# 221B Partners LLC

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

- Legal business name: 221B Partners LLC
- Entity type: LLC
- Original incorporation date: July 20, 2010
- Time in business: 16 years and 2 months
- Jurisdiction count: 1

## All known addresses

- 1511 3rd Ave, Seattle, WA 98101 (listed in Washington)

## Registered states

- [Washington](https://index.baselayer.com/wa/ac4c7d250725a330): Domestic registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/ac4c7d250725a330)