Data update history
July 30, 2025
Posted financials
Added Form 990 for fiscal year 2024
May 22, 2024
Posted financials
Added Form 990 for fiscal year 2023
January 19, 2024
Posted financials
Added Form 990 for fiscal year 2022
January 18, 2024
Updated personnel
Identified 1 new personnel
August 15, 2023
Posted financials
Added Form 990 for fiscal year 2021
Nonprofit Types
Fraternal societiesChapter / child organizations
Issues
No issues found
Characteristics
State / local levelNo full-time employees
General information
- Address
- 85 River St Suite 2
- Waltham, MA 02453
- Metro area
- Boston-Cambridge-Newton, MA-NH
- County
- Middlesex County, MA
- Website URL
- osiama.org/Â
- Phone
- (617) 489-0196
IRS details
- EIN
- 04-2900144
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1905
- Eligible to receive tax-deductible contributions (Pub 78)
- No
Categorization
- NTEE code, primary
- Z99: Z99
- Parent/child status
- Subordinate organization
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