Data update history
January 8, 2024
Posted financials
Added Form 990PF for fiscal year 2022
November 25, 2023
Posted financials
Added Form 990PF for fiscal year 2021
June 21, 2023
Posted financials
Added Form 990PF for fiscal year 2020
October 7, 2021
Posted financials
Added Form 990PF for fiscal year 2019
Nonprofit Types
Grantmaking organizationsPrivate foundationsPrivate operating foundationsMedia and communications organizationsCharities
Issues
No issues found
Characteristics
Provides grantsPartially liquidatedState / local levelTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- Co VWC 10510 Northup Way 300
- Kirkland, WA 98033
- Metro area
- Seattle-Tacoma-Bellevue, WA
- County
- King County, WA
- Website URL
- riverstyxfoundation.org/
- Phone
- (425) 250-0051
IRS details
- EIN
- 94-3373712
- Fiscal year end
- December
- Taxreturn type
- Form 990-PF
- Year formed
- 2002
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- T20: Private Foundations
- NAICS code, primary
- 813211: Grantmaking Foundations
- Parent/child status
- Independent
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