1,697 registered lobbyists
| Name | Clients | Expenditures |
|---|---|---|
| Cap O'Rourke | 7 | -- |
| Carla M Ferrucci | 1 | -- |
| Carla Mavares Cancian | 1 | -- |
| Carlie Hansen | 1 | -- |
| Carly Eckstrom | 1 | -- |
| Carly Ellefsen | 1 | -- |
| Carly Griffith | 1 | -- |
| Carly Melin | 1 | -- |
| Carol Moss | 3 | -- |
| Carole Specktor | 1 | -- |
| Carolina Hernandez Ortiz | 1 | -- |
| Caroline Burns | 3 | -- |
| Carolyn Berninger | 1 | -- |
| Carolyn Cook | 1 | -- |
| Carrie Lucking | 1 | -- |
| Carrie Ruud | 8 | -- |
| Cary Stephenson | 1 | -- |
| Casey Thomas Metcalfe | 1 | -- |
| Cassandra Moore | 1 | -- |
| Cassie Larson | 1 | -- |
| Catarina Gomez | 1 | -- |
| Catherine Bennett | 1 | -- |
| Catherine Regina Blaeser | 1 | -- |
| Cathy Johnson | 1 | -- |
| Cathy McLeer | 1 | -- |