Data update history
July 21, 2026
Posted financials
Added Form 990EZ for fiscal year 2025
June 23, 2026
Updated personnel
Identified 7 new personnel
June 21, 2026
Used new vendors
Identified 1 new vendor, including
January 12, 2025
Posted financials
Added Form 990EZ for fiscal year 2024
Nonprofit Types
Grantmaking organizationsSchoolsEducational service providersCharities
Issues
Education
Characteristics
Legally formed as corporationPartially liquidatedFundraising eventsPeer-to-peer fundraisingState / local levelFundraising races, competitions, and tournamentsTax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- 3613 S Hudson Ave
- Tulsa, OK 74135
- Metro area
- Tulsa, OK
- County
- Tulsa County, OK
- Website URL
- hzisfoundation.org/
- Phone
- (918) 746-9180
IRS details
- EIN
- 20-5128549
- Fiscal year end
- June
- Taxreturn type
- Form 990-EZ
- Year formed
- 2008
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- B90: Educational Services
- NAICS code, primary
- 813211: Grantmaking Foundations
- Parent/child status
- Independent
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