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 |
|---|---|---|
| SONOSITE, INC. | BOTHELL, WA | Active 2007–2010 |
| SONOSKY, CHAMBERS, SACHSE, ENDRESON & PERRY, LLP | Washington, D.C., DC | Active 2007–2026 |
| SONOVA USA INC. | Aurora, IL | Active 2021–2026 |
| SONY ELECTRONICS INC. | WASHINGTON, DC | Active 2007–2013 |
| SONY INTERACTIVE ENTERTAINMENT LLC | Washington, DC | Active 2024–2026 |
| SONY MUSIC ENTERTAINMENT (FORMERLY KNOWN AS SONY BMG MUSIC ENTERTAINMENT) | NEW YORK, NY | Active 2007–2026 |
| SONY PICTURES ENTERTAINMENT INC. | Culver City, CA | Active 2019–2026 |
| SOO LINE RAILROAD COMPANY | Washington, DC | Active 2018–2026 |
| SORINI STRATEGIC ADVISORS | Washington, DC | Active 2007–2026 |
| SOUND PHYSICIANS | Nashville, TN | Active 2026 |
| SOUNDEXCHANGE, INC. | Washington, DC | Active 2007–2026 |
| SOUNDING PARTNERS, LLC | Alexandria, VA | Active 2018–2019 |
| SOURCEAMERICA | VIENNA, VA | Active 2007–2026 |
| SOUTH BOW CANADA SERVICES LTD. | Calgary, AB, Canada | Active 2025–2026 |
| SOUTH BOW USA SERVICES, INC. | Houston, TX | Active 2024–2025 |
| SOUTH CAROLINA FARM BUREAU FEDERATION | Columbia, SC | Active 2008–2026 |
| SOUTH CAROLINA PUBLIC SERVICE AUTHORITY | Moncks Corner, SC | Active 2008–2019 |
| SOUTH DAKOTA CORN GROWERS ASSOCIATION | Sioux Falls, SD | Active 2022–2026 |
| SOUTH RIVER ADVOCACY | Edgewater, MD | Active 2019–2021 |
| SOUTHEAST MILK INC. | Belleview, FL | Active 2009–2015 |
| SOUTHEAST MISSOURI STATE UNIVERSITY | Cape Girardeau, MO | Active 2015–2026 |
| SOUTHEAST QSR, LLC | Martinez, GA | Active 2011–2017 |
| SOUTHEAST STRATEGIES, INC | RALEIGH, NC | Active 2007–2009 |
| SOUTHEASTERN LUMBER MANUFACTURERS ASSOCIATION | Tyrone, GA | Active 2009–2026 |
| SOUTHERN CALIFORNIA PUBLIC RADIO | Pasadena, CA | Active 2024–2026 |
| SOUTHERN CALIFORNIA TRANSPORTATION SOLUTIONS | SAN DIEGO, CA | Active 2007 |
| SOUTHERN COMPANY | Washington, DC | Active 2007–2026 |
| SOUTHERN COTTON GROWERS, INC. | Dawsonville, GA | Active 2008–2015 |
| SOUTHERN ENVIRONMENTAL LAW CENTER | VA, VA | Active 2007–2026 |
| SOUTHERN ILLINOIS UNIVERSITY | SPRINGFIELD, IL | Active 2007–2026 |
| SOUTHERN INSTITUTE OF POLICY RESEARCH | Birmingham, AL | Active 2023–2026 |
| SOUTHERN MILLS, INC. D/B/A TENCATE PROTECTIVE FABRICS (FKA TENCATE) | Union City, GA | Active 2011–2026 |
| SOUTHERN MINNESOTA BEET SUGAR COOP | Renville, MN | Active 2021–2026 |
| SOUTHERN POVERTY LAW CENTER, INC. | Montgomery, AL | Active 2025–2026 |
| SOUTHERN STATES POLICE BENEVOLENT ASSOCIATION, INC. | MCDONOUGH, GA | Active 2007–2024 |
| SOUTHERN STRATEGIES LLC | Alexandria, VA | Active 2021 |
| SOUTHERN STRATEGY GROUP | Orlando, FL | Active 2007 |
| SOUTHERN STRATEGY GROUP OF GEORGIA, LLC | Atlanta, GA | Active 2018 |
| SOUTHERN STRATEGY GROUP, INC | TALLAHASSEE, FL | Active 2017–2019 |
| SOUTHERN UTAH WILDERNESS ALLIANCE | WASHINGTON, DC | Active 2007–2018 |
| SOUTHFIVE STRATEGIES | Washington, DC | Active 2012–2013 |
| SOUTHPAW STRATEGIES | Washington, DC | Active 2007 |
| SOUTHWEST AIRLINES | DALLAS, TX | Active 2007–2026 |
| SOUTHWEST AIRLINES PILOTS' ASSOCIATION | IRVING, TX | Active 2007–2026 |
| SOUTHWEST RESEARCH INSTITUTE | San Antonio, TX | Active 2011–2012 |
| SOVEREIGN GLOBAL SOLUTIONS, LLC | Haymarket, VA | Active 2023–2026 |
| SOVEREIGN SYSTEMS, LLC | ALBUQUERQUE, NM | Active 2008–2010 |
| SPACE EXPLORATION TECHNOLOGIES | Washington, DC | Active 2007–2026 |
| SPACE GOVERNANCE INSTITUTE, INC. | Bedford, NH | Active 2025–2026 |
| SPANGLER STRATEGIES LLC | Washington, DC | Active 2017–2026 |
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.