# 521 Corporation

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

- Legal business name: 521 Corporation
- Alternative and DBA names: 521
- Entity type: C corporation
- Original incorporation date: December 16, 1983
- Time in business: 42 years and 10 months
- Jurisdiction count: 2

## All known addresses

- 521 8th St SE, Washington, DC 20003 (listed in Maryland)

## Registered states

- [District of Columbia](https://index.baselayer.com/dc/71fc985b96a00b7f): Domestic registration
- [Maryland](https://index.baselayer.com/md/7174ba54734a3263): Foreign registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/71fc985b96a00b7f)