# Duket Architects | Planners Inc.

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

- Legal business name: Duket Architects | Planners Inc.
- Alternative and DBA names: Duket Porter Associates, Inc.; Duket Porter Macpherson Inc.; Seyfang Blanchard Associates Inc.; Seyfang Blanchard Duket Inc.; Seyfang Blanchard Duket Porter Inc.
- Entity type: C corporation
- Original incorporation date: January 8, 1979
- Time in business: 47 years and 9 months
- Jurisdiction count: 1

## Registered states

- [Ohio](https://index.baselayer.com/oh/802060979c6dd94e)

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/802060979c6dd94e)