10608 committees
| Name | Candidate | Type | Party | City | First Registered |
|---|---|---|---|---|---|
| Jack Keyes for Probate Judge | John A. Keyes | Candidate Committee | Democrat | Branford | Jan. 30, 2002 |
| Jack Is Back* | Jack C. Orchulli | Exploratory Committee | Republican | Darien | Oct. 7, 2013 |
| Jack Is Back | Jack C. Orchulli | Candidate Committee | Republican | Darien | Feb. 20, 2014 |
| Jack Hennessy For Senate | John F. Hennessy | Candidate Committee | Democrat | Bridgeport | Jan. 25, 2008 |
| Jack Hennessy 2020 | John (Jack) F Hennessy | Candidate Committee | Democrat | Bridgeport | Jan. 13, 2020 |
| Jack Hennessy 2018 | John (Jack) F Hennessy | Candidate Committee | Democrat | Bridgeport | Feb. 13, 2018 |
| Jack Hennessy 2016 | John (Jack) F Hennessy | Candidate Committee | Democrat | Bridgeport | Jan. 12, 2016 |
| Jack Fazzino For CT | Jonathan W Fazzino | Candidate Committee | Democrat | Meriden | Dec. 8, 2025 |
| Jack Chiaramonte For Senate | Jack Chiaramonte | Candidate Committee | Republican | Norwalk | Feb. 29, 2012 |
| Jack C Morehouse | Jack C Morehouse | Candidate Exemption Committee | Democrat | Stonington | July 27, 2017 |
| J.P.MORGAN CHASE | — | Political Action Committee | — | Bridgeport | Oct. 6, 2002 |
| J.P. Morgan Chase & Co. Connecticut State PAC | — | Political Action Committee | — | Bridgeport | Dec. 10, 2001 |
| J.P. Morgan Chase & Co. | — | Political Action Committee | — | Bridgeport | July 10, 2002 |
| J. Bryniczka For Probate Judge | Jacob P Bryniczka | Candidate Committee | Republican | Westport | May 28, 2010 |
| J C Cinelli | J C Cinelli | Candidate Exemption Committee | Republican | Trumbull | July 26, 2017 |
| Izzo/Marden 2001 | — | Political Action Committee | — | Westport | April 9, 2002 |
| Ivers 2017 | Tracy C Ivers | Exploratory Committee | Unaffiliated | Meriden | June 20, 2017 |
| IUPowerPAC-State | — | Political Action Committee | — | New Haven | April 11, 2002 |
| IUOE Local 478 Political Action Committee State/Local | Benedict W. Cozzi | Political Action Committee | — | Hamden | Dec. 20, 2007 |
| IUOE Local 478 Political Action Committee - State/Local | Craig Metz | Political Action Committee | — | Hamden | Oct. 23, 2008 |
| Italian American Republican Coalition of Connecticut | Michael C. Bisciglia | Political Action Committee | — | Bridgeport | June 8, 1999 |
| Italian American Republican Coalition | — | Political Action Committee | — | Bridgeport | Jan. 10, 2002 |
| Italian American Leadership Council | Domenic J. Paniccia | Political Action Committee | — | Monroe | June 8, 1999 |
| Italian American Democratic Club | John A. Sarlo | Political Action Committee | — | Waterbury | June 8, 1999 |
| Isso/Marden 2001 | — | Political Action Committee | — | Westport | April 8, 2002 |
| Ironworkers Local 424 PAC | — | Political Action Committee | — | New Haven | Nov. 28, 2001 |
| Iron-PAC-424 | — | Political Action Committee | — | New Haven | July 2, 2002 |
| IRON PAC-424 | — | Political Action Committee | — | New Haven | July 6, 2004 |
| Iron PAC 424 | — | Political Action Committee | — | North Haven | March 26, 2003 |
| Iron Pac 424 | — | Political Action Committee | — | North Haven | Nov. 1, 2003 |
| Iron Pac 15 | Joseph P Toner | Political Action Committee | — | Hartford | May 29, 2020 |
| IRON PAC - 424 | — | Political Action Committee | — | North Haven | April 5, 2005 |
| Irish-American Political Partnership | Siobhan E. Beas | Political Action Committee | — | Rocky Hill | Dec. 21, 2000 |
| Irish-American PAC | — | Political Action Committee | — | Rocky Hill | April 10, 2003 |
| Irish American Political Partnership | — | Political Action Committee | — | Rocky Hill | Aug. 21, 2002 |
| Irish American Democrats of CT | Eileen M. Heaphy | Political Action Committee | — | Stamford | Aug. 7, 2001 |
| Irish American Democrats Of CT | Eileen M. Heaphy | Political Action Committee | — | Stamford | Aug. 7, 2001 |
| Irish American Democrats in CT PAC | — | Political Action Committee | — | Stamford | Oct. 28, 2006 |
| Irish American Democrats In Connecticut | — | Political Action Committee | — | Stamford | July 7, 2006 |
| Iris Sanchez for State Rep. | Iris N Sanchez | Candidate Committee | Democrat | New Britain | Nov. 23, 2025 |
| Iris N Sanchez | Iris N Sanchez | Candidate Exemption Committee | Democrat | New Britain | July 28, 2017 |
| Irene S Tibus | Irene S Tibus | Candidate Exemption Committee | Republican | Stonington | July 31, 2017 |
| Irene M Haines | Irene M Haines | Candidate Exemption Committee | Unaffiliated | East Haddam | Aug. 22, 2017 |
| Irene G Masse | Irene G Masse | Candidate Exemption Committee | Republican | Meriden | July 24, 2017 |
| Ippolito For Probate | Alphonse Ippolito | Candidate Committee | Republican | New Haven | May 27, 2022 |
| Intl. Union of PAT LEC PAC | — | Political Action Committee | — | Berlin | April 10, 2006 |
| Intl. Brotherhood of Boilermakers PAC | — | Political Action Committee | — | East Hartford | Jan. 10, 2006 |
| Internnational Brotherhood of Boilermakers Local 237 PAC Fund | — | Political Action Committee | — | East Hartford | Oct. 24, 2006 |
| International Union of Painters and Allied Trades | — | Political Action Committee | — | Washington | July 10, 2002 |
| INternational Union of Painters and Allied Trades | — | Political Action Committee | — | Washington | Oct. 7, 2006 |