Robert Glenn Rapp Foundation

Private foundation · EIN 73-0616840 · since 1953rappok.org·Oklahoma, United States·Updated 13 October 2026

At a glance

$2M

Annual giving, 2024 tax year

From the Form 990-PF filing

$2,000 to $100k

Grant range

From grants in the 990-PF filings

$20,000

Typical grant (median)

47 grants in the latest filing

Open to applications

Fixed application deadlines · unsolicited applications welcome

Key takeaways

If your work is in education, construction, health and wellness, religion, literacy, or arts and culture, and your organisation is a 501(c)(3) in the United States or its possessions, it fits the foundation's stated areas, and Oklahoma is its priority.
Individuals, political activities, and organisations with written policies that discriminate as described in the filing should not apply.
Most grants fall between $2,000 and $100,000, half are $20,000 or less, and the median is $20,000, so a request near $20,000 is a sensible starting point, though the largest grant was $250,000, so that band is not a ceiling.
Begin with a Letter of Inquiry between April 1 and May 31, by 5pm CST; only approved applicants are invited to a full application, which can be submitted through August 31, by 5pm CST.
Repeat funding is strong, with 80% of grant dollars in the filing going to organisations it had funded before, so a first approach that shows outcomes and impact is worth making carefully.

Overview

Robert Glenn Rapp Foundation is a US private foundation based in Oklahoma City, OK.

What they fund

Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and its website, with every statement checked against those sources. Sources read on 7 October 2026.

Priority Areas

The foundation supports charitable organisations in the United States, both large and small, with a preference for education and Oklahoma. Its stated funding areas include education from pre-kindergarten through higher education, construction, health and wellness, religion, literacy, and arts and culture. Its mission is to resource religious, charitable, scientific, literary and educational organisations and programmes that traditional philanthropic sources might avoid. It accepts applications from qualified 501(c)(3) charitable organisations located in the United States or its possessions. The foundation considers proposals on their merits, their alignment with its funding priorities and its financial position. Organisations first submit a Letter of Inquiry; approved applicants are invited to submit a full application.

Themes

Education
Construction
Health & wellness
Religion
Literacy
Arts & culture

Geographic Focus

United States. Priority: Oklahoma.

What They Don't Fund

Individuals
Political activities
Projects that do not meet the Foundation's funding priorities
Organizations or projects with written policies that discriminate against individuals based on race, color, sex, sexual orientation, gender identity, religious creed, national origin, physical or mental disability, or protected veteran status, or any other characteristic protected by law

How to apply

Organisations first submit a Letter of Inquiry. Approved applicants receive an invitation and a link to submit a full grant application.

Deadlines:

Letters of Inquiry may be submitted from April 1 to May 31, by 5pm CST.
Approved applicants may submit full applications after approval through August 31, by 5pm CST.

Application success factors

Repeat giving: In its TY2024 filing, 80% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 164 grants to organisations were $20,000 or less.

What the foundation says:

The trustees assess the merits of the proposal, its alignment with funding priorities and the foundation's financial position.
Applications are reviewed case by case, with a focus on outcomes and impact.
The request amount should reflect the proposed programme's effectiveness and the specific needs and challenges of the communities involved.

Where grants go

From grants to organisations in the foundation’s filings for tax years 2022–2024.

Grant dollars by state

Oklahoma85%

Texas8%

California6%

Nevada<1%

Kentucky<1%

Illinois<1%

3 other states: <1%

The largest single recipient received 9% of grant dollars to organisations.
In tax year 2024, 80% of grant dollars went to organisations Robert Glenn Rapp Foundation had funded in earlier filings.
No grants were paid directly to organisations outside the US.
<1% of grant dollars went to intermediaries that regrant to other organisations.

Grants

47 grants in the latest filing analysed · median $20,000

How much do they typically give?

Share of 47 grants in tax year 2024 by size

Under $1k4%

$1k–$2.5k4%

$2.5k–$5k4%

$5k–$10k15%

$10k–$25k23%

$25k–$50k13%

$50k–$100k17%

$100k–$250k19%

Median $20,000 (tax year 2024)

The largest grants to organisations in the foundation’s latest filing:

Catholic Charities · Construction of women's day shelter
$201,5002024 tax year
Oklahoma University · Endowment for microbiology
$200,0002024 tax year
Heritage Hall School · Endowments & new construction
$126,7002024 tax year
Myriad Gardens Foundation · Capital campaign
$126,5002024 tax year
Oklahoma Medical Research Foundation · Renovations and equipment upgrades to the Reynolds Center
$105,0002024 tax year
Cistercian Preparatory School · Theatre construction
$105,0002024 tax year
San Diego Symphony Orchestra · Purchase image projection equipment for Rady Shell
$104,0002024 tax year
Southern Methodist University · Cox School of Business Renovation and Expansion
$101,0002024 tax year

Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.

Officers and directors

Margie S John — Trustee
Trevor Daniel — Trustee
Patricia A Daniel — Trustee
Patricia F Milligan — Trustee
Tony Boghetich — Trustee
Merry L Knowles — Trustee
Michael J Milligan — Trustee
Jilene K Boghetich — Trustee
Lois D Milligan — Trustee
James H Milligan — Trustee
Travis Boghetich — Trustee
Elizabeth Watts — Trustee
April Boghetich Rutledge — Trustee
Cory N Knowles — Trustee
Richard J John — Trustee

From the latest Form 990-PF filing

3 years of tax filings

Year	Total expenses	Grants paid	Assets	Filing document
2022 tax year	$2,576,643	$1,797,575	$43,859,913	Filing for 2022 tax year
2023 tax year	$2,617,495	$1,892,580	$42,284,219	Filing for 2023 tax year
2024 tax year	$2,520,429	$1,971,000	$45,663,760	Filing for 2024 tax year

Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.