# 188 Madison Avenue LLC

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

- Legal business name: 188 Madison Avenue LLC
- Entity type: LLC
- Original incorporation date: August 21, 2017
- Time in business: 9 years and 1 month
- Jurisdiction count: 2

## All known addresses

- 505 5th Ave S Ste 900, Seattle, WA 98104 (listed in Washington)
- 600 Mamaroneck Ave Ste 400, Harrison, NY 10528 (listed in New York)

## Registered states

- [New York](https://index.baselayer.com/ny/eb26eaca67788cfd): Foreign registration
- [Washington](https://index.baselayer.com/wa/f742e7ad346492c3): Domestic registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/f742e7ad346492c3)