# 125 Summer Street Corporation

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

- Legal business name: 125 Summer Street Corporation
- Entity type: C corporation
- Original incorporation date: January 11, 1985
- Time in business: 41 years and 9 months
- Jurisdiction count: 1

## All known addresses

- 20 Winthrop Sq, Boston, MA 02110 (listed in Massachusetts)

## Registered states

- [Massachusetts](https://index.baselayer.com/ma/2e5400de2e4d6d89): Domestic registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/2e5400de2e4d6d89)