The Wisconsin State Capitol

Form 990-PFTax year 2025EIN 20-1842693

Lannon Stone Foundation Inc

A private foundation in Sussex, WI. Its return for tax year 2025 lists 21 grants and $304,568 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests. It still lists the details below.

Contact
Lannon Stone Foundation Inc
N52 W23096 Lisbon Road
Sussex, WI 53089
(262) 251-1520
Form and materials
N/A
Deadlines
None
Restrictions
None

Assets and giving by year

6 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $304,568

    Grants listed
    21
    Assets, end of year
    $4,252,104
  • Tax year 2024

    $797,696

    Grants listed
    27
    Assets, end of year
    $4,321,583
  • Tax year 2023

    $2,463,600

    Grants listed
    21
    Assets, end of year
    $4,872,658
  • Tax year 2022

    $256,840

    Grants listed
    19
    Assets, end of year
    $6,212,885
  • Tax year 2021

    $418,800

    Grants listed
    19
    Assets, end of year
    $5,667,363
  • Tax year 2020

    $259,844

    Grants listed
    23
    Assets, end of year
    $4,487,475

Grants paid in 2025

21 grants, largest first

As listed on the return.

  1. Bridge BuildersMilwaukee, WI

    Donation

    $100,000
  2. St Augustine Preparatory Academy IncMilwaukee, WI

    Gala paddle

    $35,500
  3. RECLAIM13Lombard, IL

    Donation

    $25,000
  4. The Women's Center of WaukeshaWaukesha, WI

    Donation

    $20,000
  5. Great Lakes Adult and Teen ChallengeMilwaukee, WI

    Donation

    $15,750
  6. Pyramax Bank 4 Ball Charity Tournament IncGrafton, WI

    Pyramax bank four-ball golf challenge 2025 donation - for autism

    $15,000
  7. LifecampusaDelafield, WI

    A half week of life camp

    $12,500
  8. Blue Lotus Farm & Retreat CenterWest Bend, WI

    Lannon stone week sponsorship

    $10,000
  9. Notre Dame School of MilwaukeeWest Milwaukee, WI

    Grant award

    $10,000
  10. Riveredge Nature Center IncSaukville, WI

    Presenting sponsorship for sturgeon fest 2025

    $10,000
  11. Soles for JesusMilwaukee, WI

    Donation

    $10,000
  12. Wisconsin Institute for Law & LibertyMilwaukee, WI

    Grant award

    $10,000
  13. Village of SussexSussex, WI

    Egg drop, concert on the plaza, touch a truck, & spooky sussex

    $6,500
  14. Wsga FoundationWest Allis, WI

    Donation

    $6,500
  15. Macc FundMilwaukee, WI

    2025 ringer golf marathon sponsorship

    $5,000
  16. Living Word Lutheran High SchoolJackson, WI

    Scholarship program

    $4,850
  17. Kettle Moraine Lutheran High SchoolJackson, WI

    Annual scholarship for the 2025-26 school year

    $4,580
  18. National MS SocietyNew York, NY

    Bike MS campaign donation

    $1,000
  19. Richfield Wi Community FoundationRichfield, WI

    The firefighter's golf classic sponsorship

    $1,000
  20. MC Preparatory Schools of Wisconsin IncMilwaukee, WI

    To support the kindergarten phonics program

    $888
  21. CruMilwaukee, WI

    Donation

    $500

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Human services2 grants $110,00049% of the total
  2. Education1 grant $35,50016% of the total
  3. Crime and legal aid2 grants $35,00016% of the total
  4. Health2 grants $20,0009% of the total
  5. Youth development1 grant $12,5006% of the total
  6. Philanthropy and grantmaking1 grant $10,0004% of the total

By State

Grants to organizations with a US address, latest year.

  1. Wisconsin19 grants $278,568
  2. Illinois1 grant $25,000
  3. New York1 grant $1,000

Officers, directors and trustees

3 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • James DawsonDIRECTOR Hours 0Pay $0
  • Heidi DawsonDIRECTOR Hours 0Pay $0
  • Hans DawsonDIRECTOR Hours 0Pay $0

The return

More foundations

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Same main cause (human services), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. John & Janet Vandenwymelenberg FoundatioGreen Bay, WI 27 grants Preselected only $306,611 giving
  2. Seidl Foundation IncWausau, WI 10 grants Preselected only $314,500 giving
  3. Dahl Family Foundation XXXXXX6214La Crosse, WI 10 grants Preselected only $292,500 giving
  4. R A Stevens Family FoundationMilwaukee, WI 18 grants Accepts applications $288,200 giving
  5. Edward J Okray Foundation IncPlover, WI 27 grants Preselected only $285,000 giving