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Costolo Family Foundation

Wilmington, DE EIN 86-1199543 Philanthropy & GrantmakingT20 501C3 PRIVATE FOUNDATION
$1.1M
Revenue
6
Filings
$1.6M
Total Grants
22
Grant Records
Latest Financial Summary
Fiscal Year Revenue Expenses Net Assets Contributions
FY 2025 $1.1M $714K $10.7M $53K
Full Financial History
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Key Officers
L
Lorin Costolo
Dir, Pres
R
Richard Costolo
Dir, Sec, Treas
R
Rose Costolo
Dir
Executive Compensation
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Top Grant Recipients (Teaser)
GRAND TETON NATIONAL PARK FOUNDATION $150K
CONSERVATION INTERNATIONAL FOUNDATION $100K
PACIFIC WILD ALLIANCE $100K
22 total grants · $1.6M total giving
Complete Grants Database
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Filing History
990PF
FY 2025
Period ended 2025-12-31
IRS990PF
FY 2024
IRS990PF
FY 2023
990PF
FY 2022
990PF
FY 2021
Period ended 2021-12-31
990PF
FY 2020
Period ended 2020-12-31
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