Donald D Mateer Foundation
The Donald D Mateer Foundation is a private foundation based in Pittsburgh, Pennsylvania. Its 2025 filing reports grants to charitable organizations in several states, including Pennsylvania, Texas, and Michigan.
Donald D Mateer Foundation at a glance
In short: Donald D Mateer Foundation gave $75K across 34 grants in 2025 (avg $2K), top state Pennsylvania. 71% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $75,000
- -6.3% vs 2024
- Grants made (2025)
- 34
- +47.8% vs 2024
- Average grant
- $2,206
- -36.6% vs 2024
- Median grant
- $1,250
- Total assets
- $669,245
- -8.5% vs 2024
- New grantees (estimate)
- 71% first-time grantees (24 of 34, 2025)
- Primary geography
- Pennsylvania (45% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
How to apply to Donald D Mateer Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.
- Contact
Mailing address: 200 Inglewood Dr, Pittsburgh, PA 15228
Phone: (412) 726-5358
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Donald D Mateer Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Stage Right ($15K). Together the top 10 received $48K.
Grant Size Distribution
122 grants across all recorded years
The most common grant size was under $50K: 121 grants of 122 (99%).
Geographic Focus
Where this funder awards grants
In 2025, Pennsylvania organizations received 45% of grant dollars, Texas 23%, Michigan 16%, Florida 7%, and West Virginia 3%.
Grant Distribution by State
Share of 2025 grant dollars across all 34 itemized grants.
States
Cities
Is Donald D Mateer Foundation open to new grantees?
71%
first-time grantees, 2025
In 2025, 24 of 34 grantees (71%) were first-time recipients. First grants averaged $2K; repeat grants $2K. How we count
Medians: $1K first-time, $1K repeat.
- 26% of 2025 grantees were also funded in 2024. Method
- Giving grew 50% from 2022 to 2025. Method
- In 2025 it paid out 192% of its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2020–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2025, annual grant giving ranged from $50K (2022) to $80K (2024). In 2025 it made 34 grants totaling $75K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Stage Right Greensburg, PA | Operational Budget | $15,000 |
| Westmoreland Human Opportunities Greensburg, PA | Operational Budget | $5,000 |
| Uf College of Veterinary Medicine Gainseville, FL | Operational Budget | $5,000 |
| Out Youth Austin, TX | Operational Budget | $5,000 |
| KUT Radio Austin, TX | Operational Budget | $5,000 |
| Humane Animal Allies Kittanning, PA | Operational Budget | $3,000 |
| Animal Friends Pittsburgh, PA | Operational Budget | $2,500 |
| The Pittsburgh Foundation Pittsburgh, PA | Donald D Mateer Scholarship Fund | $2,500 |
| Old Joe Club Charities Inc Greensburg, PA | Operational Budget | $2,500 |
| Open Book Theatre Company Trenton, MI | Operational Budget | $2,500 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $669,245 | $38,949 | $101,729 | $75,000 | 34 | $89,025 | $26,245 | $46,471 |
| 2024 | $731,783 | $29,899 | $109,666 | $80,000 | 23 | $94,135 | $17,417 | $45,393 |
| 2023 | $810,812 | $123,513 | $80,359 | $52,620 | 19 | $66,708 | $109,862 | $42,261 |
| 2022 | $766,907 | $31,095 | $80,023 | $50,020 | 21 | $64,014 | $16,790 | $45,956 |
| 2021 | $815,781 | $90,132 | $110,883 | $80,000 | 25 | $94,048 | $73,297 | $54,143 |
| 2020 | $836,617 | $31,314 | $95,142 | $66,500 | 17 | — | $17,020 | $47,483 |
Under IRS private-foundation payout rules, Donald D Mateer Foundation reported a distributable amount of $46K 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 foundation mission statement is provided. Its 2025 grants include support for organizations whose stated missions involve performing arts education, community services, LGBTQ+ youth, animal welfare, homelessness services, and community grantmaking. For example, Stage Right says its mission is to build a culturally engaged community through performing arts education and advocacy. Out Youth says it promotes the well-being of sexual and gender minority youth.
Grantmaking
In 2025, the foundation made 34 grants totaling $75,000. Awards ranged from $500 to $15,000, with a median grant of $1,250. The largest listed grants included $15,000 to Stage Right and $5,000 each to Westmoreland Human Opportunities, UF College of Veterinary Medicine, Out Youth, and KUT Radio. Other listed recipients included Humane Animal Allies ($3,000), Animal Friends ($2,500), and the Pittsburgh Foundation ($2,500).
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Charlotte M Stephenson, Charlotte B Mateer-Obert, and Donald D Mateer as trustees; Ryan D Stephenson as trustee and secretary; and Christine Dowhan-Bailey as trustee.
Donald D Mateer Foundation's 2025 filing lists 5 officers; 1 of 5 officers listed in 2025 is compensated.
Officers on the 2025 filing
Ryan D. Stephenson
Trustee & Secretary
On filings since 2020
2 hrs/week
$15K (2020) → $15K (2025)
Charlotte M. Stephenson
Trustee
Trustee & Secretary → Trustee, 2021
On filings since 2020
0.5 hrs/week
No compensation reported
Donald D. Mateer
Trustee
On filings since 2020
0.2 hrs/week
No compensation reported
Christine Dowhan-Bailey
Trustee
On filings since 2021
0.5 hrs/week
No compensation reported
Charlotte B. Mateer-Obert
Trustee
New on the 2025 filing
No compensation reported
Former officers (1)
- Former: Charlotte B. Obert (2020–2024) — Trustee
Data from IRS Form 990 filings, 2020–2025. "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
The highest reported compensation on the 2025 filing was $15K, to Ryan D Stephenson (Trustee/Secy).
Frequently asked questions about Donald D Mateer Foundation
How much does Donald D Mateer Foundation give each year?
Donald D Mateer Foundation gave $75K across 34 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $80K across 23 grants.
What is Donald D Mateer Foundation's typical grant size?
Donald D Mateer Foundation's median grant in 2025 was $1,250, and its average grant was $2,206, across 34 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Donald D Mateer Foundation that year got $2K on average.
Where does Donald D Mateer Foundation give grants?
Donald D Mateer Foundation's top state is Pennsylvania, with 45% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were Texas (23%) and Michigan (16%). The most frequent recipient cities were Austin, TX (6 grants), Pittsburgh, PA (5 grants) and Greensburg, PA (3 grants).
Does Donald D Mateer Foundation give general operating support?
Yes: 97% of Donald D Mateer Foundation's 2025 grants with a stated purpose (33 of 34) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Donald D Mateer Foundation's largest grantees?
Donald D Mateer Foundation's largest 2025 grantees include Stage Right ($15,000), Westmoreland Human Opportunities ($5,000) and Uf College of Veterinary Medicine ($5,000), according to its 2025 IRS Form 990-PF. Together they received 33% of its itemized 2025 grant dollars.
How large is Donald D Mateer Foundation?
Donald D Mateer Foundation reported $669K in total assets on its 2025 IRS Form 990-PF. It paid out $89K in qualifying distributions that year, against a required minimum of $46K (roughly 5% of its investment assets).
What does Donald D Mateer Foundation fund?
No foundation mission statement is provided. Its 2025 grants include support for organizations whose stated missions involve performing arts education, community services, LGBTQ+ youth, animal welfare, homelessness services, and community grantmaking. See mission & focus areas ↑
How do I apply for a grant from Donald D Mateer Foundation?
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Donald D Mateer Foundation's EIN?
Donald D Mateer Foundation's EIN (Employer Identification Number) is 25-1895885. IRS Form 990 filing data is available on this page for 2020–2025.
Does Donald D Mateer Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated September 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
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 10, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 15, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 13, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 13, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 7, 2026)
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Cite this profile
Grantable. (2026). Donald D Mateer Foundation funder profile. GrantGraph. Retrieved October 11, 2026, from https://grantable.co/funders/donald-d-mateer-foundation-morg_7694555546f54d29a9fa3de31123f8ee
BibTeX
@misc{grantable_251895885_2026,
author = {{Grantable}},
title = {{Donald D Mateer Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/donald-d-mateer-foundation-morg_7694555546f54d29a9fa3de31123f8ee},
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 Donald D Mateer 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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