Missouri · Nonprofit
CHESTERFIELD MONTESSORI SCHOOL
CHESTERFIELD MONTESSORI SCHOOL (Missouri) receives grants from 7 organizations whose IRS filings report $72,573 to it, the largest being THE BLACKBAUD GIVING FUND ($30,870). 3 of them have funded it in more than one year, and 67% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $2.1M
- Funders on record
- 7
- Grants received
- $73k
- Net assets
- $337k
What Chesterfield Montessori School does
Mission
Chesterfield Montessori School offers an authentic Montessori education that honors children's individuality. Our peaceful environment and compassionate staff nurture respect for self and others, foster a strong sense of community, and stimulate independent thinking. Students carry with them a solid record of academic achievement, a belief in the dignity of work, and a sense of responsibility for their own development as happy and productive human beings.
As stated on its FY2025 Form 990.
Program
The operation of private montessori elementary school.
$1,873,611 spent$1,965,896 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $1,873,611.
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $2.3M to $4.8M (+106%).
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.
3% of CHESTERFIELD MONTESSORI SCHOOL’s revenue is contributions — more earned-revenue than three-quarters of its peers (48% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 5 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
Tom Schafbuch
Chairman
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2022: the base held at 2 funders, grant income fell $20k → $15k.
5 of 7 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 67% 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 CHESTERFIELD MONTESSORI SCHOOL’s funders (the co-funder graph). Top 6 of 7 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
CHESTERFIELD MONTESSORI SCHOOL leans on a few funders — its largest provides 43% of grant income and the top three 77%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
67% 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 CHESTERFIELD MONTESSORI SCHOOL.
Largest funder’s share by year: 2017 77% · 2018 100% · 2019 100% · 2020 100% · 2021 100% · 2022 100% — growing more concentrated.
“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.
Where its funders are
67% of CHESTERFIELD MONTESSORI 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 $24k that is directly attributable, 63% of it comes from funders outside Missouri, across 2 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $49k arriving through sponsors registered in 4 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.
Against its field
CHESTERFIELD MONTESSORI SCHOOL's revenue fell 24% between 2021 and 2025.
this organization peer median middle 50% of peers· 9,615 education nonprofits $1M–$10M, FY2025
Organizations like CHESTERFIELD MONTESSORI 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 Missouri
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
77% of spending goes to programs.
Governance
Screen this organization
A dated, signed PDF of the compliance screen for CHESTERFIELD MONTESSORI 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 CHESTERFIELD MONTESSORI SCHOOL?
- CHESTERFIELD MONTESSORI SCHOOL (Missouri) receives grants from 7 organizations whose IRS filings report $72,573 to it, the largest being THE BLACKBAUD GIVING FUND ($30,870). 3 of them have funded it in more than one year, and 67% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does CHESTERFIELD MONTESSORI SCHOOL have?
- IRS filings report 7 organizations giving $72,573 in grants to CHESTERFIELD MONTESSORI SCHOOL, 3 of which have funded it in more than one year.
- Who is the largest funder of CHESTERFIELD MONTESSORI SCHOOL?
- THE BLACKBAUD GIVING FUND is the largest funder on record, with $30,870 in grants. The full list of funders is on this page.
- How can an organization like CHESTERFIELD MONTESSORI SCHOOL find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Missouri. 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 Chesterfield Montessori School →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2021–2025), and the filings of 7 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 22, 2026. What this page cannot tell you · view filing