# 12-B Management Company L.L.C.

Business profile: public business information with links to supporting state records. Data as of October 16, 2026.

- Legal business name: 12-B Management Company L.L.C.
- Entity type: LLC
- Original incorporation date: June 19, 2008
- Time in business: 18 years and 3 months
- Jurisdiction count: 3

## All known addresses

- 101 S Ellsworth Ave Ste 300, San Mateo, CA 94401 (listed in California)

## Registered states

- [Arizona](https://index.baselayer.com/az/bbc0b9f2a16935ef): Foreign registration
- [California](https://index.baselayer.com/ca/03b34868dc7f2779): Foreign registration
- [Delaware](https://index.baselayer.com/de/f4b40b37eedea7c7)

Source: public state registration records. Missing values are not a negative finding.

Cite as: Baselayer Business Index (https://index.baselayer.com/business/f4b40b37eedea7c7)