May Arboretum Society
May Arboretum Society is a private foundation focused on Environment & Animals, based in Reno, NV. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $6.2M in total assets. In 2025, it awarded 2 grants totaling $181K. Net investment income was $306K.
May Arboretum Society at a glance
In short: May Arboretum Society gave $181K across 2 grants in 2025 (avg $91K), mostly in Nevada. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $181,364
- -17.7% vs 2024
- Grants made (2025)
- 2
- +0.0% vs 2024
- Average grant
- $90,682
- -17.7% vs 2024
- Median grant
- $90,682
- Total assets
- $6,161,517
- +0.8% vs 2024
- Primary geography
- Nevada (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
Who May Arboretum Society funds
How this funder distributes its grants
Top Recipients
Top recipient in 2025
The largest 2025 recipient was May Arboretum Botanical Garden ($177K).
Grant Size Distribution
8 grants across all recorded years
The most common grant size was in the $100–250K range: 5 grants of 8 (63%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 2 itemized grants.
States
Cities
How May Arboretum Society gives
- Giving held roughly steady from 2022 to 2025 (+1%). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $170K (2023) to $220K (2024). In 2025 it made 2 grants totaling $181K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| May Arboretum Botanical Garden Reno, NV | Maintain Park | $176,973 |
| Various Reno, NV | Support Community | $4,391 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income |
|---|---|---|---|---|---|---|---|
| 2025 | $6,161,517 | $625,756 | $563,057 | $181,364 | 2 | $181,364 | $306,166 |
| 2024 | $6,114,473 | $361,123 | $488,860 | $220,328 | 2 | $220,328 | $215,116 |
| 2023 | $6,226,886 | $107,443 | $354,324 | $170,146 | 2 | $170,146 | $139,932 |
| 2022 | $6,409,637 | $110,500 | $310,052 | $178,801 | 1 | $178,801 | $194,233 |
| 2021 | $6,694,662 | $624,055 | $273,567 | $172,060 | 1 | $172,060 | $474,361 |
| 2020 | $8,241,128 | $2,341,272 | $209,983 | — | — | — | $2,312,401 |
Leadership & Key People
Officers and directors from IRS filings
May Arboretum Society is led by Frances Munoz, Executive Director since 2023 (on filings since 2020); none of the 9 officers listed in 2025 report compensation.
Officers on the 2025 filing
Frances Munoz
Executive Director
President → Executive Director, 2023
On filings since 2020
5 hrs/week
$19K (2024) → $0 (2025)
Laurel Vickers
President
On filings since 2023
5 hrs/week
No compensation reported
Carla Mischel
Director
Membership → Director, 2024
On filings since 2023
5 hrs/week
No compensation reported
Geoffrey Faries
Director
On filings since 2024
5 hrs/week
No compensation reported
Leanne Eberle
Director
On filings since 2024
5 hrs/week
No compensation reported
Michael Robinson
Director
On filings since 2024
5 hrs/week
No compensation reported
Rod Dimmitt
Treasurer
Director → Interim Treasurer, 2024
Interim Treasurer → Treasurer, 2025
On filings since 2021
5 hrs/week
No compensation reported
Liz Morrow
Vice President
Secretary → Vice President, 2025
On filings since 2023
5 hrs/week
No compensation reported
Diane Machen
Secretary
New on the 2025 filing
5 hrs/week
No compensation reported
Former officers (9)
- Former: Monica Orton (2024) — Director
- Former: Debbie Bentley (2022–2023) — Treasurer
- Former: Shannon Speak (2020–2022) — Vice President
- Former: Gwen Bourne (2020–2021) — Treasurer
- Former: Amber Hilberg (2021) — Secretary
- Former: Anna Vermillion Hoss (2020) — Vice President
- Former: Catherine Allin Tollstrup (2020) — Director
- Former: Chad Morris (2020) — Director
- Former: Lane Johnsom (2020) — Director
Data from IRS Form 990 filings, 2020–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $19K, to Frances Munoz (Executive Director).
Frequently asked questions about May Arboretum Society
How much does May Arboretum Society give each year?
May Arboretum Society gave $181K across 2 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $220K across 2 grants.
How large is May Arboretum Society?
May Arboretum Society reported $6.2M in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $626K.
What is May Arboretum Society?
May Arboretum Society is a private foundation focused on Environment & Animals, based in Reno, NV. It holds $6.2M in total assets as of 2025.
Where does May Arboretum Society operate?
May Arboretum Society has awarded grants in Nevada.
What is May Arboretum Society's EIN?
May Arboretum Society's EIN (Employer Identification Number) is 88-0205838. IRS Form 990 filing data is available on this page for 2020–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(6)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 15, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS November 15, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS November 15, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS November 15, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS November 17, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 15, 2026)
Explore Open Grants
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