Winkler Botanical Preserve
Winkler Botanical Preserve is a private foundation, based in Alexandria, VA. IRS filing data is available from 2020 through 2022. In 2022, it awarded 8 grants totaling $16.8M. Net investment income was $892K.
Winkler Botanical Preserve at a glance
In short: Winkler Botanical Preserve gave $16.8M across 8 grants in 2022 (avg $2.1M), mostly in Virginia. Source: 2022 IRS Form 990-PF.
- Annual giving (2022)
- $16,785,616
- Grants made (2022)
- 8
- Average grant
- $2,098,202
- Median grant
- $269,535
- Primary geography
- Virginia (100% of itemized 2022 grant dollars)
- Latest 990 filing
- Form 990-PF, 2022 View filing
Data from IRS Form 990-PF, 2022; updated September 2026.
Who Winkler Botanical Preserve funds
How this funder distributes its grants
Top Recipients
Top 4 recipients in 2022
The largest 2022 recipient was Nova Parks ($14.9M across 2 grants). Together the top 4 received $16.8M.
Grant Size Distribution
8 grants across all recorded years
The most common grant size was in the $100–250K range: 4 grants of 8 (50%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2022 grant dollars across all 8 itemized grants.
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
In 2022 it made 8 grants totaling $16.8M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Nova Parks Fairfax, VA | Donated on Termination | $11,887,912 |
| Nova Parks Leesburg, VA | Cash Donated on Termination | $3,019,452 |
| City of Alexandria Public Schools Alexandria, VA | Donation on termination for public school programs at the preserve | $1,000,000 |
| Northern Va Community Foundation Fairfax, VA | Donated on Termination | $290,888 |
| Northern Va Community Foundation Fairfax, VA | Donated on Termination | $248,181 |
| Northern Va Community Foundation Fairfax, VA | Donated on Termination | $119,625 |
| Northern Va Community Foundation Fairfax, VA | Donated on Termination | $119,558 |
| Alexandria West End Schools Alexandria, VA | Donation on Termination for School Lunches | $100,000 |
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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 |
|---|---|---|---|---|---|---|---|
| 2022 | — | $924,989 | $18,279,965 | $16,785,616 | 8 | $18,108,149 | $892,022 |
| 2021 | $17,239,306 | $623,316 | $507,383 | — | — | $271,240 | $585,563 |
| 2020 | $17,429,070 | $340,504 | $519,817 | — | — | — | $304,447 |
Leadership & Key People
Officers and directors from IRS filings
Winkler Botanical Preserve is led by Randal B. Kell, President on every filing since 2020; none of the 5 officers listed in 2022 report compensation.
Officers on the 2022 filing
Randal B. Kell
President
On filings since 2020
0.5 hrs/week
No compensation reported
Louise Garvey
Foundation Manager
On filings since 2020
40 hrs/week
$63K (2020) → $0 (2022)
Carolyn W. Thomas
Vice President
On filings since 2020
0.5 hrs/week
No compensation reported
Kathleen W. Wennesland
Vice President
On filings since 2020
0.5 hrs/week
No compensation reported
Margaret Hecht
Secretary
On filings since 2020
0.5 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2020–2022. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2021 IRS filing
The highest reported compensation on the 2021 filing was $63K, to Louise Garvey (Foundation Manager).
Frequently asked questions about Winkler Botanical Preserve
How much does Winkler Botanical Preserve give each year?
Winkler Botanical Preserve gave $16.8M across 8 grants in 2022, according to its 2022 IRS Form 990-PF.
What is Winkler Botanical Preserve's typical grant size?
Winkler Botanical Preserve's median grant in 2022 was $269,535, and its average grant was $2,098,202, across 8 grants on its 2022 IRS Form 990-PF.
Where does Winkler Botanical Preserve give grants?
Winkler Botanical Preserve gives mostly in Virginia: 100% of the grant dollars itemized on its 2022 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Fairfax, VA (5 grants) and Alexandria, VA (2 grants).
Does Winkler Botanical Preserve give general operating support?
Not in 2022: none of the 8 grants with a stated purpose on Winkler Botanical Preserve's 2022 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Donated on Termination" (5 grants).
Who are Winkler Botanical Preserve's largest grantees?
Winkler Botanical Preserve's largest 2022 grantees include Nova Parks ($14,907,364 across 2 grants), City of Alexandria Public Schools ($1,000,000) and Northern Va Community Foundation ($778,252 across 4 grants), according to its 2022 IRS Form 990-PF. Together they received 99% of its itemized 2022 grant dollars.
What is Winkler Botanical Preserve's EIN?
Winkler Botanical Preserve's EIN (Employer Identification Number) is 51-0243204. IRS Form 990 filing data is available on this page for 2020–2022.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2022
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