The Riddle Foundation

Foundation · Grantmaker Houston, TX EIN: 76-0455477

The Riddle Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Houston, TX. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $82K in total assets. In 2024, it awarded 2 grants totaling $7K. Net investment income was $295.

Key facts about The Riddle Foundation

In short: The Riddle Foundation gave $7K across 2 grants in 2024 (avg $3K), mostly in Texas. Source: 2024 IRS Form 990-PF.

EIN: 76-0455477
Latest 990 filing: Form 990-PF, 2024
Annual giving (2024): $6,944
Grants made (2024): 2
Average grant: $3,472
Median grant: $3,472
Total assets: $82,090
Primary geography: Texas (100% of itemized 2024 grant dollars)

Data from IRS Form 990-PF, 2024; updated September 2026.

Quick answers about The Riddle Foundation

How much does The Riddle Foundation give each year?

The Riddle Foundation gave $7K across 2 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $22K across 3 grants.

How The Riddle Foundation gives

Giving fell 52% from 2021 to 2024. Method
In 2024 it paid out 406% of its IRS minimum distribution (the 5% rule). Method

From the foundation's IRS Form 990-PF filings. Methodology.

Next steps with The Riddle Foundation

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Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$82K

-7.5% YoY

Annual Giving

$7K

-68.0% YoY

Grant Count

-33.3% YoY

Avg Grant Size

$3K

-52.0% YoY

Under IRS private-foundation payout rules, The Riddle Foundation reported a distributable amount of $2K for 2024 — the minimum it must pay out in qualifying distributions.

About The Riddle Foundation

Based on IRS filings

Focus Areas

Philanthropy, Voluntarism & Grantmaking

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

Texas $7K (100%)

Share of all 2 itemized 2024 grant dollars.

States

Colorado Texas

Cities

College StationHoustonColorado Springs

Financial History

Multi-year comparison from IRS filings

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2024	2023	2022
Total Assets	$82,090	$88,739	$112,199
Revenue	$295	$453	$754
Expenses	$6,944	$23,875	$26,540
Qualifying Distributions	$6,944	$21,700	$24,380
Net Investment Income	$295	$453	$754
Distributable Amount	$1,710	$2,607	$5,752

Data update history

When this profile's IRS filing data changed on Grantable

March 3, 2026 IRS filings on file for fiscal years 2020–2024

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 2 recipients in 2024

Grant Size Distribution

14 grants across all recorded years

Giving History

Grant recipients and amounts by year

Recipient	Purpose	Amount
TEXAS 4-H YOUTH DEVELOPMENT FOUNDATION College Station, TX	FUNDING PROGRAMS TO SUPPORT AGRICULTURE & LIVESTOCK, FAMILY & COMMUNITY HEALTH AND STEM	$4,444
12TH MAN FOUNDATION College Station, TX	FUNDING SCHOLARSHIPS, PROGAMS AND FACILITIES OF TAMU	$2,500

Leadership & Key People

Officers and directors from IRS filings

The Riddle Foundation is led by Don R. Riddle, Director & President on every filing since 2020; none of the 4 officers listed in 2024 report compensation.

Officers on the 2024 filing

Don R. Riddle

Director & President

On filings since 2020

No compensation reported
Jenny L. Riddle

Director & Vice President

On filings since 2020

No compensation reported
Stacy Riddle-Baumgartner

Director & Secretary

On filings since 2020

No compensation reported
Todd A. Riddle

Director & Treasurer

On filings since 2020

No compensation reported

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Subject Areas

Focus areas based on grantmaking activity

Philanthropy, Voluntarism & Grantmaking

Frequently Asked Questions

What is The Riddle Foundation?

The Riddle Foundation is a private foundation focused on Philanthropy, Voluntarism & Grantmaking, based in Houston, TX. It holds $82K in total assets as of 2024.

How large is The Riddle Foundation?

As of 2024, The Riddle Foundation holds $82K in total assets with $295 in annual revenue. It awarded 2 grants totaling $7K in 2024.

Where does The Riddle Foundation operate?

The Riddle Foundation has awarded grants in Colorado, Texas.

How much is The Riddle Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, The Riddle Foundation reported a distributable amount of $2K on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.