Data update history
January 18, 2024
Posted financials
Added Form 990PF for fiscal year 2023
January 13, 2024
Updated personnel
Identified 5 new personnel
November 25, 2023
Posted financials
Added Form 990PF for fiscal year 2022
November 25, 2023
Posted financials
Added Form 990PF for fiscal year 2021
October 22, 2021
Posted financials
Added Form 990PF for fiscal year 2020
Nonprofit Types
Grantmaking organizationsPrivate foundationsPrivate non-operating foundationsCharities
Issues
HealthMental healthHuman servicesChildren
Characteristics
Provides grantsState / local levelTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- 29 Crafts St 260
- Newton, MA 02458
- Metro area
- Boston-Cambridge-Newton, MA-NH
- County
- Middlesex County, MA
- Website URL
- mainstayliving.org/
- Phone
- (617) 789-4500
IRS details
- EIN
- 22-3098234
- Fiscal year end
- June
- Taxreturn type
- Form 990-PF
- Year formed
- 1991
- 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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