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 |
|---|---|---|
| CENTER HILL SOLUTIONS | Crofton, MD | Active 2016–2026 |
| CENTER MARKET STRATEGIES, LLC | Washington, DC | Active 2026 |
| CENTER ON BUDGET AND POLICY PRIORITIES | WASHINGTON, DC | Active 2007–2026 |
| CENTER ON CONSCIENCE & WAR | WASHINGTON, DC | Active 2007–2011 |
| CENTER ROAD SOLUTIONS | Valley City, OH | Active 2018–2026 |
| CENTERLIGHT HEALTHCARE, INC. | Flushing, NY | Active 2024–2026 |
| CENTERPOINT ENERGY | Indianapolis, IN | Active 2009–2026 |
| CENTERPOINT ENERGY, INC. | Washington, DC | Active 2010–2014 |
| CENTERSTONE | Nashville, TN | Active 2021–2026 |
| CENTOCOR ORTHO BIOTECH SERVICES, LLC | Bridgewater, NJ | Active 2007–2008 |
| CENTRAL MICHIGAN UNIVERSITY | MT. PLEASANT, MI | Active 2007–2008 |
| CENTRAL WASHINGTON UNIVERSITY | Ellensburg, WA | Active 2023–2026 |
| CENTRICA US HOLDINGS, INC. | Washington, DC | Active 2010–2011 |
| CENTRUS ENERGY CORP. | BETHESDA, MD | Active 2007–2026 |
| CEPHALON, INC. | Frazer, PA | Active 2007–2011 |
| CEPHEID | Washington, DC | Active 2008–2024 |
| CEPI-U.S. | Washington, DC | Active 2017–2026 |
| CERBERUS CAPITAL MANAGEMENT | NEW YORK, NY | Active 2007–2026 |
| CERES, INC. | Boston, MA | Active 2009–2026 |
| CERIDIAN CORPORATION | Bethesda, MD | Active 2007–2013 |
| CERILLION N4 PARTNERS | Seattle, WA | Active 2015 |
| CERO STRATEGIES, LLC | WASHINGTON, DC | Active 2007–2013 |
| CERTIFIED FINANCIAL PLANNER BOARD OF STANDARDS, INC. | Washington, DC | Active 2009–2026 |
| CERTIFIED KERNEL TECH LLC | New York, NY | Active 2026 |
| CF INDUSTRIES, INC. | WASHINGTON, DC | Active 2007–2026 |
| CFA INSTITUTE | Charlottesville, VA | Active 2025–2026 |
| CFM STRATEGIC COMMUNICATIONS (CONKLING FISKUM & MCCORMICK) | WASHINGTON, DC | Active 2007–2026 |
| CG CONSULTING GROUP, INC. | Sacramento, CA | Active 2009–2015 |
| CG TECHNOLOGIES INC. | Huntsville, AL | Active 2007–2018 |
| CGA STRATEGIES LLC | Washington, DC | Active 2017–2022 |
| CGCN GROUP, LLC | Washington, DC | Active 2007–2026 |
| CGI FEDERAL | Farifax, VA | Active 2007 |
| CGM ADVISORS, LLC | Arlington, VA | Active 2018–2020 |
| CH2M HILL COMPANIES, LTD | WASHINGTON, DC | Active 2007–2017 |
| CHAD BRADLEY& ASSOCIATES, L.L.C. | ALEXANDRIA, VA | Active 2007–2013 |
| CHAD KIRKPATRICK | Phoenix, AZ | Active 2011–2012 |
| CHADBOURNE & PARKE LLP | Washington, DC | Active 2007–2018 |
| CHAIN LINK SOLUTIONS LLC | Hoover, AL | Active 2017–2026 |
| CHAITMAN LLP | New York, NY | Active 2015–2021 |
| CHAMBER HILL STRATEGIES | Arlington, VA | Active 2010–2026 |
| CHAMBER OF COMMERCE OF THE U.S.A. | WASHINGTON, DC | Active 2007–2026 |
| CHAMBER OF MARINE COMMERCE | Ottawa, ON, Canada | Active 2012–2024 |
| CHAMBER OF PROGRESS | McLean, VA | Active 2021–2026 |
| CHAMBER OF SHIPPING OF AMERICA | WASHINGTON, DC | Active 2007–2026 |
| CHAMBERS, CONLON & HARTWELL, LLC | WASHINGTON, DC | Active 2007–2021 |
| CHAMPLIN WASHINGTON STRATEGIES | Washington, DC | Active 2016–2017 |
| CHAMWORKS, LLC | Philadelphia, PA | Active 2007–2017 |
| CHANEL, INC. | NEW YORK, NY | Active 2019–2026 |
| CHANGE HEALTHCARE | Nashville, TN | Active 2015–2018 |
| CHANGENT (FKA NURSE-FAMILY PARTNERSHIP COLORADO) | Denver, CO | Active 2008–2026 |
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.