Data update history
August 17, 2024
Updated personnel
Identified 1 new personnel
August 14, 2024
Posted financials
Added Form 990 for fiscal year 2023
August 2, 2023
Posted financials
Added Form 990 for fiscal year 2022
June 14, 2023
Posted financials
Added Form 990 for fiscal year 2021
May 12, 2023
Updated personnel
Identified 3 new personnel
Nonprofit Types
Social advocacy organizationsEnvironmental organizationsCharities
Issues
Land and water conservationEnvironment
Characteristics
MembershipsState / local levelTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- PO Box 496
- Woods Hole, MA 02543
- Metro area
- Barnstable Town, MA
- County
- Barnstable County, MA
- Website URL
- opet.org/Â
- Phone
- (508) 540-7345
IRS details
- EIN
- 04-3278142
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1995
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- C32: Water Resource, Wetlands Conservation and Management
- NAICS code, primary
- 813312: Environment, Conservation, and Wildlife Organizations
- Parent/child status
- Independent
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