William & Sandy Heitz Family Foundation
Historical FunderMequon, Wisconsin · EIN 39-1799844 · Private foundation
Half of its grants to organizations were between $2,000 and $18,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | STEPHANIE FLEMING |
|---|---|
| Address | 10800 N HADDONSTONE PLACE, MEQUON WI 53092 |
| Phone | 2623773970 |
| Form and materials | PURPOSE OF ORGANIZATION AND REQUESTAMOUNT REQUESTED |
| Deadlines | NONE |
| Restrictions | NONE |
Copied as filed. Deadlines on a tax return describe the foundation's usual process; they are not confirmation of a current open cycle.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
76% of grants went outside Wisconsin.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Medical College of Wisconsin | Wauwatosa, WI | Cancer research | $50,000 |
| Wounded Warrior Project | Jacksonville, FL | General operating | $25,000 |
| Stephen Siller Tunnel to Towers Fdn | Staten Island, NY | General operating | $25,000 |
| The League Club | Naples, FL | General operating | $18,000 |
| Charles E Kubly Foundation | Mequon, WI | Mental health | $10,000 |
| Iptay Clemson University | Clemson, SC | General operating | $8,000 |
| Shelter for Abused Women | Naples, FL | General operating | $5,000 |
| Project Help Inc | Naples, FL | General operating | $5,000 |
| Tennessee Performing Arts Center | Nashville, TN | General operating | $3,000 |
| Center for Deaf-Blind Persons | West Allis, WI | General operating | $2,000 |
| St Mary Magdalene Catholic Church | Simpsonville, SC | General operating | $2,000 |
| Alpha Chi Omega Foundation | Indianapolis, IN | General operating | $1,034 |
| American Heart Association | Dallas, TX | General operating | $1,029 |
The return also lists 5 grants to individuals ($39,115). We do not publish the names of individual recipients.
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $194,178 | 18 |
| 2024 | $203,756 | 12 |
| 2023 | $192,900 | 19 |
Sources
- IRS Form 990-PF, tax year 2025, filed Jan 26, 2026 - IRS e-file batch, object ID 202630269349100203
- IRS Tax Exempt Organization Search for EIN 39-1799844
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.