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Pennsylvania · Public charity

Mastery Charter Schools Foundation

To develop and provide financial support for the mastery network of charter schools.

$2.1M
Granted FY2025(still arriving)
13
Itemized grants FY2025
8
Organizations funded FY2024
13%
First-time grantees FY2024
Read the full brief
Itemized, FY2025
$1.6M
The rest is grants the schedule does not break out
Median grant, FY2025
$29,594
Largest grant, FY2025
$1,219,193
Organizations funded a year
7 to 14
FY2018 to FY2024
States reached, FY2025
2
Total assets, FY2025
$118M

How open it is to new grantees

In FY2024, 13% of the organizations Mastery Charter Schools Foundation funded were first-time grantees, receiving 1% of its grant dollars.

New vs renewed · share of each year

In FY2024, 99% of grant dollars renewed an existing relationship; $10k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’20’21’22’23’24
EducationOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving13$1.6M0%
FY20248$743k13%
FY202312$2.2M8%
FY20227$2.2M14%
FY202112$2.7M0%
FY202010$2.4M0%
FY201913$1.9M0%
FY201814$4.0M0%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$24M

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 21 grantees

Plus 3 recipients with no EIN on record ($266k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Mastery Charter Schools Foundation supplied at peak.

25%50%75%100%$10Mgrantee revenue →↑ funder's share of their budgetMastery Charter High School: $16,205,027 over 9y, 9.3% of budgetMastery Charter School - Gratz Campus: $1,698,756 over 8y, 2.4% of budgetMastery Charter School John Wister Campus: $1,595,250 over 7y, 11% of budgetFrederick Douglass Mastery Charter School: $804,208 over 8y, 5.8% of budgetMastery Schools of Camden Inc: $396,963 over 9y, 0.2% of budgetMastery Charter School Pastorius - Richardson Elementary: $358,981 over 5y, 3.0% of budgetMastery Charter School - Pickett Campus: $357,735 over 8y, 1.0% of budgetMastery Charter School-Shoemaker Campus: $275,019 over 6y, 1.8% of budgetMastery Charter School - Smedley Elementary: $269,115 over 9y, 0.4% of budgetMastery Charter School - Thomas Campus: $241,329 over 6y, 0.9% of budgetSpringside Chestnut Hill Academy: $227,000 over 1y, 0.5% of budgetMastery Charter School - Harrity Elementary: $205,040 over 8y, 0.8% of budgetHardy Williams Academy Charter School: $166,388 over 8y, 0.3% of budgetMastery Charter School - Clymer Elementary: $125,626 over 8y, 0.3% of budgetMastery Prep Elementary Charter School: $100,020 over 1y, 0.9% of budgetMastery Charter School - Mann Elementary: $96,069 over 7y, 0.4% of budgetCommunity Partnership School: $93,500 over 1y, 1.9% of budgetThe Philadelphia School: $59,500 over 1y, 0.5% of budgetGrover Cleveland-Mastery Charter School Elementary: $43,752 over 2y, 0.2% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 19.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Maurice Romy Fdn Dima-Br WdpPA15.8× affinity5 shared granteesties to 7 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: Maurice Romy Fdn Dima-Br Wdp · The Patricia Kind Family Foundation · Business Leadership Organized for Catholic Schools · Central Pennsylvania Scholarship Fund · The Philadelphia Foundation · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare Mastery Charter Schools Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Mastery Charter Schools Foundation?

Find your warmest path to Mastery Charter Schools Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About Mastery Charter Schools Foundation

How much does Mastery Charter Schools Foundation give?
Mastery Charter Schools Foundation reported 13 itemized grants totaling $1,574,027, out of $2,089,112 in total grant expense reported on the return in its FY2025 IRS filing. It funded between 7 and 14 organizations a year over FY2018 to FY2024.
What does Mastery Charter Schools Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Education (100%).
Who are Mastery Charter Schools Foundation's largest grantees?
By total granted over FY2017 to FY2025: Mastery Charter High School ($16M), Mastery Charter School - Gratz Campus ($1.7M), Mastery Charter School John Wister Campus ($1.6M).
Does Mastery Charter Schools Foundation fund new organizations?
In FY2024, 13% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Mastery Charter Schools Foundation?
Its strongest co-funders, measured against what their size predicts, include Maurice Romy Fdn Dima-Br Wdp, The Patricia Kind Family Foundation, Business Leadership Organized for Catholic Schools.
Where is Mastery Charter Schools Foundation based?
Mastery Charter Schools Foundation is based in PA.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 24 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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