# ADD Inc Architecture + Design

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

- Legal business name: ADD Inc Architecture + Design
- Alternative and DBA names: Add Inc Architecture Interiors Planning; ADD Inc.
- Entity type: Professional corporation
- Original incorporation date: December 22, 1986
- Time in business: 39 years and 9 months
- Jurisdiction count: 3

## All known addresses

- 311 Summer St, Boston, MA 02210 (listed in Rhode Island, Connecticut)

## Registered states

- [Connecticut](https://index.baselayer.com/ct/8139972361e0608f): Foreign registration
- [Nevada](https://index.baselayer.com/nv/0052a31c6270442d): Foreign registration, as Add Inc Architecture Interiors Planning
- [Rhode Island](https://index.baselayer.com/ri/7f334ccae37417ef): Domestic registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/7f334ccae37417ef)