| Name | City | St. | Country | Email | Scope | Network | Update |
| Cafe-Politics at UCF | Orlando | Florida | United States | Email | Local | | 08-20
2003 |
| Cal Corps Public Service Center | Berkeley | California | United States | Email | Local | | 05-08
2003 |
| Cal Poly Gays, Lesbians & Bisexuals United | San Luis Obispo | California | United States | Email | Local | | 09-21
2002 |
| Cal State Hayward Alliance for Social Justice | Hayward | California | United States | Email | Local | | 11-11
2003 |
| Cal State San Marcos Progressive Activist Network | | California | United States | Email | Local | | 09-30
2004 |
| Cal Vegetarians | Berkeley | California | United States | Email | Local | | 10-09
2002 |
| California Coalition Against Poverty Youth | San Diego | California | United States | Email | Local | Network | 02-20
2004 |
| California State Student Association (CSSA) | Long Beach | California | United States | Email | State | Network | 09-26
2007 |
| California Student Sustainability Coalition (University of California) | Santa Cruz | California | United States | | State | Network | 09-09
2006 |
| Californians for Justice | | California | United States | Email | State | | 08-14
2005 |
| Californians for Quality Higher Education | | California | United States | Email | State | Network | 03-29
2005 |
| Caltech Environmental Task Force (CETF) | Pasadena | California | United States | Email | Local | | 10-13
2002 |
| Calvin College Social Justice Coalition | Grand Rapids | Michigan | United States | Email | Local | | 06-09
2006 |
| CAMesera Production | Manila | | Philippines | Email | National | | 04-11
2006 |
| Campaign Corps - A Project of EMILY's List | Washington | District Of Columbia | United States | Email | National | | 12-16
2008 |
| Campaign for Women's Lives | Washington | District Of Columbia | United States | Email | National | Network | 09-09
2006 |
| Campaign to Send Patrick Murphy to Congress | Lowell | Massachusetts | United States | Email | National | | 09-17
2007 |
| Campus Antiwar Network | | | United States | Email | National | Network | 01-23
2005 |
| Campus Camp Wellstone | Saint Paul | Minnesota | United States | Email | National | | 03-28
2005 |
| Campus Community For Public Healthcare | Edmonton | Alberta | Canada | Email | Local | | 04-17
2006 |
