Updated Nov 2, 2026
Private foundations based in Bannockburn, Illinois
6 grantmaking foundations headquartered in Bannockburn, Illinois, holding $61M in assets. Ranked by grants paid in their latest 990-PF; 1 on this page say they accept applications. For foundations ranked by where their grants went, see local funders.
| Foundation | Grants paid | Median grant | Accepts applications | Assets |
|---|---|---|---|---|
| John R Halligan Charitable Fundsince 1962 | $2.8M112 grants · 2025 | $13K | Preselected only | $18M |
| Sheldon L and Pearl R Leibowitz Lew Leibowitz Legacy Foundationsince 2014 | $760K16 grants · 2025 | $38K | Preselected only | $17M |
| Gail G Ellis Foundation Incsince 1996 | $641K123 grants · 2024 | $1,000 | Preselected only | $13M |
| Joan and Norman Chapman Foundationsince 1987 | $555K54 grants · 2024 | $5,000 | Preselected only | $7.6M |
| Jbs Foundationsince 2005 | $430K63 grants · 2025 | $3,600 | Preselected only | $3.7M |
| The@irving & Roberta Lewis Charitable Foundationsince 1997 | $215K11 grants · 2024 | $15K | Yes | $2.3M |
Sources: IRS Business Master File (assets), ProPublica Nonprofit Explorer and IRS 990-PF e-file (grants paid, application policy). "Accepts applications" reflects the foundation's own Part XV checkbox.
Open grant programs in Illinois
All 2| Deadline | Grant | Funder | Award ceiling |
|---|---|---|---|
| Rollingno deadline | Illinois Arts Council Agency — Organizational GrantsStateIllinois Arts Council Agency | Illinois Arts Council Agency | Not listed |
| Rollingno deadline | Illinois Humanities — Humanities GrantsStateIllinois Humanities | Illinois Humanities | Not listed |
Common questions
How many private foundations are based in Bannockburn, Illinois?
Our directory lists 6 private grantmaking foundations in Bannockburn, Illinois with at least $1 million in assets, holding a combined $61M. The data comes from the IRS Exempt Organizations Business Master File and Form 990-PF.
How do I get a grant from a private foundation?
Start with foundations that already fund organizations like yours nearby. Read the grantee list on each profile, check whether the foundation accepts applications (it says so on its 990-PF), and lead with a short letter of inquiry. Many family foundations fund only organizations they already know; an introduction through a shared grantee or board member works better than a cold proposal.
Can you help us approach foundations?
Yes. Our grant writers research foundation prospects, write letters of inquiry, and build a foundation fundraising plan. Request a free consultation.