| Staff | Title | Departments | Phone | Email |
|---|
| 24-hr Emergency/Non-Emergency | | Police | (925) 371-4987 | |
| School Resource Officer (Dispatch) | | Police | (925) 371-4987 | |
| Training Office - Police | | Police | (925) 371-4833 | |
| Chief of Police Office | | Police | (925) 371-4710 | |
| Dispatch Center | | Police | (925) 371-4987 | |
| Animal Control | | Police | (925) 371-4987 | |
| Traffic Education | | Police | (925) 371-4858 | |
| Traffic - Police | | Police | (925) 371-4850 | |
| Criminal Investigations Unit | | Police | (925) 371-4700 | |
| Crime Prevention | | Police | (925) 371-4797 | |
| Main Police Phone Number | | Police | (925) 371-4900 | |
| Police Records | | Police | (925) 371-4900 | |
| Property & Evidence | | Police | (925) 371-4940 | |
| Patrol Watch Commander | | Police | (925) 371-4820 | |
| Patrol Sergeant | | Police | (925) 371-4825 | |
| Horizons Family Counseling | | Police | (925) 371-4747 | |
| Hearing Impaired | | Police | (925) 371-4982 | |
| Gang Tip Hotline | | Police | (925) 371-4790 | |
| Rucker, Ryan | Fire Marshal | Fire | (925) 454-2361 | |
| Testa, Joe | Fire Chief | Fire | (925) 454-2361 | |
| Vacant, Vacant | Cybersecurity Manager | Administrative Services | (925) 960-4100 | |
| Baker, Anwan | Library Services Director | Library | (925) 373-5509 | Email |
| Smith, Brent | Community Development Director | Community Development | (925) 960-4400 | Email |
| Stuth, Benedict (Benny) | Airport Manager | Innovation & Economic Development | (925) 960-8230 | Email |
| Cardwell, Brandon | Innovation & Economic Development Director | Innovation & Economic Development | (925) 960-4140 | Email |
| Brown, Carl | Public Works Director | Public Works | (925) 960-8003 | Email |
| Cilley, Kimberly | City Attorney | City Attorney | (925) 960-4150 | Email |
| Elam, Debbie | City Clerk | City Clerk | (925) 960-4200 | Email |
| Burch, Marianna | City Manager | City Manager | (925) 960-4040 | Email |
| Jones, Christopher | Senior Management Analyst Maintenance | Public Works | (925) 960-8100 | Email |