• Royce White for Senate (principal campaign committee)
• RPM International
• Rslc PAC
• RTL Group
• Ruben Kihuen for Congress
• Rubio Victory Committee
• Rudy for Indiana
• Rudy Salas for Congress
• Rulli for Ohio
• Rural America Counts PAC (Rac PAC)
• Rural Freedom Network
• Ruralvote.org
• Russ for Wisconsin
• Russell for Congress
• Rv Industry Association Political Action Committee
• RVFPAC
• RWJBarnabas Health
• Ryan Costello for Congress
• Ryan for Congress, Inc.
• Ryan Johnson for Congress
• Ryan LLC Political Action Committee (Ryanpac)
• S Corporation Association PAC (S-Corp PAC)
• S-3 Group
• S&B PAC
• S&P Global Inc. Political Action Committee
• Saatchi & Saatchi
• Saban Capital Group
• Sabin Metal Corp
• SAC Capital Advisors
• Sac PAC
• Saddleback Church
• Safari Club International PAC (Sci-PAC)
• SafeGraph
• Safeway Inc. Political Action Committee (Safeway PAC)
• Sag PAC Inc.
• SAGESURE
• SAILPOINT
• Salem Media Group Political Action Committee (Salem Media Group, Inc.)
• Salesforce
• Salk Institute for Biological Studies
• Salt River Valley Water Users' Association Political Involvement Committee ( Srppic)
• SALTCHUK
• Saltchuk Resources, Inc. PAC
• Salud Carbajal for Congress
• Sam Adams Alliance
• Sam Brown for Nevada
• Sam Wang for Congress
• Sammons Enterprises Inc. Political Action Committee
• Samsung Catalyst Fund
• Samsung Electronics America Inc Political Action Committee
• San Diego County Democratic Party (Fed. Acct.)
• San Francisco Democratic County Central Committee
• San Mateo County Democratic Central Committee-Federal
• Sana Biotechnology
• Sandoval for Colorado
• Sands Capital
• Sanford Bishop for Congress
• Sanford for Congress
• Sanford Health
• Sanofi Us Services Inc. Employees' Political Action Committee
• Santander UK plc
• Sapphire Ventures
• Sara Gideon for Maine
• Sara Gideon Victory Fund
• Sara Jacobs for Congress
• Sarah for Iowa
• Sarah Klee Hood for Ny
• Sarah Scaife Foundation
• Saronic
• Sasse Leadership Committee
• Satellogic
• Saudi Public Investment Fund
• Saulsbury Industries
• Savage Freedoms Relief Operations
• Save America
• Save America Fund
• Save America PAC
• Save American Freedom
• Save Our Country
• Save Our State Inc.
• Save Western Culture
• Saving Arizona PAC
• Sawtooth Political Action Committee (Sawtooth PAC)
• Scalise for Congress
• Scalise Leadership Fund
• Schatz for Senate
• Schiff for Senate
• Schiff Leads PAC
• Schiff Victory Fund
• Schmidt Futures
• Schmidt Ocean Institute
• Schmidt Sciences
• Schmitt for Senate
• Schneider for Congress
• Schneider National Inc., Transpac
• Scholten for Congress
• Scholten4iowa Campaign Committee
• School Freedom Fund
• Schoolsfirst Federal Credit Union Employees Federal PAC
• Schulte Roth & Zabel LLP
• Schumer Committee for the Majority
• Schumer Majority Committee
• Schupp for Congress
• Schwan's Company Political Action Committee
• Science Applications International Corporation Voluntary Political Action Committee
• Scott Brothers Entertainment
• Scott Brothers Global
• Scott Fitzgerald for Congress
• Scott for Congress
• Scott Garrett for Congress
• Scott Peters for Congress
• Scott Pruitt for Senate
• SCOTUSblog
• Scouts for Equality
• Screaming Eagle PAC Inc.
• Sd 2026
• Sd PAC
• Sea Change Leadership PAC
• Seaboard Corporation Political Action Committee
• Seafarers Political Activity Donation - Seafarers International Union of Na-Agliw
• Seal PAC Supporting Electing American Leaders PAC
• Seal PAC USA
• Sean N Parker Foundation
• Sean Patrick Maloney for Congress
• Searchlight Leadership Fund
• Second Congressional District Democratic Party
• Second District of Iowa Democratic Central Committee
• Second Trump Administration (White House)
• SecondMarket
• Secure NYS PAC
• Secure Tomorrow PAC
• Securian, Inc PAC
• Securing Our Future PAC
• Securities & Investment Industry
• Securities Industry and Financial Markets Association Political Action Committee
• Security Is Strength PAC
• Seec Victory Fund
• Seeds of Peace
• Seeking Justice PAC
• Seemann Composites
• SEIU COPE (Service Employees International Union Committee On Political Education)
• SEIU Texas
• Select Medical Corporation PAC
• Selective Insurance Company of America Political Action Committee
• Selective Service System
• Self for Congress
• Self-Insurance Institute of America, Inc. PAC (Self-Insurance PAC)
• Semafor
• Sempra Energy Employees Political Action Committee- Federal
• Senate Battleground Victory Fund
• Senate Conservatives Action
• Senate Conservatives Fund
• Senate Eagle PAC
• Senate Fight Fund
• Senate Georgia Battleground Fund
• Senate Impact Project
• Senate Leadership Fund
• Senate Majority PAC
• Senate Victory 2020
• Senate Victory Project
• Send in the Seal PAC
• Senior Care Pharmacy Coalition PAC
• Senior Star
• Sensenbrenner Committee
• Sensible American Solutions Supporting Everyone PAC
• Sentara Health
• Sentry Insurance a Mutual Company Federal Political Action Committee
• Sequoia Capital
• Serco Inc. Political Action Committee (Serco PAC)
• Servance for Congress Inc.
• Servant Leadership Fund
• Servant-Leader Fund, Inc.
• Serve America PAC
• Serve America Victory Fund
• Service Employees International Union Political Education & Action Fund
• Service First PAC
• Service First Women's Victory Fund
• Service Year Alliance
• Serving CA
• Sesame Workshop
• Seth Bodnar for Montana
• Seth for Massachusetts, Inc
• Seven Seven Six
• Sf Solidarity PAC
• Sfa Fund, Inc
• Shaheen for Senate
• Sharice for Congress
• Sharif Street for Us
• Sharp Tech
• Shawn Harris for Congress
• Sheehy Victory Committee
• Sheet Metal & Air Conditioning Contractors' National Assoc., Inc. Political Action Committee
• Shelby for U S Senate
• Shield AI
• Shield Ai Political Action Committee (Saipac)
• Shield PAC
• Shimer College
• Shipbuilders Council of America PAC
• Shomer
• Shopify
• Shore PAC
• Show Me Valor PAC
• Show-Me Political Action Committee
• Show-Me Strong PAC
• Sidley Austin LLP
• Sidley Austin LLP Good Government Fund
• Siembra PAC
• Siemens Energy, Inc. PAC
• Sierra Club
• Sierra Nevada Corporation
• Sierra Nevada Corporation PAC
• Silver Lake
• Silvergate Capital
• Simmons Hanly Conroy LLC
• Simon & Schuster
• Simons Foundation
• Simpson Thacher & Bartlett LLP
• Sinclair Broadcast Group
• Sinema for Arizona
• Sinema Leadership Fund
• Singleton Schreiber LLP
• Sioux City Explorers
• Siouxland Ethanol LLC PAC
• SiriusXM
• Site Development
• Sittenfeld for Senate
• Six PAC
• Sixteen Thirty Fund
• SKIPAC
• SKYBRIDGE
• Skydance Media
• Skydio
• Skype
• Slate Property Group
• Slotkin Victory Fund
• Small Business Investor Alliance PAC
• Smart Political Action League Local 137
• Smart Solutions PAC
• Smart Td PAC
• Smith & Nephew
• Smith & Nephew, Inc. PAC (S+N PAC)
• Smith Victory
• Smiths Group Services Corporation Political Action Committee
• Smoke Bend Associates LLC Federal Political Action Committee
• SMP
• Smucker Victory Committee
• Snake River Sugar Company Political Action Committee
• Snell & Wilmer
• Snow PAC
• Social Capital
• Social Capital Hedosophia SPACs (IPOA-IPOF)
• Society for Cardiovascular Angiography and Interventions Association PAC
• Society for Vascular Surgery Political Action Committee
• Society of Independent Gasoline Marketers of America PAC
• Society of Interventional Radiology Political Action Committee
• Society of Thoracic Surgeons Political Action Committee
• Sock It to 'Em PAC
• Soderberg 2018 Victory Fund
• Soderberg for Congress
• SoFi
• SoftBank Vision Fund
• Solana Policy Institute
• Solar Energy Industries Association PAC (Solarpac)
• SolarCity
• Soleo Health Holdings, Inc. PAC
• Solidarity Victory PAC
• Somos PAC
• Sony Corporation
• Soroban Capital Partners
• Soros Fund Management
• Sos America PAC
• South Alabama Conservatives PAC
• South Carolina Patriots PAC
• South Dakota Conservative PAC
• South Jersey United in Trust (Sjuit) PAC
• Southeast Cotton Committee (Secc) Southern Cottongrowers Inc/Se Cotton Ginners Assn
• Southeastern Lumber Manufacturers Assoc Political Action Committee
• Southern California Fund
• Southern Company Employees PAC
• Southern Company Gas PAC, Inc.
• Southern Glazer's Wine and Spirits PAC
• Southern Minnesota Beet Sugar Cooperative Political Action Committee
• Southern Nuclear Operating Company, Inc. PAC
• Southern Progress
• Southwest Airlines
• Southwest Airlines Co. Freedom Fund
• Southwest Airlines Pilots' Association Political Action Committee (Swapa PAC)
• Southwest Conservative PAC
• Southwest Gas Corporation Political Action Committee
• Space Exploration Technologies Corp. PAC
• Spaceship Earth PAC
• SpaceX
• Spanberger for Congress
• Spark Capital
• Speak Free Or Die PAC
• Speak Up PAC
• Special Competitive Studies Project
• Special Operations for America
• Specialty Equipment Market Association PAC Semapac
• Speed PAC