Nion Robert Thieriot Foundation
Preselected recipients only
Nion Robert Thieriot Foundation is a private foundation in Elk Mountain, Wyoming. In tax year 2025 it gave $862,000 in 8 grants; the typical grant was $90,000 and the largest $252,000. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$862,000
- Number of grants8
- Typical grant$90,000
- Largest grant$252,000
- Assets$17.7 million
- New grantees0%
Giving in 2025 was up from $725,000 the year before.
0% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $610,000 | 8 | $13.7 million |
| 2024 | $725,000 | 8 | $15.9 million |
| 2025 | $862,000 | 8 | $17.7 million |
How to apply
Nion Robert Thieriot Foundation says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
What Nion Robert Thieriot Foundation funds
Where it gives
Its grants went to recipients in 2 states, the most to Massachusetts.
| State | Grants | Amount |
|---|---|---|
| Massachusetts | 5 | $677,000 |
| California | 3 | $185,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Greenagers | Donation | $252,000 |
| Berkshire Natural Resources Council | Donation | $175,000 |
| New Marlborough Land Trust | Donation | $150,000 |
| Sonoma Land Trust | Donation | $130,000 |
| Massachusetts SPCA | Donation | $50,000 |
| Monterey Preservation Land Trust | Donation | $50,000 |
| The Nature Conservancy | Donation | $50,000 |
| Sturgeon's Mill Restoration Project | Donation | $5,000 |
Officers and trustees
- Peter E Thieriot
- Alice Richmond
Questions people ask
Does Nion Robert Thieriot Foundation accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does Nion Robert Thieriot Foundation give?
$862,000 in tax year 2025, across 8 grants, with a typical grant of $90,000.
Who runs Nion Robert Thieriot Foundation?
Its 2025 filing lists Peter E Thieriot (Trustee) and Alice Richmond (Trustee).
What does Nion Robert Thieriot Foundation fund?
Based on its grants, mainly environment and conservation.