10477 committees
| Name | Candidate | Type | Party | City | First Registered |
|---|---|---|---|---|---|
| Stamford Republican Town Committee | Daniel M. McCabe | Party Committee | Republican | — | July 10, 1998 |
| Stamford Firefighters Local 786 PAC Fund | — | Political Action Committee | — | Stamford | July 9, 2004 |
| Stamford Firefighters Local 786 PAC | James Romaniello | Political Action Committee | — | Stamford | Feb. 17, 2000 |
| Stamford Democratic City Committee | Ellen Camhi | Party Committee | Democrat | Stamford | July 10, 1998 |
| Stafstrom PAC | — | Political Action Committee | — | Bridgeport | Aug. 16, 2018 |
| Stafstrom 2026 | Steven J Stafstrom | Candidate Committee | Democrat | Bridgeport | Jan. 15, 2026 |
| Stafford Democratic Town Committee | Edward M. Muska | Party Committee | Democrat | Stafford Springs | July 10, 1998 |
| Sprague Republican Town Committee | Dennison L. Allen | Party Committee | Republican | Versailles | July 9, 1998 |
| Sprague Democratic Town Committee | Joan Charron Nagle | Party Committee | Democrat | Baltic | June 28, 2000 |
| Southington Republican Town Committee | Sharon M. O'Brien | Party Committee | Republican | Southington | Aug. 5, 1998 |
| Southington Democratic Town Committee | Gerald P. Crean | Party Committee | Democrat | Southington | July 9, 1998 |
| Southbury Republican Town Committee | Jack W. Fischer | Party Committee | Republican | Southbury | July 9, 1998 |
| Southbury Democratic Town Committee | Vincent J. DiCara | Party Committee | Democrat | Southbury | July 9, 1998 |
| South Windsor United Community Party | Arthur Adduci | Party Committee | United Community Party | East Windsor Hill | May 11, 2023 |
| South District Firefighters Local 3918 PAC Fund | Christopher L. Gamache | Political Action Committee | — | Middletown | July 27, 2006 |
| Sound CT PAC | Sean M Scanlon | Political Action Committee | — | Guilford | Nov. 14, 2017 |
| Somers Republican Town Committee | Rick Numrych | Party Committee | Republican | Somers | July 9, 1998 |
| Somers PAC | Jordanne Anderson | Political Action Committee | — | Mystic | June 10, 2019 |
| Somers Democratic Town Committee | Maurice J. Rondeau | Party Committee | Democrat | Somers | July 9, 1998 |
| Solidarity in Action | Renato Basile | Independent Expenditure Political Committee | — | New Milford | Oct. 9, 2025 |
| Sojourner Network of Democratic Women | Leota M. Tucker | Political Action Committee | — | Newington | Jan. 12, 2001 |
| Sojourner Network Of Democratic Women | Joyce H. Petteway | Political Action Committee | — | West Hartford | Jan. 12, 2001 |
| Slap For Senate 2026 | Derek M Slap | Candidate Committee | Democrat | West Hartford | Dec. 29, 2025 |
| THOMAS BRUENN SIX PAC. | — | Political Action Committee | — | Meriden | Nov. 7, 2002 |
| Six PAC | Anita Madzik | Political Action Committee | — | Meriden | Jan. 1, 1998 |
| Singh PAC | — | Political Action Committee | — | Norwich | March 9, 2022 |
| Simsbury/Farmington Valley Republican Women's Club | Mary N Turner | Political Action Committee | — | Simsbury | Dec. 20, 2010 |
| Simsbury Republican Town Committee | William B. Gardner | Party Committee | Republican | West Simsbury | July 9, 1998 |
| Simsbury Democratic Town Committee | Jane Heitman Green | Party Committee | Democrat | West Simsbury | July 9, 1998 |
| Sidewalks and Storefronts PAC | — | Political Action Committee | — | New Haven | March 9, 2024 |
| Shoreline League of Democratic Women | Susan Belinda Jones | Political Action Committee | — | Westbrook | Sept. 26, 2005 |
| Shoreline League Of Democratic Women | Susan B. Jones | Political Action Committee | — | Westbrook | Sept. 26, 2005 |
| Shoreline Green Party | Justin C Paglino | Political Action Committee | — | Guilford | Sept. 26, 2022 |
| Sherman Republican Town Committee | Robert D. Bradshaw | Party Committee | Republican | Sherman | July 9, 1998 |
| Sherman Democratic Town Committee | Frank Muska | Party Committee | Democrat | Sherman | July 9, 1998 |
| Shelton Republican Town Committee | Frank C. Pagliaro | Party Committee | Republican | Shelton | July 9, 1998 |
| Shelton Democratic Town Committee | David McGovern | Party Committee | Democrat | Shelton | July 9, 1998 |
| Sheet Metal Workers Local #40 | Sam Giglio | Political Action Committee | — | Rocky Hill | Jan. 1, 1998 |
| Sheet Metal Workers Local # 38 | — | Political Action Committee | — | New Milford | April 19, 2000 |
| Sharon Republican Town Committee | Cynthia P. Rubicam | Party Committee | Republican | Sharon | July 9, 1998 |
| Sharon Democratic Town Committee | Thomas H. Bartram | Party Committee | Democrat | Sharon | July 9, 1998 |
| Shannon for the 117th 2026 | Michael L Shannon | Candidate Committee | Democrat | Milford | Jan. 3, 2026 |
| Seymour Republican Town Committee | Patrick Lombardi | Party Committee | Republican | Seymour | July 9, 1998 |
| Seymour Democratic Town Committee | John J. Greco | Party Committee | Democrat | Seymour | July 18, 2000 |
| Seth Klaskin for Probate Judge | Seth C Klaskin | Candidate Committee | Democrat | Madison | July 31, 2025 |
| Seat At The Table PAC | — | Political Action Committee | — | Bloomfield | Sept. 18, 2023 |
| Scotland Republican Town Committee | Stephanie Abraham | Party Committee | Republican | Scotland | May 1, 2000 |
| Scotland Democratic Town Committee | Susan F. Smith | Party Committee | Democrat | Baltic | July 9, 1998 |
| Scanlon 2026 | Sean M Scanlon | Candidate Committee | Democrat | Guilford | Jan. 27, 2026 |
| SHORE PAC | Devin R Carney | Political Action Committee | — | Old Saybrook | June 27, 2023 |