| 24-hr Emergency/Non-Emergency | | Police | (925) 371-4987 | |
| Abandoned Vehicle Hotline | | Police | (925) 371-4824 | |
| Airport | Monday to Thursday, 8:00 a.m. to 4:30 p.m., Friday 8:00 a.m. to 3:00 p.m. | | (925) 960-8220 | Email |
| Alcala, Jason | City Attorney | City%20Attorney | (925) 960-4150 | Email |
| Animal Control | | Police | (925) 371-4987 | |
| Animal Control | Monday - Saturday, 7:00 a.m. - 4:00 p.m. | | (925) 371-4987 | |
| Baker, Anwan | Library Services Director | Library | (925) 373-5509 | Email |
| Calkins, Jason | Public Works Supervisor - Streets / Signals / Facilities | Public%20Works | (925) 960-8020 | Email |
| Cardwell, Brandon | Innovation & Economic Development Director | Innovation%20%26%20Economic%20Development | (925) 960-4140 | Email |
| Carling, Bob | Councilmember | City%20Council | (925) 960-4018 | Email |
| Chief of Police Office | | Police | (925) 371-4710 | |
| Cilley, Kim | Senior Assistant City Attorney | City%20Attorney | (925) 960-4150 | Email |
| City Attorney's Office | Monday to Friday, 8:00 a.m. to 5:00 p.m. | | (925) 960-4150 | |
| City Clerk's Office | Monday to Friday, 8:00 a.m. to 5:00 p.m. | | (925) 960-4200 | Email |
| City Manager's Office | Monday to Friday, 8:00 a.m. to 5:00 p.m. | | (925) 960-4040 | Email |
| Cole, Herbert | Emergency Manager | City%20Manager | (925) 960-4038 | Email |
| Crime Prevention | | Police | (925) 371-4797 | |
| Criminal Investigations Unit | | Police | (925) 371-4700 | |
| Dispatch Center | | Police | (925) 371-4987 | |
| Doyle, David | Accounting Supervisor | | (925) 960-4300 ext. 4352 | Email |
| Engineering | Monday to Thursday, 9:00 a.m. to 4:00 p.m. | | (925) 960-4500 | Email |
| Environmental Services | Monday to Friday, 8:00 a.m. to 5:00 p.m. | | (925) 960-8015 | Email |
| Erlandson, Judy | Acting Public Works Director | Public%20Works | (925) 960-8015 | Email |
| Finance | Monday to Friday, 8:00 a.m. to 5:00 p.m. | | (925) 960-4300 | Email |
| Fire Department, Non-Emergency Line | | | (925) 454-2361 | |
| Furtado, Ann | Accounting Supervisor | | (925) 960-4301 | Email |
| Gan, Marisa | Management Analyst II | Public%20Works | (925) 960-8023 | Email |
| Gang Tip Hotline | | Police | (925) 371-4790 | |
| Hearing Impaired | | Police | (925) 371-4982 | |
| Hein, Tracy | Disaster Preparedness Manager | Fire | (925) 454-2361 | |
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