Congressional Member and Staff Organizations

The following is a list of all Congressional Member Organizations and Congressional Staff Organizations from the 107th to 114th Congress. For information on forming an organization, please see the respective Congressional Members Organization or Congressional Staff Organization information page.

To register a CMO/CSO, please see our CMO/CSO Registration Form.

Congressional Member Organizations

•  114th Congress CMO List 
• 113th Congress CMO List
• 112th Congress CMO List
• 111th Congress CMO List
• 110th Congress CMO List
• 109th Congress CMO List
• 108th Congress CMO List
• 107th Congress CMO List

Congressional Staff Organizations

• 114th Congress CSO List
• 113th Congress CSO List
• 112th Congress CSO List