# Addison & Leyen Inc.

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

- Legal business name: Addison & Leyen Inc.
- Entity type: C corporation
- Original incorporation date: October 1, 1976
- Time in business: 50 years
- Jurisdiction count: 4

## All known addresses

- 722 PO Box, Williston, ND 58802 (listed in North Dakota, Montana, South Dakota)

## Registered states

- [Montana](https://index.baselayer.com/mt/0233d8d4c071f381): Foreign registration
- [Montana](https://index.baselayer.com/mt/06a83b23b66e3ed0): Foreign registration
- [North Dakota](https://index.baselayer.com/nd/15fa35b706ad63f4): Domestic registration
- [South Dakota](https://index.baselayer.com/sd/4cf8a661a2dd6bc4): Foreign registration
- [Wyoming](https://index.baselayer.com/wy/6dec02551ad2ac8d): Foreign registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/15fa35b706ad63f4)