Robert & Heather Grottke Foundation
Robert & Heather Grottke Foundation is a private foundation, based in Naples, FL. IRS filing data is available from 2020 through 2025. As of 2025, the organization holds $112K in total assets. In 2025, it awarded 8 grants totaling $52K.
Robert & Heather Grottke Foundation at a glance
In short: Robert & Heather Grottke Foundation gave $52K across 8 grants in 2025 (avg $7K), top state Illinois. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $52,115
- +15.8% vs 2024
- Grants made (2025)
- 8
- +100.0% vs 2024
- Average grant
- $6,514
- -42.1% vs 2024
- Median grant
- $5,000
- Total assets
- $111,568
- -16.8% vs 2024
- Primary geography
- Illinois (39% 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 Robert & Heather Grottke Foundation funds
How this funder distributes its grants
Top Recipients
Top 8 recipients in 2025
The largest 2025 recipient was Nathaniels Hope ($15K). Together the top 8 received $52K.
Grant Size Distribution
28 grants across all recorded years
The most common grant size was under $50K: 28 grants of 28 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 8 itemized grants.
Cities
How Robert & Heather Grottke Foundation gives
- Giving grew 421% from 2022 to 2025. Method
- In 2023 it paid out well above its IRS minimum distribution (the 5% rule). 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 2020 to 2025, annual grant giving ranged from $4K (2021) to $52K (2025). In 2025 it made 8 grants totaling $52K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Nathaniels Hope Orlando, FL | General operations | $15,000 |
| St John Lutheran Lombard, IL | General operations | $15,000 |
| St Paul Lutheran Wethersfield, CT | General operations | $10,000 |
| Cornerstone Counseling Ctr Chicago Chicago, IL | General operations | $5,000 |
| Dakota Boys Ranch Minot, ND | General operations | $5,000 |
| International Childrens Fund Neenah, WI | General Operations | $1,500 |
| Lambs Farm Libertyville, IL | General operations | $500 |
| St Jude Memphis, TN | General operations | $115 |
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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 | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $111,568 | $1,274 | $52,266 | $52,115 | 8 | — | — | $895 |
| 2024 | $134,098 | $2,019 | $48,000 | $45,000 | 4 | $60 | — | — |
| 2023 | $130,000 | $4,500 | $35,000 | $30,000 | 3 | $200,000 | — | $10,000 |
| 2022 | $126,119 | $3,363 | $11,679 | $10,000 | 8 | $221,427 | — | — |
| 2021 | — | $4,349 | $3,546 | $3,546 | 5 | $257,661 | $4,349 | $6,665 |
| 2020 | — | $-10,722 | $10,570 | $10,570 | 10 | — | — | $8,631 |
Under IRS private-foundation payout rules, Robert & Heather Grottke Foundation reported a distributable amount of $895 for 2025 — the minimum it must pay out in qualifying distributions.
Leadership & Key People
Officers and directors from IRS filings
Robert & Heather Grottke Foundation is led by Gary Grottke, President on every filing since 2024; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Gary Grottke
President
On filings since 2024
2 hrs/week
No compensation reported
Hollis Bourne
Vice President & Secretary
On filings since 2024
0.3 hrs/week
No compensation reported
Thomas Grottke
Vice President
On filings since 2024
0.3 hrs/week
No compensation reported
Former officers (1)
- Former: Robert Grottke (2020–2023) — Manager
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.
Frequently asked questions about Robert & Heather Grottke Foundation
How much does Robert & Heather Grottke Foundation give each year?
Robert & Heather Grottke Foundation gave $52K across 8 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $45K across 4 grants.
What is Robert & Heather Grottke Foundation's typical grant size?
Robert & Heather Grottke Foundation's median grant in 2025 was $5,000, and its average grant was $6,514, across 8 grants on its 2025 IRS Form 990-PF.
Where does Robert & Heather Grottke Foundation give grants?
Robert & Heather Grottke Foundation's top state is Illinois, with 39% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Florida (29%) and Connecticut (19%).
Does Robert & Heather Grottke Foundation give general operating support?
Yes: 100% of Robert & Heather Grottke Foundation's 2025 grants with a stated purpose (8 of 8) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Robert & Heather Grottke Foundation's largest grantees?
Robert & Heather Grottke Foundation's largest 2025 grantees include Nathaniels Hope ($15,000), St John Lutheran ($15,000) and St Paul Lutheran ($10,000), according to its 2025 IRS Form 990-PF. Together they received 77% of its itemized 2025 grant dollars.
How large is Robert & Heather Grottke Foundation?
Robert & Heather Grottke Foundation reported $112K in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $1K.
How much is Robert & Heather Grottke Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2025, Robert & Heather Grottke Foundation reported a distributable amount of $895 on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Robert & Heather Grottke Foundation's EIN?
Robert & Heather Grottke Foundation's EIN (Employer Identification Number) is 36-4117899. 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
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2020 (received by the IRS January 29, 2023)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS January 29, 2023)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS October 12, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS October 9, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS October 14, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS April 23, 2026)
- IRS filings on file for fiscal years 2020–2025
Live grants for the work Robert & Heather Grottke Foundation funds
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