| Address | Sq. Ft | Location | Contact Phone | Contact Name |
| 1015 First St | n/a | office above Bank of The West | 925-372-8106 | Tim |
| 919 First St | n/a | office above jewelry store | 707-386-7641 | n/a |
| 905C First St | n/a | Commercial Space | 707-745.0924 | Estey Real Estate |
| 905E First St | n/a | Commercial Space | 707-745.0924 | Estey Real Estate |
| 905A First St | n/a | Commercial Space | 707-745.0924 | Estey Real Estate |
| 905 First St | 1400 sq. f.t | above Venticello's | 925-209-5558 | Gust |
| 814 First St. | n/a | 707-557-8050 | Janet | |
| 831 First St. | n/a | Upstairs | 707-745-0924 | Estey RE |
| 757 First St. upstairs | n/a | n/a | 373-8912 | n/a |
| 521 First St | 1350 | upstairs | 746-4880 | Karen Arnold |
| 634A First St. | 900 Sq. Ft | above Piccolo | 707-748-1660 | Marcus |
| 634B First St | 1000 Sq. Ft. | above Piccolo | 707-748-1660 | Marcus |
| 601 First St. Upstairs | n/a | n/a | 745-8800 | Fred |
| 333 First St | n/a | Washington House bldg | 707-252-1400 | George |
| 334 First St | 2250 | ground level | 746-4880 | Karen Arnold |
| 332 First St | n/a | n/a | 925-279-4610 | Ron |
| 334 First St | n/a | n/a | 925-279-4610 | Ron |
| 221 First St | n/a | For sale | 707-745-5000 | Steve |
| 110 East D Ste N | n/a | Treasury of Commons Bldg | 707-332-8301 | Alex |
| 191 East H St | n/a | Powerhouse Bldg | 707-373-7510 | Marian |
| 100 First St | n/a | Tannery Bldg | 925-947-0200 | James |