Cannabis microbusinesses in Contra Costa County, California
6 companies hold an active California microbusiness licence with premises in Contra Costa County.
ⓘ The 6 companies below are ordered by the earliest issue date among their California licences that were active on September 23, 2026. That date does not prove continuous operation, common ownership, experience, or quality, and it is not a score. No company here has been reviewed against the five criteria; three of those need documents only the supplier can provide.
| # | Company | Earliest active licence | Active licences | Type |
|---|---|---|---|---|
| 1 | Contra Costa Farms LLC | 2019 | 1 | Microbusiness |
| 2 | Fiacre, Inc. | 2021 | 1 | Microbusiness |
| 3 | Isidore Technology Inc | 2021 | 1 | Microbusiness |
| 4 | Kolaboration Concord LLC | 2022 | 1 | Microbusiness |
| 5 | Kolaboration Ventures LLC | 2022 | 1 | Microbusiness |
| 6 | Crane City Nursery LLC | 2023 | 1 | Microbusiness |
ⓘ Reproduced from the California DCC licence search, retrieved September 23, 2026.