Data update history
January 25, 2025
Posted financials
Added Form 990 for fiscal year 2023
January 16, 2025
Updated personnel
Identified 3 new personnel
November 25, 2023
Posted financials
Added Form 990 for fiscal year 2021
July 7, 2023
Posted financials
Added Form 990 for fiscal year 2022
Nonprofit Types
Medical research organizationsResearch centersCharities
Issues
Science and technologyHealth
Characteristics
Provides grantsConducts researchOperates internationallyTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- 15 E Putnam Ave Suite 413
- Greenwich, CT 06830
- Metro area
- Bridgeport-Stamford-Norwalk, CT
- County
- Western Connecticut Planning Region, CT
- Website URL
- heffter.org/Â
- Phone
- (212) 238-8786
IRS details
- EIN
- 85-1073501
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 2020
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- H90: Medical Specialty Research
- NAICS code, primary
- 5417: Scientific Research and Development Services
- Parent/child status
- Independent
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