Data update history
January 18, 2024
Posted financials
Added Form 990 for fiscal year 2022
January 10, 2024
Updated personnel
Identified 4 new personnel
July 14, 2023
Posted financials
Added Form 990 for fiscal year 2021
July 4, 2023
Updated personnel
Identified 3 new personnel
Nonprofit Types
Arts, culture, and humanities nonprofitsMuseumsCharities
Issues
EducationArts, cultural, and humanitiesHistory
Characteristics
Fundraising eventsState / local levelReceives government fundingEndowed supportTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- 500 Greenbank Rd
- Wilmington, DE 19808
- Metro area
- Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
- County
- New Castle County, DE
- Website URL
- greenbankmill.comÂ
- Phone
- (302) 999-9001
IRS details
- EIN
- 51-0305673
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1987
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- A54: History Museums
- NAICS code, primary
- 7121: Museums, Historical Sites, and Similar Institutions
- Parent/child status
- Independent
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