Clark Gillies Foundation
The Clark Gillies Foundation is a Long Island–based 501(c)(3) charitable foundation supporting children who are physically, developmentally, or financially challenged. The site describes major healthcare and community grants (including support for pediatric units at Huntington Hospital), donation options, and event fundraising.
Source: Website · Mar 2026
Ideal Applicant
A small-to-midsize Long Island/New York nonprofit serving children (ages roughly 6–17) with medical, developmental, or financial needs or a community youth program with clear local impact.
Good Fit
- • Programs focused on children’s health, pediatric services, disability support, or youth development.
- • Primary operations or demonstrated impact on Long Island or elsewhere in New York State.
- • A request size consistent with recent grants (many awards in the low five-figure range, occasional larger grants).
- • Ability to provide application materials and local references on a rolling timetable.
Geography
Observed giving is heavily concentrated in New York, with about 91% of 2023 dollars staying in-state and a clear Long Island focus despite a few out-of-state grants.
Recipient Variety
In the latest year the foundation funded 21 distinct recipients (up from 12 the prior year), and most 2023 grantees were new, indicating a broad and growing recipient set for the foundation's size.
New Applicants
Direct evidence of openness exists: a public application route is listed, applications are obtainable from the foundation, and 18 new recipients were added in 2023, suggesting unfamiliar applicants can join the portfolio.
Source: Zeffy Agent · Mar 2026
