Before you apply to Costolo Family Foundation
Who to contact, what to include, deadlines, typical grant size and geographic focus are available with membership.
Private Foundation
Costolo Family Foundation
Based in Wilmington, DE, Costolo Family Foundation operates as a Private Foundation. The organization reported $1.1M in revenue, $714K in expenses, $10.7M in total assets for fiscal year 2025. Imperigo tracks 22 reported grants from this foundation totaling approximately $1.6M.
EIN: 861199543
Wilmington, DE
Private Grantmaking Foundations
NTEE: T20
Latest filing: 2025
Total Revenue$1.1M
Total Expenses$714K
Total Assets$10.7M
Grants Given22
Grant Total$1.6M
Filing Years2020–2025
Sample Grants Given
GRAND TETON NATIONAL PARK FOUNDATION
General & Unrestricted
$150,000
PACIFIC WILD ALLIANCE
General & Unrestricted
$100,000
CONSERVATION INTERNATIONAL FOUNDATION
General & Unrestricted
$100,000
ELEPHANT HAVENS WILDLIFE FOUNDATION INC
General & Unrestricted
$100,000
THE NATURE CONSERVANCY
General & Unrestricted
$100,000
Showing up to 5 of 22 total records — full history available with membership.
Officers & Directors
Dir, Pres
Lorin Costolo
Dir, Sec, Treas
Richard Costolo
Dir
Rose Costolo
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $1.1M | $714K | $10.7M |
| 2024 | $778K | $505K | $10.3M |
| 2023 | $1.6M | $358K | $10.0M |
| 2022 | $-3K | $329K | $8.7M |
| 2020 | — | — | — |
Between 2022 and 2025, reported annual revenue moved from $-3K to $1.1M, with total assets most recently reported at $10.7M.
Interactive year-over-year charts and full filing details available with membership.
Grant Geography
Grants from this foundation were reported to recipients in CO, MA, NY, TX, VA, WA, and 1 other state.
COMANYTXVAWAWY
Full geographic grant map with state-by-state breakdown available with membership.