Data update history
July 16, 2026
Posted financials
Added Form 990PF for fiscal year 2025
May 31, 2025
Posted financials
Added Form 990PF for fiscal year 2024
July 12, 2024
Posted financials
Added Form 990PF for fiscal year 2023
July 9, 2024
Used new vendors
Identified 1 new vendor, including
November 25, 2023
Posted financials
Added Form 990PF for fiscal year 2021
Nonprofit Types
Grantmaking organizationsPrivate foundationsPrivate non-operating foundationsCharities
Issues
Education
Characteristics
Provides grantsPartially liquidatedState / local levelTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- PO Box 55548
- Seattle, WA 98155
- Metro area
- Seattle-Tacoma-Bellevue, WA
- County
- King County, WA
- Website URL
- maxwell.org/Â
- Phone
- (206) 223-7982
IRS details
- EIN
- 91-6181008
- Fiscal year end
- December
- Taxreturn type
- Form 990-PF
- Year formed
- 1993
- 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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