Data / Nonprofits / Arizona / Fountain HLS / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Fountain HLS, AZ: 14 registered with the IRS
14 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Fountain HLS, AZ, 14 of them 501(c)(3) charities; the 3 that report revenue took in $9.3 million. The largest by revenue: International Dark Sky Discovery Center Inc ($9.1 million), Fountain Hills Community Foundation ($148,238), Four Peaks Rotary Foundation ($83,920).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| International Dark Sky Discovery Center Inc | 501(c)(3) | 2019 | $9.1 million | $28 million | 2025-12 |
| Fountain Hills Community Foundation | 501(c)(3) | 2021 | $148,238 | $483,400 | 2024-12 |
| Four Peaks Rotary Foundation | 501(c)(3) | 2005 | $83,920 | $85,065 | 2025-06 |
| Adair Foundation Inc | 501(c)(3) | 2016 | $333,794 | 2025-12 | |
| Johnnie and Shirley Johnson Family Foundation | 501(c)(3) | 2014 | $2.1 million | 2025-12 | |
| Kenneth A Spinato Foundation Inc | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| National Black McDonalds Franchisees Foundation | 501(c)(3) | 2013 | $61,040 | 2025-12 | |
| Neudorfer Foundation | 501(c)(3) | 1995 | $621,533 | 2025-12 | |
| Our Firm Foundation | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Reigning Classic | 501(c)(3) | 2026 | |||
| Richard F Barker Foundation Inc | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Terry J & Susan K Hanson Foundation | 501(c)(3) | 2015 | $2.4 million | 2025-12 | |
| Updraft Foundation | 501(c)(3) | 2022 | $354,260 | 2025-12 | |
| VCJ Family Foundation | 501(c)(3) | 1998 | $11.7 million | 2025-12 |
Other causes in Fountain HLS, AZ
- Religion-related 18
- Human services 14
- Recreation and sports 10
- Education 9
- Arts, culture and humanities 7
- Public and societal benefit 6
- Animal-related 6
- Youth development 4
- Mental health and crisis intervention 3
- Community improvement and capacity building 3
Every nonprofit in Fountain HLS, AZ · Philanthropy, voluntarism and grantmaking foundations nonprofits across the state · Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.