RDK Foundation

Private foundation · Grantmaker Eagan, MN EIN: 39-1524311

RDK Foundation is a private foundation based in Eagan, Minnesota. Its 2025 filing lists one grant of $17,046,000 for general operating support to a recipient identified as “SEE ATTACHED.”

RDK Foundation at a glance

In short: RDK Foundation gave $17.0M across 1 grant in 2025 (avg $17.0M), mostly in Minnesota. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$17,046,000
+37.7% vs 2024
Grants made (2025)
1
+0.0% vs 2024
Average grant
$17,046,000
+37.7% vs 2024
Median grant
$17,046,000
Total assets
$384,058,279
+4.6% vs 2024
Primary geography
Minnesota (100% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026.

How to apply to RDK Foundation

Accepts unsolicited proposals
No
How to Apply

The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations.

Contact

Mailing address: PO Box 64193, Eagan, MN 55164
Phone: (888) 265-7962

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who RDK Foundation funds

How this funder distributes its grants

Grant Size Distribution

50 grants across all recorded years

40<$50K4$50–100K1$100–250K$250–500K1$500K–1M1$1–5M3$5M+

The most common grant size was under $50K: 40 grants of 50 (80%).

Geographic Focus

Where this funder awards grants

The foundation’s 2025 grant dollars were reported entirely in Minnesota. The listed 2021 grants went to organizations in Wisconsin, Maine, and Georgia.

Grant Distribution by State

12states

Share of the 2025 grant dollars on its one itemized grant.

Cities

MilwaukeeSheboyganMadisonMinneapolisAppletonBarabooBoulderChicagoColumbusEaganFountain CityGeneseeJanesvilleKohlerLos AngelesLucasMonroeNew YorkNorthhamptonPenland

How RDK Foundation gives

  • Giving grew 755% from 2022 to 2025. Method
  • In 2025 it paid out 100% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. 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

$0$5M$10M$15M$20M46 grants2021 1 grant2022 1 grant2023 1 grant2024 1 grant2025

From 2021 to 2025, annual grant giving ranged from $1.5M (2021) to $17.0M (2025). In 2025 it made 1 grant totaling $17.0M.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
See Attached Eagan, MNGeneral Operating$17,046,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$384,058,279$39,067,314$23,907,961$17,046,0001$21,119,594$26,302,904$21,120,416
2024$367,071,794$-13,899,532$19,209,302$12,381,7001$17,290,336$5,328,365$19,128,305
2023$399,084,408$-4,148,389$16,833,883$12,055,0001$14,623,584$4,785,543$17,562,525
2022$420,216,239$404,487,215$4,486,582$1,992,8001$3,303,527$6,841,167$16,237,362
2021$25,417,924$3,637,665$1,641,416$1,457,20046—$3,477,666$1,459,117

Under IRS private-foundation payout rules, RDK Foundation reported a distributable amount of $21.1M for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is available in the supplied information. Its reported grants include support for arts and cultural organizations, educational institutions, and land conservation organizations. For example, the John Michael Kohler Arts Center describes its mission as generating creative exchange between artists and the public; the Wisconsin Historical Foundation says it advances the Wisconsin Historical Society’s work of collecting, preserving, and sharing stories; and the Georges River Land Trust describes its mission as conserving the ecosystems and traditional heritage of the Georges River Watershed Region.

Grantmaking

In filing year 2025, the foundation reported one grant totaling $17,046,000. That grant was for general operating support and went to “SEE ATTACHED” in Eagan, Minnesota. The single reported grant was also the smallest, largest, and median grant for that year.

Earlier reported grants include $160,000 to the John Michael Kohler Arts Center, $60,000 to the Wisconsin Historical Foundation, and $50,000 to Edgewood University in 2021. Other 2021 recipients listed include the Georges River Land Trust ($45,000), the Aldo Leopold Foundation ($25,000), Columbus State University ($15,000), Woodland Pattern ($15,000), and the Museum of Wisconsin Art ($15,000).

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Paul J. Tilleman and Susan L. Flader as co-trustees, and U.S. Bank N.A. as trustee.

RDK Foundation's 2025 filing lists 3 officers; 1 of 3 officers listed in 2025 is compensated.

Officers on the 2025 filing

  • US Bank N A

    Trustee

    New on the 2025 filing

    40 hrs/week

    $2.1M (2025)

  • Paul J. Tilleman

    Co-Trustee

    On filings since 2021

    2 hrs/week

    No compensation reported

  • Susan L. Flader

    Co-Trustee

    On filings since 2021

    2 hrs/week

    No compensation reported

Former officers (1)
  • Former: U S Bank NA (2021–2024) — Co-Trustee

Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

US Bank N a — Trustee: $2.1MUS Bank N aTrustee$2.1M

The highest reported compensation on the 2025 filing was $2.1M, to US Bank N a (Trustee).

Frequently asked questions about RDK Foundation

How much does RDK Foundation give each year?

RDK Foundation gave $17.0M across 1 grant in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $12.4M across 1 grant.

How large is RDK Foundation?

RDK Foundation reported $384.1M in total assets on its 2025 IRS Form 990-PF. It paid out $21.1M in qualifying distributions that year, against a required minimum of $21.1M (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does RDK Foundation fund?

No mission statement for the foundation is available in the supplied information. Its reported grants include support for arts and cultural organizations, educational institutions, and land conservation organizations. See mission & focus areas ↑

How do I apply for a grant from RDK Foundation?

The foundation does not accept unsolicited requests for funds and makes contributions only to preselected charitable organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

Where does RDK Foundation make grants?

The foundation’s 2025 grant dollars were reported entirely in Minnesota. The listed 2021 grants went to organizations in Wisconsin, Maine, and Georgia.

What is RDK Foundation's EIN?

RDK Foundation's EIN (Employer Identification Number) is 39-1524311. IRS Form 990 filing data is available on this page for 2021–2025.

Does RDK Foundation accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2021 (received by the IRS November 10, 2021)
  2. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 12, 2023)
  3. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 14, 2024)
  4. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 14, 2025)
  5. Added Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
  6. IRS filings on file for fiscal years 2021–2024

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Cite this profile

Grantable. (2026). RDK Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/rdk-foundation-morg_cba1668d7d9e4c99ad95dc577cfc4000

BibTeX
@misc{grantable_391524311_2026,
  author       = {{Grantable}},
  title        = {{RDK Foundation funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/rdk-foundation-morg_cba1668d7d9e4c99ad95dc577cfc4000},
  note         = {Accessed 2026-10-11. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from RDK Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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