San Francisco, CA | Active 2022 |
| CEMENT KILN RECYCLING COALITION | Arlington, VA | Active 2007 |
| CEMEX INC. | Houston, TX | Active 2008–2026 |
| CEMVITA | Houston, TX | Active 2023–2024 |
| CENCORA, INC. | WASHINGTON, DC | Active 2007–2026 |
| CENGAGE LEARNING, INC. | BOSTON, MA | Active 2014–2026 |
| CENOVUS US CORPORATION (FKA CENOVUS ENERGY) | Dublin, OH | Active 2023–2026 |
| CENTECH GROUP, INC. | Arlington, VA | Active 2007–2009 |
| CENTENE CORPORATION | WASHINGTON, DC | Active 2007–2026 |
| CENTER FOR AFRICAN PROGRESS, INC | Washington, DC | Active 2015–2026 |
| CENTER FOR AI POLICY, INC. | Washington, DC | Active 2023–2025 |
| CENTER FOR AI SAFETY ACTION FUND, INC. | San Francisco, CA | Active 2023–2026 |
| CENTER FOR AMERICAN MEDICINE RESILIENCY | Great Falls, VA | Active 2024–2026 |
| CENTER FOR AMERICAN PROGRESS | Washington, DC | Active 2007 |
| CENTER FOR AMERICAN PROGRESS ACTION FUND | WASHINGTON, DC | Active 2007–2026 |
| CENTER FOR ARMS CONTROL & NON-PROLIFERATION | Washington, DC | Active 2007–2026 |
| CENTER FOR BIOLOGICAL DIVERSITY | Tucson, AZ | Active 2017–2026 |
| CENTER FOR CHILDREN'S LAW AND POLICY | WASHINGTON, DC | Active 2007–2012 |
| CENTER FOR CLEAN AIR POLICY | Washington, DC | Active 2009–2010 |
| CENTER FOR CLIMATE AND ENERGY SOLUTIONS | Arlington, VA | Active 2007–2026 |
| CENTER FOR COMMUNITY CHANGE | WASHINGTON, DC | Active 2007–2009 |
| CENTER FOR COMMUNITY CHANGE ACTION | Washington, DC | Active 2009–2026 |
| CENTER FOR COMPETITIVE POLITICS | Alexandria, VA | Active 2009–2018 |
| CENTER FOR COUNTERING DIGITAL HARM, INC. | Washington, DC, DC | Active 2026 |
| CENTER FOR EMPLOYMENT OPPORTUNITIES, INC. | New York, NY | Active 2021–2026 |
| CENTER FOR FOOD SAFETY | Washington, DC | Active 2013–2016 |
| CENTER FOR FREEDOM AND PROSPERITY | FAIRFAX, VA | Active 2007–2026 |
| CENTER FOR INDIVIDUAL FREEDOM | Fairfax, VA | Active 2007–2026 |
| CENTER FOR INQUIRY, INC. OFFICE OF PUBLIC POLICY | Amherst, NY | Active 2007–2026 |
| CENTER FOR JUDICIAL EXCELLENCE | San Rafael, CA | Active 2018–2025 |
| CENTER FOR LAW AND SOCIAL POLICY (CLASP) | Washington, DC | Active 2017–2026 |
| CENTER FOR LOBBYING IN THE PUBLIC INTEREST | WASHINGTON, DC | Active 2007–2008 |
| CENTER FOR LYME ACTION | WASHINGTON, DC | Active 2024–2026 |
| CENTER FOR NATL SECURITY RESEARCH & EDUCATION | — | Active 2007 |
| CENTER FOR POPULAR DEMOCRACY | Brooklyn, NY | Active 2021–2022 |
| CENTER FOR POPULAR DEMOCRACY ACTION | Brooklyn, NY | Active 2021–2022 |
| CENTER FOR PRISON REFORM | Washington, DC | Active 2014–2018 |
| CENTER FOR PROCUREMENT ADVOCACY | Washington, DC | Active 2020–2026 |
| CENTER FOR REPRODUCTIVE RIGHTS | NEW YORK, NY | Active 2007–2026 |
| CENTER FOR RESPONSIBLE LENDING, A SUPPORTING CORP OF CTR FOR COMMUNITY SELF-HELP | WASHINGTON, DC | Active 2007–2026 |
| CENTER FOR SCIENCE IN THE PUBLIC INTEREST | Washington, DC | Active 2007–2026 |
| CENTER FOR SPORTFISHING POLICY | Baton Rouge, LA | Active 2008–2026 |
| CENTER HILL GROUP, INC. | Washington, DC | Active 2008 |
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.