Sixsibs Foundation Inc
Historical FunderMilwaukee, Wisconsin · EIN 99-0972777 · Private foundation
Half of its grants to organizations were between $1,000 and $10,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2024):
| Contact | JAMES B WIGDALE III |
|---|---|
| Address | 195 S RITE HITE WAY, MILWAUKEE WI 53204 |
| Phone | 4143552600 |
| Form and materials | NO PARTICULAR FORM. APPLICATIONS SHOULD BE SUBMITTED IN WRITING TO RECEIVE CONSIDERATION. |
| Deadlines | NONE |
| Restrictions | GRANTS ARE MADE TO ORGANIZATIONS, NOT INDIVIDUALS. PRESENT PLANS PRECLUDE EXTENSIVE CONSIDERATION OF UNSOLICITED REQUESTS. |
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
23% of grants went outside Wisconsin.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Mmac Community Support Foundation | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $150,000 |
| Wisconsin Institute for Law & Liberty | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $148,272 |
| Versiti Blood Research Institute Foundation | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $128,672 |
| Florentine Opera | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $113,850 |
| Junior Achievement of Wisconsin Inc | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $103,100 |
| Milwaukee Symphony Orchestra | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $45,750 |
| Milwaukee World Festival Inc | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $36,702 |
| Medical College of Wisconsin | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $25,500 |
| Milwaukee Public Museum | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $25,000 |
| Wisconsin Breast Cancer Showhouse | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $25,000 |
| Uwm Foundation | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $19,500 |
| Wisconsin Women's Business Initiative Corporation | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $19,500 |
| Penfield Children's Center | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $15,000 |
| University School of Milwaukee | River Hills, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $15,000 |
| Boys & Girls Club (Milwaukee) | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| Door County YMCA | Sturgeon Bay, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| Fox Point Lutheran Church | Fox Point, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| Roger's Memorial Foundation | Oconomowoc, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| St Marcus School | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| The Adelson School | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| The Ridges Sanctuary | Baileys Harbor, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| UMC Foundation Inc | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| University of Chicago | Chicago, IL | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| All-In-Milwaukee | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $10,000 |
| Badger Institute Inc | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $9,850 |
| Make-A-Wish Southern Nevada | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $7,500 |
| Milwaukee Public Libraryfoundation | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $7,000 |
| After Breast Cancer Diagnosis Inc (Abcd Inc) | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $6,000 |
| Children's Wisconsin Foundation | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $6,000 |
| Alzheimer's Association | Minnetonka, MN | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Charles E Kubly Foundation | Mequon, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Froedtert & Medical College of Wis Cancer Ctr | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Ronald Mcdonald House of Greater Las Vegas | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Sue Baldwin Fund | Egg Harbor, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Three Square | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| War Memorial Center | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Interlochen Center for the Arts | Interlochen, MI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Milwaukee Area Technical College | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| Walkers Point Youth and Family Center | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $5,000 |
| America Scores - Milwaukee | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $4,000 |
| Safe & Sound | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $3,500 |
| Gigi's Playhouse Las Vegas | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,500 |
| Junior League of Las Vegas | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,500 |
| Milwaukee Ballet | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,500 |
| The Mob Museum | Las Vegas, NV | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,500 |
| Feeding America Eastern Wisconsin | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| The Gathering | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Green Lake Conservatory | Green Lake, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Hunger Task Force | West Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Institute for Justice - Arlington Va | Arlington, VA | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Kewaskum Remembers 911 | Kewaskum, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Leukemia & Lymphoma Society of Wisconsin | Detroit, MI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Milwaukee Country Club Scholars Foundation | River Hills, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Warriors & Quiet Waters Foundation | Bozeman, MT | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Running Rebels Community Organization | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $2,000 |
| Blue Lotus Farm & Retreat Center | West Bend, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $1,000 |
| Harvard Business School Club of Wi | Brookfield, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $1,000 |
| Heart Mountain Wyoming Fund | Powell, WY | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $1,000 |
| Independence First (Milw Wi) | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $1,000 |
| Meta House | Milwaukee, WI | The sixsibs foundation makes contributions for the general charitable activities of the recipients listed. the foundation has not… | $1,000 |
Showing the 60 largest of 77 grants to organizations.
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $1,112,296 | 77 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 12, 2025 - IRS e-file batch, object ID 202503169349102600
- IRS Tax Exempt Organization Search for EIN 99-0972777
- Profile updated Nov 4, 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.