B a Mason Trust
Historical FunderChippewa Falls, Wisconsin · EIN 39-6075816 · Private foundation
Half of its grants to organizations were between $50,000 and $250,000.
How to apply
The foundation filed the following application information (Form 990-PF Part XV, tax year 2025):
| Contact | LORI MUELLER |
|---|---|
| Address | 1250 FIRST AVENUE, CHIPPEWA FALLS WI 54729 |
| Phone | 7157231871 |
| Form and materials | LETTER |
| Deadlines | NONE |
| Restrictions | GEOGRAPHICAL LOCATION OF 25 MILE RADIUS OF CHIPPEWA COUNTY. NORMALLY NOT FOR DONEE "OPERATIONAL" EXPENSES. |
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
0% of grants went outside Wisconsin.
Grants paid in tax year 2025
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Chippewa Valley Health Cooperative | Chippewa Falls, WI | Charitable | $250,000 |
| Veritas Classical Academy | Chippewa Falls, WI | Charitable | $50,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2025 | $300,000 | 2 |
| 2024 | $265,000 | 6 |
| 2023 | $145,000 | 4 |
Sources
- IRS Form 990-PF, tax year 2025, filed Mar 11, 2026 - IRS e-file batch, object ID 202630709349100818
- IRS Tax Exempt Organization Search for EIN 39-6075816
- Profile updated Nov 6, 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.