The Texas State Capitol

Form 990-PFTax year 2025EIN 27-3816047

Waterproof Foundation Inc

A private foundation in Austin, TX. Its return for tax year 2025 lists 22 grants and $454,005 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

Accepts applications

The return gives an application contact and rules, as below.

Contact
Patrick Chalmers
1000 Westbank Drive Suite 2A
Austin, TX 78746
(512) 637-3540
Form and materials
An application for a grant should be in the form of a letter and include the following: 1. A list of the organization's board members 2. A summary describing the applicant and the project to be funded 3. The total funding required for the project and the amount requested from the foundation 4. A copy of the organization's most recent form 990 5. A copy of the determination letter issued to the applicant by the internal revenue service. The determination letter must state (i) that the organization is exempt from federal income taxation as an organization described in section 501(c)(3) of the internal revenue code and (II) the organization is classified as a public charity
Deadlines
None
Restrictions
Must meet the definition within internal revenue code 501(c)(3)

Assets and giving by year

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

    $454,005

    Grants listed
    22
    Assets, end of year
    $1,390,165
  • Tax year 2024

    $461,505

    Grants listed
    23
    Assets, end of year
    $1,834,428
  • Tax year 2023

    $438,500

    Grants listed
    24
    Assets, end of year
    $2,212,201
  • Tax year 2022

    $535,000

    Grants listed
    27
    Assets, end of year
    $2,593,644
  • Tax year 2021

    $447,000

    Grants listed
    25
    Assets, end of year
    $3,106,267
  • Tax year 2020

    $436,500

    Grants listed
    24
    Assets, end of year
    $2,080,194
  • Tax year 2019

    $428,000

    Grants listed
    21
    Assets, end of year
    $3,589,459
  • Tax year 2018

    $374,500

    Grants listed
    18
    Assets, end of year
    $4,256,425

Grants paid in 2025

22 grants, largest first

As listed on the return.

  1. Unc-Chapel HillChapel Hill, NC

    Education

    $200,000
  2. UatxAustin, TX

    Education

    $100,000
  3. St Andrew's Episcopal SchoolAustin, TX

    Education

    $60,000
  4. Heartgift FoundationAustin, TX

    Medical treatment

    $10,005
  5. Cleveland ClinicCleveland, OH

    Medical treatment

    $10,000
  6. MD AndersonHouston, TX

    Medical research

    $10,000
  7. Texas Wildlife Association FoundationNew Braunfels, TX

    Wildlife conservation

    $10,000
  8. Providence Montana Health FoundationMissoula, MT

    Medical treatment

    $10,000
  9. Austin Community FoundationAustin, TX

    Social welfare

    $5,000
  10. Pease Park ConservancyAustin, TX

    Park conservation

    $5,000
  11. Texas Book FestivalAustin, TX

    Education

    $5,000
  12. Wonders & WorriesAustin, TX

    Counseling and bereavement support

    $5,000
  13. La'aretz FoundationBrooklyn, NY

    Social welfare

    $5,000
  14. The Seton FundSaint Louis, MO

    Medical treatment

    $4,000
  15. Hillside Early Childhood CenterAustin, TX

    Education

    $2,500
  16. St Andrew's SchoolMiddletown, DE

    Education

    $2,500
  17. The Episcopal Church of the Good ShepherdAustin, TX

    Religious

    $2,500
  18. Jewish Agency for IsraelNew York, NY

    Social welfare

    $2,500
  19. Do No HarmGlen Allen, VA

    Education/social welfare

    $2,000
  20. Explore AustinAustin, TX

    Leadership, mentoring

    $1,000
  21. Flathead LakersPolson, MT

    Water conservation

    $1,000
  22. University of Montana FoundationMissoula, MT

    Education

    $1,000

Where the money goes

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

  1. Education5 grants $164,50080% of the total
  2. Health2 grants $20,00510% of the total
  3. Sports and recreation2 grants $10,0005% of the total
  4. Human services1 grant $5,0002% of the total
  5. International aid1 grant $2,5001% of the total
  6. Disaster relief and public safety1 grant $2,000<1% of the total
  7. 1 other causes1 grant $1,000<1% of the total

By State

Grants to organizations with a US address, latest year.

  1. Texas13 grants $220,005
  2. North Carolina1 grant $200,000
  3. Montana3 grants $12,000
  4. Ohio1 grant $10,000
  5. New York2 grants $7,500
  6. Delaware1 grant $2,500
  7. Virginia1 grant $2,000

Officers, directors and trustees

4 people as filed

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

  • Elizabeth Scott LoewenbaumCHAIRMAN AND VP Hours 1Pay $0
  • Anna Loewenbaum HargrovePRESIDENT Hours 1Pay $0
  • Reginald HargroveSECRETARY Hours 1Pay $0
  • Patrick ChalmersTREASURER Hours 1Pay $0

The return

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