Riley Mabel Louise Tr Uwill logo

Riley Mabel Louise Tr Uwill

PITTSBURGH, PA EIN: 04-6278857 Website

The Riley Mabel Louise Trust Under Will is a private foundation established in 1971 through the will of Mabel Louise Riley, a Boston native and arts patron who passed away in 1971 at age 88. The foundation operates as a general-purpose funder with a strategic focus on community development and support for disadvantaged populations in the Boston area.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$47.3M

-3.8% YoY

Annual Giving

$3.7M

+4.6% YoY

Grant Count

69

+6.2% YoY

Avg Grant Size

$54K

-1.4% YoY

Research compiled by Grantable AI from public sources. Last updated April 2026.

Mission & Focus Areas

The foundation's guiding principle comes from Miss Riley's instruction to her trustees to give "particular consideration to the needs of children and youth."

Primary funding priorities include:

  • Literacy and afterschool programs for disadvantaged children and adolescents
  • Character-building programs for children and adolescents
  • Community development benefiting low-income and minority neighborhoods, including job development, training, and housing
  • Citywide cultural improvements and arts initiatives in Boston and vicinity
  • High-impact grants with potential for significant community benefits, including those with some element of risk

The foundation emphasizes leveraging its grants by funding new programs that can become self-sufficient or serve as models for replication in other geographic areas.

Grantmaking

Online application through the GMA Foundations portal

How to Apply

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Geographic Focus

Where this funder awards grants

Boston, MA and its 23 neighborhoods, with the Small Grants Fund serving the Greater Dudley area.

Grant Distribution by State

10states
+2 more states

Cities

ActonAndoverAtlantaBelmontBostonBraintreeBrightonBrocktonBrooklineBrooklynBurlingtonCambridgeCharlestownChelseaColorado SpgsConcordDanversDedhamDorchesterDorchester Center

Financial History

Multi-year comparison from IRS filings

Annual Giving: $3,580,190 (2023)

Number of Employees: 3

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$2M$4M$5M$7M20202021202220232024
Metric202420232022
Total Assets$47,264,875$49,133,038$47,126,550
Revenue$2,886,522$6,522,059$888,658
Expenses$4,864,161$4,721,806$4,816,087
Qualifying Distributions$4,194,786$3,997,705$4,398,807
Net Investment Income$2,255,483$6,010,435$1,631,353
Distributable Amount$3,812,819$3,401,470$3,531,869

Giving Over Time

Total grant dollars and number of grants per year

$0$1M$2M$3M$4M62 grants202039 grants202180 grants202265 grants202369 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

EAST BOSTON SOCIAL CENTE…$100KHEALTH IMPERATIVES INC$100KINNERCITY WEIGHTLIFTING …$100KINSTITUTE OF TECHNOLOGY$100KUTEC INC$100KTHE BASE$100KBOSTON FOOD FOREST COALI…$100KPHILANTHROPY MASSACHUSET…$87KFAMILIES FIRST PARENTING…$80KBOTTOM LINE INC$75K

Grant Size Distribution

239 grants across all recorded years

17<$50K198$50–100K23$100–250K$250–500K$500K–1M1$1–5M$5M+

Open Grants

1 open opportunity from Riley Mabel Louise Tr Uwill

Giving History

Grant recipients and amounts by year

No grants recorded for .

Leadership & Key People

Leadership team and compensation from IRS filings

Compensation Overview

From 2024 IRS filing

BNY MELLON N ATRUSTEE$359KGRACE K FEYCO-TRUSTEE$56KJOANNE Y JAXTIMERCO-TRUSTEE$56K

From 2024 filing

NameTitleHoursCompensation
GRACE K FEYCO-TRUSTEE1$56,198
JOANNE Y JAXTIMERCO-TRUSTEE1$56,198
BNY MELLON N ATRUSTEE1$358,969

Data last updated April 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.

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