| A | B |
| Legal | Provide legal services and protect city interests |
| Library | Oversee the Houston City Library system |
| Fire | Provide fire fighting services |
| Police | Enforce the laws and keep citizens safe |
| Solid Waste | Take care of trash |
| Health and Human Services | Provide medical services to citizens |
| Parks and Recreation | Oversee the parks and programs for recreation |
| Aviation | Oversee the development and running of airports |
| Municipal Courts Justice | Oversee the court system for the city |
| Finance and Administration | Prepares the annual budget under the direction of the Mayor |
| Personnel | Oversees policies in hiring,and paying people |