New York · Nonprofit
THE STONY BROOK SCHOOL
THE STONY BROOK SCHOOL (New York) receives grants from 43 organizations whose IRS filings report $13,614,842 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($6,261,590). 26 of them have funded it in more than one year, and 53% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $34M
- Funders on record
- 43
- Grants received
- $14M
- Net assets
- $69M
What The Stony Brook School does
Mission
(see schedule o)The Stony Brook School is an independent college preparatory school (grades 7-12) that exists to challenge young men and women to know jesus christ as lord, to love others as themselves, and to grow in knowledge and skill, in order that they may serve the world through their character and leadership.
As stated on its FY2025 Form 990.
Programs
The Stony Brook School is an independent college preparatory school for boarding and day students in grades 7-12. The enrollment this year was approximately 598 students attending classes at the stony brook campus. The educational components of the school include a rigorous academic agenda.
$23,745,957 spentof which $5,188,594 as grants$25,059,641 earned by the program89% of program spendingThe Stony Brook School launched gravitas in 2020. Gravitas is an extension of The Stony Brook School and provides online access to the stony brook education through an online delivery. In fy24 and fy25, respectfully, gravitas plus & sbs flex were created to give gravitas students the opportunity to have a hybrid experience at sbs.
$2,246,936 spentof which $436,527 as grants$1,574,686 earned by the program8% of program spendingThe Stony Brook School offers extracurricular activities such as sports, which includes a marine/sailing program, clubs, wellness services, residential life for the boarding students, and student activities for all students.
$702,619 spent$223,289 earned by the program3% of program spendingThe Stony Brook School offers academic support services that are called "learning services". In addition, tutoring and academic support is offered both through learning services and through the academic office.
$81,154 spent$72,475 earned by the program0% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $26,776,666.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $64M to $75M (+17%).
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.
Government-grant reliance: 2021 6% · 2022 1% · 2023 1% · 2024 2% · 2025 2%. 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.
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.
Board chair
S Michael Koh
President & chairperson
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 10 funders to 16 funders, grant income rose $572k → $2.0M.
15 of 43 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 53% 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 STONY BROOK SCHOOL’s funders (the co-funder graph). Top 30 of 43 funders by total. 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 STONY BROOK SCHOOL leans on a few funders — its largest provides 46% of grant income and the top three 80%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
53% 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 STONY BROOK SCHOOL.
Largest funder’s share by year: 2017 76% · 2018 85% · 2019 49% · 2020 60% · 2021 39% · 2022 59% · 2023 61% — 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
46% of THE STONY BROOK SCHOOL's funders are still giving 3 years after their first grant; 60% give in more than one year at all.
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
53% of THE STONY BROOK SCHOOL's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $6.5M that is directly attributable, 50% of it comes from funders outside New York, across 14 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $7.2M arriving through sponsors registered in 13 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.
Organizations like THE STONY BROOK SCHOOL
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 New York
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
90% of spending goes to programs.
Governance
Public support
63%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for THE STONY BROOK SCHOOL: 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.
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 STONY BROOK SCHOOL?
- THE STONY BROOK SCHOOL (New York) receives grants from 43 organizations whose IRS filings report $13,614,842 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($6,261,590). 26 of them have funded it in more than one year, and 53% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does THE STONY BROOK SCHOOL have?
- IRS filings report 43 organizations giving $13,614,842 in grants to THE STONY BROOK SCHOOL, 26 of which have funded it in more than one year.
- Who is the largest funder of THE STONY BROOK SCHOOL?
- FIDELITY INVESTMENTS CHARITABLE GIFT FUND is the largest funder on record, with $6,261,590 in grants. The full list of funders is on this page.
- How can an organization like THE STONY BROOK SCHOOL find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in New York. 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 Stony Brook 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 43 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