Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2026. IRS ruling in Jan 1999.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
71 cents of each dollar spent went to programs.
Form 990 Part IX, line 25. Every line is in By the numbers.
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Who runs it and what they're paid
6 people listed on the 990.
William Grennell’s $44K as Former Ed is at the 31st percentile of top reported officer pay among 2168 $100K–1M human services nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 3 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2021 | FY2020 |
|---|---|---|---|---|---|
| William Grennell | $43,746 | $73,478 | — | — | — |
| Ann Sickon | — | — | $65,625 | — | — |
| Harriet Redman | — | — | — | $27,673 | $27,673 |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Programs and updates
Helps siblings of children with special needs understand, accept, and thrive.
Questions for Wisconsibs INC
Your first name shows with your question. Wisconsibs INC answers here, for everyone.
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Sibshops, summer camps, teen leadership & santa celebration are workshops for kids with brothers and sisters that have special needs. These workshops provide games, activities and special guests.
Adult sibling programs are held for adults who have siblings with disabilities to help them learn about resources for future planning and receive peer support.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2026 990, line by line.
Download 990
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2026 Latest Viewing | $77K | $79K | −$1K | 990 PDF | |
| FY2025 | $270K | $318K | −$48K | $42K | 990 PDF |
| FY2024 | $222K | $397K | −$175K | $90K | 990 PDF |
| FY2023 | $357K | $282K | $75K | $265K | 990 PDF |
| FY2022 | $274K | $176K | $98K | $189K | 990 PDF |
| FY2021 | $165K | $92K | 990 PDF | ||
| FY2020 | $126K | $60K | 990 PDF |
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Schedules filed Part IV
Form 990 e-file (XML) FY2026 from the IRS · Classification, formation year and address from the IRS Business Master File
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