| Schmitz for Indiana | H | IN |
| Schneider for Congress | H | MA |
| Schneider for Congress | H | IL |
| Schneider for Congress | H | FL |
| Schneider National INC., Transpac | Q | WI |
| Schneider Victory | N | MA |
| Schneider Victory Fund | N | MD |
| Schnitzer Investment Corp PAC | N | WA |
| Schnure Super PAC | N | MD |
| Schock for Congress | H | IL |
| Schock Victory Committee | N | IL |
| Scholten4iowa Campaign Committee | H | IA |
| Scholten for Congress | H | MI |
| Scholten Victory Fund | N | NC |
| Scholten Victory Fund | N | DC |
| Scholten Victory Fund | N | DC |
| School Choice Federal PAC | N | DC |
| School Firsts Committee | N | NC |
| School Freedom Fund | O | DC |
| School Nutrition Association Political Action Committee | Q | MD |
| Schools and Communities First | E | CA |
| Schoolsfirst Federal Credit Union Employees Federal PAC | Q | CA |
| Schottenstein Stores Corporation PAC | N | OH |
| Schott/Houghtlen Campaign | H | OH |
| Schreiber for District 4 Republican | H | CO |
| Schrepel for U.S. Congress | H | NY |
| Schrepel Victory Committee | H | NY |
| Schriner Presidential Election Committee | P | OH |
| Schrock for Congress | H | IN |
| Schroder Ohio Victory Fund | N | KY |
| Schultz for People, Planet, and Peace | H | HI |
| Schulz for Congress | H | OH |
| Schulz for Ohio | H | OH |
| Schumann 4 Congress | H | TX |
| Schumer Majority Committee | N | DC |
| Schupp for Congress | H | MO |
| Schupp Victory Fund | N | MO |
| Schuring for Congress Committee | H | OH |
| Schuster for Congress 2018 | H | AZ |
| Schwan'S Company Political Action Committee | Q | MN |
| Schwarze for Congress | H | MN |
| Schweikert for Az-01 Republican Nominee Fund 2022 | H | VA |
| Schweikert-Lesko Victory Committee | H | MD |
| Schweikert Victory Committee | N | MD |
| Science Applications International Corporation Voluntary Political Action Committee | Q | VA |
| Science for Senate | S | PA |
| Science Innovation Technology Commission | S | CA |
| Science Truth and Expertise Matter PAC | N | IL |
| Scipher Medicine Corporation PAC (Scipher Pac) | N | MA |
| Scitech PAC | N | NJ |
| S. C. Johnson & Son, INC Political Action Committee | Q | WI |
| Sconnie PAC | N | WI |
| S Corporation Association PAC (S-Corp Pac) | Q | DC |
| Scot Forge Company Political Action Committee | Q | IL |
| Scot Gallaher for Congress | H | TX |
| Scot John Tomaszewski for Congress | H | NJ |
| Scott Alan Ayers Presidential Campaign Committee | P | IL |
| Scott Armey for Congress | H | TX |
| Scott Aubart American Independent Party | S | WI |
| Scott Baugh for Congress | H | CA |
| Scott Baugh Victory Fund | N | CA |
| Scott Bland for Congress | H | TX |
| Scott Bradford for President LLC | P | VA |
| Scott Christian Bailey for Congress | H | CO |
| Scott Collier for Congress | H | TX |
| Scott Cooper for Congress | H | NC |
| Scott County Democratic Central Committee | X | IA |
| Scott C. Palmer for President 2024 | P | IN |
| Scott Dennis for the 5th District | X | NY |
| Scott E Saunders | P | NY |
| Scott Etter US Congress Candidate | H | KY |
| Scott Fitzgerald for Congress | H | WI |
| Scott Fitzgerald Victory Fund | N | WI |
| Scott for Congress | H | WA |
| Scott for Congress | H | VA |
| Scott for Michigan | S | MI |
| Scott for Utah | H | UT |
| Scott Franklin for Congress | H | FL |
| Scott Franklin Wingman Fund | N | FL |
| Scott Gryder for Congress | H | IL |
| Scott Gryder Victory Fund | N | WI |
| Scottie Griffin'S Assistants | S | MD |
| Scott Kafka | P | IL |
| Scott Livingston for Congress | H | NY |
| Scott Mandel for Congress | H | TX |
| Scott Murphy for Congress | H | DC |
| Scott Nazarino for US Senate | S | WA |
| Scott Noren for Congress | H | NY |
| Scott Peters for Congress | H | CA |
| Scott Phillip Lewis for Congress | H | NY |
| Scott Phillips for Congress | H | OR |
| Scott Pruitt for Senate | S | OK |
| Scotts | P | FL |
| Scott Salmon for Congress | H | NJ |
| Scott Sturgill for Congress | H | FL |
| Scott Sturgill for Congress | H | FL |
| Scott Sykes Campaign Fund | H | KY |
| Scott Taylor for Congress | H | VA |
| Scott Taylor for Senate | S | VA |
| Scott Vieira for Congress | H | TN |
| Scott Walker INC | P | WI |
| Scott Wallace for Congress | H | PA |
| Scott Yates for U.S. Representative | H | CO |
| Scotty Moore for Congress | H | FL |
| Scotty Robinson for Congress | H | LA |
| Sc Parents Action | O | VA |
| Screaming Eagle PAC INC. | O | VA |
| Scurry for Congress | H | TX |
| Sc Values PAC | O | SC |
| Sc Victory Fund | N | TX |
| Scwib PAC Committee to Elect Scwib Women | N | GA |
| S. David Goenaga-Torres Cd5 | H | CO |
| Sd Victory Fund | N | TX |
| Seabaugh 2022 | S | MO |
| Seaboard Corporation Political Action Committee | Q | KS |
| Sea Change Leadership PAC | Q | CA |
| Seafarers Entertainment and Allied Trades Union, Afl-Cio | N | MD |
| Seafarers Political Activity Donation - Seafarers International Union of Na-Agliw | Q | MD |
| Sea for Liberty | H | WA |
| Seagrass PAC | N | FL |
| Sealaska Corporation | I | AK |
| Seal PAC Supporting Electing American Leaders PAC | Q | DC |
| Seal PAC USA | O | GA |
| Seals for Truth | O | DC |
| Seal Team Pt PAC | N | VA |
| Sean Casten Victory Fund 2020 | N | IL |
| Sean Casten Victory Fund 2022 | N | DC |
| Sean Collinson for President | P | CA |
| Sean Dougherty for Congress | H | CA |
| Sean Flynn for Congress | H | CA |
| Sean for Congress | H | VA |
| Sean Francisco for America | U | KY |
| Sean Harrison for Congress | H | CA |
| Sean Higgins for Congress | H | ID |
| Sean Jackson for Congress Committee | H | FL |
| Sean Joyce for Congress | H | ME |
| Sean Lyons for President | P | AZ |
| Sean Meloy for Congress | H | PA |
| Sean Patrick Maloney for Congress | H | NY |
| Sean Patrick Maloney House Victory Fund | N | DC |
| Seanpaulsegura.Com | H | TX |
| Sean Pignatelli Political Campaign | H | NJ |
| Sean Smith Missouri 5th | H | MO |
| Sean Thomas McGuire | P | FL |
| Sean Thorne for Senate | S | AK |
| Searchlight Leadership Fund | Q | DC |
| Seattle Democratic Socialists of America | I | WA |
| Seattle Dsa | I | WA |
| Seaworld Parks & Entertainment INC. PAC | Q | FL |
| Sebastian Cosme | P | OK |
| Sebastian Gehrig for Congress | H | TX |
| Secateurs Fund | N | NY |
| Seckinger for Senate | S | MT |
| Second Appeal PAC | N | IL |
| Second Bill of Rights PAC | N | CA |
| Second Chance PAC | O | NY |
| Second Congressional District Democratic Party | Y | MI |
| Second Congressional District Republican Party of Minnesota | Y | MN |
| Second District Missouri Democrats | X | MO |
| Second District of Iowa Democratic Central Committee | Y | IA |
| Second District PAC | N | MS |
| Second Front Systems INC PAC | N | VA |
| Second Generation | N | PA |
| Second Service Victory Fund | H | AZ |
| Secular Democrats of America PAC | V | DC |
| Secure America First | O | CO |
| Secure American Liberty | O | PA |
| Secureamericanow.Org | I | DC |
| Secure America PAC | N | FL |
| Secure Arizona'S Future | O | AZ |
| Secure Energy for America Association PAC (Seapac) | Q | PA |
| Secure Future USA | O | NV |
| Secure Homeland Rebuild Economy Vote & Educate PAC | N | IN |
| Secure Nevada'S Future | I | NV |
| Secure Nys PAC | O | GA |
| Secure Our Freedom Action Fund | O | VA |
| Secure Our Senate 2020 | N | DC |
| Secure Our Senate 2021 | S | DC |
| Secure PAC | Q | MS |
| Secure Progress | N | VA |
| Secure Progress | V | VA |
| Secure Progress | V | VA |
| Secure the Border SUPERPAC | O | CA |
| Secure the Count PAC | O | OH |
| Secure the Vote | O | NJ |
| Secure the Vote | O | NC |
| Secure Virginia PAC | N | WI |
| Securian, INC PAC | Q | MN |
| Securing A Kinder Democracy PAC | N | CA |
| Securing Americas Might Sam PAC | N | WI |
| Securing Louisiana'S Future | O | DC |
| Securing Ohio'S Future Action Fund, INC. | O | OH |
| Securing Oklahoma'S Future | N | OK |
| Securing Our Future PAC | N | DC |
| Securing Our Majority 2020 | S | GA |
| Securing Our Silvers PAC | N | DC |
| Securing Progress Across Our Nation PAC (Span Pac) | N | VA |
| Securing the Republic for Our Next Generation | N | AL |
| Securitas Security Services USA Political Action Committee (Securitas USA Pac) | Q | CA |
| Securities Industry and Financial Markets Association Political Action Committee | Q | DC |