Costolo Family Foundation

Restricted Access
Private Foundation
Wilmington, DelawareSmallEIN: 861199543
Conservation GroupsEnvironmental Conservation GroupsWildlife Conservation CentersWildlife Protection Organizations

This organization is a private foundation dedicated to supporting environmental conservation and wildlife protection initiatives. Its mission focuses on funding projects that promote sustainability and the preservation of natural habitats, with particular emphasis on wildlife conservation efforts. The foundation provides grants to various organizations, including those involved in general conservation work and specific projects like the Reteti Elephant Sanctuary. It serves a range of environmental causes, demonstrating a commitment to both local and global ecological issues.

Source: Zeffy Agent · Mar 2026

Ideal Applicant

Established conservation or environmental organizations (national or regional) with demonstrated programmatic impact and existing connections to the foundation’s network or intermediaries.

Good Fit

  • Work focused on environmental conservation or wildlife protection.
  • Track record of large, general-support grants or capacity to absorb unrestricted funding.
  • Existing relationship or introduction to a current or prior grantee or an intermediary.
  • Presence in one of the states previously funded (WY, VA, NY, CO, WA) or national conservation profile.

Geography

Broad

The latest observed grants were distributed across five states, with no in-state concentration, indicating a multi-state/national footprint rather than purely local giving.

Recipient Variety

Moderate

Six distinct grantees were funded in the latest year, mixing large national conservation organizations and smaller groups; three recipients repeated from prior observed years, but dollars were highly concentrated among the top five recipients.

New Applicants

Moderate

Direct evidence shows three new recipients in the latest year, so the funder does add unfamiliar organizations, but filings and the default application note that grants are by preselection only and no public application route is visible, so unsolicited access appears limited.

Source: Zeffy Agent · Mar 2026