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Florida · Nonprofit

THE CORNERSTONE SCHOOL INC

THE CORNERSTONE SCHOOL INC (Florida) receives grants from 11 organizations whose IRS filings report $497,831 to it, the largest being Mantz Foundation ($262,500). 8 of them have funded it in more than one year.

Revenue FY2025
$5.5M
Funders on record
11
Grants received
$498k
Net assets
$5.9M
8/11 repeat funderspeak grant-dependency 4%
01What it does

What The Cornerstone School Inc does

Mission

We prepare students for success in an ever-changing world through an innovative curriculum and inspriational teaching that develops a passion for learning.

As stated on its FY2025 Form 990.

Program

  1. To provide a private educational environment for preschool through middle school aged children. The school serves approximately 309 students.

    $3,157,790 spentof which $98,451 as grants$5,009,351 earned by the program
    100% of program spending

The program described on its FY2024 Form 990. Program spending in total: $3,157,790.

02The organization over time

The organization over time

Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.

100 = 20172017 Revenue 100 ($2.3M) Expenses 100 ($2.1M) Net assets 100 ($1.8M)2018 Revenue 111 ($2.5M) Expenses 111 ($2.3M) Net assets 112 ($2.0M)2019 Revenue 122 ($2.7M) Expenses 122 ($2.5M) Net assets 126 ($2.2M)2020 Revenue 155 ($3.5M) Expenses 133 ($2.8M) Net assets 167 ($2.9M)2021 Revenue 151 ($3.4M) Expenses 145 ($3.0M) Net assets 190 ($3.3M)2022 Revenue 163 ($3.7M) Expenses 155 ($3.2M) Net assets 216 ($3.8M)2023 Revenue 186 ($4.2M) Expenses 175 ($3.6M) Net assets 248 ($4.4M)2024 Revenue 217 ($4.9M) Expenses 202 ($4.2M) Net assets 288 ($5.1M)2025 Revenue 244 ($5.5M) Expenses 226 ($4.7M) Net assets 336 ($5.9M)
'17'18'19'20'21'22'23'24'25
Revenue (244)Expenses (226)Net assets (336)

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2019 to 2020, from $3.1M to $5.8M (+87%).

$4.3M
$4.7M
$3.1M
$5.8M
$6.2M
$6.6M
$6.8M
$8.0M
$8.9M
'17'18'19'20'21'22'23'24'25
Total assetsTotal liabilities

How it's funded, over time

Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

Government-grant reliance: 2020 8% · 2021 3%. Grants only. Government contracts and fees sit inside program revenue.

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 9 reported years ran a deficit.

$180k
’17
$204k
’18
$229k
’19
$732k
’20
$394k
’21
$455k
’22
$562k
’23
$715k
’24
$811k
’25
5.9
months of
reserve

Leadership and staff

The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.

'17'18'19'20'21'22'23'24'25
Listed161618161616151715
Joined·+4+3+5+2+1+4+3+2
No longer listed·41721514
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 2 funders to 6 funders, grant income rose $7k → $83k.

3 of 11 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 25% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.

From the IRS filings of THE CORNERSTONE SCHOOL INC’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

How concentrated its funding is

THE CORNERSTONE SCHOOL INC leans on a few funders — its largest provides 53% of grant income and the top three 89%; half comes from just 1 funder.

the vertical line marks half of all grant income — 1 funder to its left

26% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund THE CORNERSTONE SCHOOL INC.

53%
largest funder
89%
top three
~3
effective funders

Largest funder’s share by year: 2017 91% · 2018 84% · 2019 93% · 2020 42% · 2021 46% · 2022 80% · 2023 60% — diversifying over time.

“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

How long its funders stay

50% of THE CORNERSTONE SCHOOL INC's funders are still giving 3 years after their first grant; 73% give in more than one year at all.

first grant+1y+2y+3y+4y+5y

Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.

Where its funders are

96% of THE CORNERSTONE SCHOOL INC's grant income comes from Florida funders.

NH
IL
PA
FL

In-state vs out-of-state, by year

’17
’18
’19
’20
’21
’22
’23
Florida out of state home

Funder states come from each funder’s own filing. $126k arriving through sponsors registered in 3 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

04Its place in the field

Government funding THE CORNERSTONE SCHOOL INC receives

Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $27 on record.

State$27
Top programs
  • REFUNDS - GENERAL $27

Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.

Organizations like THE CORNERSTONE SCHOOL INC

Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.

In Florida

Nationally

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Where the money goes

68% of spending goes to programs.

Program 68%Management 32%Fundraising 0%

Governance

13
board members
100%
independent
✓Conflict-of-interest policy✓Whistleblower policy✓Document retention✓Board reviewed the 990–Audited financials

Screen this organization

A dated, signed PDF of the compliance screen for THE CORNERSTONE SCHOOL INC: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.

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Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf

Questions and answers

Who funds THE CORNERSTONE SCHOOL INC?
THE CORNERSTONE SCHOOL INC (Florida) receives grants from 11 organizations whose IRS filings report $497,831 to it, the largest being Mantz Foundation ($262,500). 8 of them have funded it in more than one year.
How many funders does THE CORNERSTONE SCHOOL INC have?
IRS filings report 11 organizations giving $497,831 in grants to THE CORNERSTONE SCHOOL INC, 8 of which have funded it in more than one year.
Who is the largest funder of THE CORNERSTONE SCHOOL INC?
Mantz Foundation is the largest funder on record, with $262,500 in grants. The full list of funders is on this page.
How can an organization like THE CORNERSTONE SCHOOL INC find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Florida. The funding by cause and by state pages list the largest funders for a given area and how to approach them.

Play a game about who funds Cornerstone School →

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 11 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing