Fiscal year ending 2024. Filed on October 30, 2025.
Foundation Source 501 Silverside Rd
Wilmington, Delaware 19809
Costolo Family Foundation (EIN: 86-1199543) has filed an IRS Form 990 since fiscal year 2020. In its fiscal year 2024 IRS Form 990 filing, Costolo Family Foundation, a 501(c)(3) charitable organization, reported compensation for 3 employees. Among the employees shown here, the average compensation is $0.
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Employee compensation
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