| Claudia Tenney for Congress Victory Fund | N | NY |
| Claudia Zapata for US Congress | H | TX |
| Clay Faircloth for Congress Tn6 | H | TN |
| Clay for Virginia | H | VA |
| Clay Jr. for Congress | H | MO |
| Clayton Brooks for Congress | H | NC |
| Clayton County Democratic Central Committee | X | IA |
| Clayton Fuller for Congress | H | GA |
| Clayton G Walker Committee | S | SD |
| Clayton Hunsaker Committee | H | UT |
| Clayton Pajunas for Congress | H | NJ |
| Clayton Ressler for President | P | TX |
| Clay Wagner for Congress | H | MS |
| Clean and Prosperous America PAC | N | WA |
| Cleanbluegreen PAC INC | — | MA |
| Cleancapital Holdings LLC PAC | N | NY |
| Clean Energy Democrats PAC | N | RI |
| Clean Energy for America INC. Political Action Committee (Ce4a Pac) | N | CA |
| Clean Indiana Now | O | IN |
| Cleanoceanspac | O | AZ |
| Clean PAC | Q | CA |
| Clean Slate America 2020 | V | GA |
| Clean Slate America 2024 | V | GA |
| Clean Up Congress PAC | O | TN |
| Clean Up Our Courts Arizona | O | AZ |
| Clean Wave | O | DC |
| Clean Wave | O | DC |
| Clear Channel Outdoor, LLC. PAC | Q | AZ |
| Clear Choice PAC, INC | O | MA |
| Clear Government for the People | V | GA |
| Clearpath Action Fund, INC. | O | NC |
| Clear the House PAC | O | MD |
| Clearway Energy Group LLC PAC | N | CA |
| Clearway Energy INC PAC | Q | CA |
| Cleaver for Congress | H | MO |
| Cleaver Missouri Victory Fund | N | DC |
| Cleco Federal PAC, Cleco Corporation | N | LA |
| Cleco Political Action Committee, Cleco Corporation | Q | LA |
| Clementine for Congress | H | NY |
| Clemmer for Congress | H | NH |
| Clemmie Harris for Congress | H | NY |
| Clemmons for Kansas | H | KS |
| Cleo Fields for Congress | H | LA |
| Clermont County Republican Leadership PAC | O | OH |
| Clervrain, Manetirony | I | IN |
| Cleveland 2016 Host Committee INC | X | OH |
| Cleveland-Cliffs INC. Political Action Committee (Cliffspac) | Q | OH |
| Cleveland for All | O | OH |
| Cleveland for Congress | H | SC |
| Cleveland for Congress Committee | H | ID |
| Cleveland for Senate Committee | S | ID |
| Cleveland Forward PAC | O | OH |
| Cleveland Jobs and Maritime PAC - Fsl Fund | N | OH |
| Click for Change | H | NC |
| Cliff4congress | H | WA |
| Cliff Bentz for Congress | H | OR |
| Cliff Detemple for Congress | H | WI |
| Clifford Buzard for President | P | AZ |
| Clifford David Griffin | P | FL |
| Clifford for Congress | H | KS |
| Cliff Wiley for Congress | H | TX |
| Clifton Roberts for President | P | CA |
| Climaco Wilcox Peca PAC | Q | OH |
| Climate 2021 | N | CO |
| Climate Action Fund | V | DC |
| Climate Cabinet PAC | N | CA |
| Climate Champions PAC | Q | OR |
| Climate Democrats Act | N | MI |
| Climate Emergency Advocates | I | MA |
| Climate Emergency Voters PAC | O | MA |
| Climate Fund | V | FL |
| Climate Hawks Vote Political Action | O | CA |
| Climate Leaders PAC | O | VA |
| Climatenet PAC | O | CA |
| Climate Power Action | O | DC |
| Climate Reality Action Fund | I | DC |
| Cline-Jones, April | I | IA |
| Clinerussellforpresident.Com | P | TX |
| Clint Beatty for President | P | TX |
| Clint Curtis for Congress | H | FL |
| Clint Dorris for Congress | H | TX |
| Clint Moore for Congress Committee | H | TX |
| Clint Morgan for Congress | H | TX |
| Clint Smith for Congress | H | AZ |
| Clipboard PAC | N | CT |
| Clorox Employees' Political Action Committee | Q | CA |
| Cloud for Congress | H | TX |
| Cloud Peak Energy Resources LLC Employee PAC | Q | CO |
| Cloud Texas Victory Committee | N | MD |
| Cloud Victory Fund | N | MD |
| Clouse for the House 2022 | H | TN |
| Clowns SUPERPAC | O | OH |
| Clt Host 2020 INC | X | NC |
| Club America | V | FL |
| Club At Westpark Democrats | X | CA |
| Club for Conservatives | W | NC |
| Club for Growth | E | DC |
| Club for Growth | I | DC |
| Club for Growth Action | O | DC |
| Club for Growth PAC | Q | DC |
| Clyde Benson of the People | S | TN |
| Clyde Elrod'S Campaign Committee | H | GA |
| Clyde for Congress, INC. | H | GA |
| Clyde Lynch for President | P | MI |
| Clynch for Congress | H | WA |
| Cme Group INC. PAC | Q | IL |
| Cmoc Mining USA PAC | N | AZ |
| Cmr Political Action Committee | Q | VA |
| Cms Energy Corporation Employees for Better Government- Federal | Q | MI |
| Cmte to Elect Larry Williams | H | AZ |
| Cna Financial Corporation Citizens for Good Government | Q | IL |
| Cng Holdings, INC. PAC | Q | OH |
| Cnl Financial Group INC Politicial Action Committee | Q | FL |
| Cnx Resources Corporation Political Action Committee (Cnx Pac) | N | MI |
| Co91 for the Reformation of Our Souls | P | NJ |
| Coaches 101 PAC | N | NJ |
| Coaches! 101 Political Action Committee | H | NJ |
| Coach Guy'S Leadership PAC | N | PA |
| Coach PAC | O | AL |
| Coach PAC | N | AL |
| Coach Vera 4 Congress | H | NC |
| Coal Country Conservatives Political Action Committee | N | WY |
| Coal Country Conservatives Political Action Committee | N | WY |
| Coalesce Mississippi | O | MS |
| Coalition Action | V | IL |
| Coalition Against Voter Fraud | N | OR |
| Coalition for A Better Future | V | VA |
| Coalition for American Veterans Political Action Committee | O | DC |
| Coalition for America'S Future | O | WI |
| Coalition for App Fairness | E | DC |
| Coalition for A Prosperous America | O | CO |
| Coalition for A Safe America | O | VA |
| Coalition for Essential Workers | N | DC |
| Coalition for Fantasy Sports PAC | V | VA |
| Coalition for Grassroots Progress | N | CA |
| Coalition for Green Capital Action Fund | I | DC |
| Coalition for Growth & Opportunity INC. | I | KY |
| Coalition for Healthcare Finance Political Action Committee (Chfpac) | N | DC |
| Coalition for Kentucky Job Creation | O | KY |
| Coalition for Liberty and Progress | V | MA |
| Coalition for Life Changing Technologies PAC Corp | N | NY |
| Coalition for Ohio'S Future | O | OH |
| Coalition for Open Patent Release, Spirit of America | P | NJ |
| Coalition for Progress | O | NJ |
| Coalition for Progressive Policies | N | CA |
| Coalition for Renewable Natural Gas Political Action Committee (Dba Rng Pac) | N | CA |
| Coalition for Sensible Election Reform | O | MI |
| Coalition for Social Justice INC PAC | N | MA |
| Coalition of Black Trade Unionists | I | OH |
| Coalition of Franchisee Associations PAC (Cfa Pac) | N | GA |
| Coalition of Minority Business Owners | O | MD |
| Coalition of Socialist Gamers | N | NV |
| Coalition One | O | CT |
| Coalition to Grow San Francisco - Grow Sf PAC | I | CA |
| Coalpac, A Political Action Committee of the National Mining Association | Q | DC |
| Coastal Federal Credit Union PAC | Q | NC |
| Coast Professional, INC. Political Action Committee | N | DC |
| Coatney for Congress | H | NC |
| Cobalt Advocates | I | CO |
| Cobalt Advocates Federal Political Action | N | CO |
| Cobb Victory Fund | N | NY |
| Cobham Holdings INC. Political Action Committee 'Cobham Pac' | Q | VA |
| Coburn for Maryland | H | MD |
| Coca-Cola Bottling Company United INC. Committee for Good Government | N | AL |
| Coca-Cola Consolidated, INC. Political Action Committee | Q | NC |
| Cockburn Victory Fund | N | DC |
| Coconut Brat PAC | O | CA |
| Coday for US Senate | S | WA |
| Code Blue | V | CA |
| Coder for Congress | H | PA |
| Cody Andrews' Campaign | S | TX |
| Cody Ballard for Vice President 2024 | P | MD |
| Cody for California | H | CA |
| Cody for Oregon | H | OR |
| Cody Newman for President | P | AZ |
| Coeur Mining, INC. PAC | Q | IL |
| Coffman for Congress 2018 | H | CO |
| Coghill for Congress | H | AK |
| Cognizant Technology Solutions Corporation Political Action Committee (Cognizant Pac) | Q | NJ |
| Cognosante Political Action Committee | N | VA |
| Cohen for America | H | IL |
| Cohen for Congress | H | TN |
| Coherus Biosciences Political Action Committee | Q | CA |
| Cohn for Congress 2020 | H | FL |
| Cohn for Florida Exploratory Committee | H | DC |
| Cohnreznick LLP Political Action Committee | Q | NY |
| Coinbase, INC. Innovation PAC (Coinbase Innovation Pac) | N | CA |
| Coinbase, INC. Political Action Committee | N | CA |
| Coinraise Federal PAC | N | CA |
| Coker for Congress Committee | H | MD |
| Colarusso for Congress | H | MA |
| Colby Jenkins for Congress | H | UT |
| Colby Jenkins Victory Fund | N | WI |
| Cold Planet Or Die | O | CO |
| Cole Combined Committee | N | VA |
| Cole for Colorado | S | CO |
| Cole for Congress | H | OK |
| Cole for Indiana | H | IN |
| Coleman for Congress | H | AL |
| Coleman for Congress | H | IN |