Skip to main content
Holdings
Nonprofit Profile

Underhill House

Mercer Island, WA · 501(c)(3) · EIN 45-5355810
Active
IRS Status
Active since January 1940
Verify on IRS.gov →
State Registration
WA — Secretary of State
Verify →
990 Filing
No data available
Tax-Exempt Since
1940
Ruling date: January 1940

Mission & Description

Underhill House is a nonprofit organization located in Mercer Island, WA, with a tax-exempt status since 1940. The organization is registered under EIN 455355810. Further details regarding its specific programs or services are not provided.

Official Records

EIN45-5355810
Subsection501(c)(3)
ClassificationPublic Charity
Ruling DateJanuary 1940
Revocation HistoryNone

Officers & Directors

No officer compensation data available.

Claim this profile

We're onboarding nonprofits from our waitlist. Join to be first in line for a verified badge, custom profile page, and a permanent SEO backlink — all free, forever.

Free — no credit card, no commitment

Location

📍 Mercer Island, WA
3714 90TH AVE SE
Mercer Island, WA 98040-3716

State Registration

Washington
Secretary of State
Verify state registration →

Join the waitlist

We're onboarding verified nonprofits now. Join the waitlist and we'll reach out when it's your turn.

We'll never share your info. Unsubscribe anytime.