Massachusetts · Nonprofit
DEXTER SOUTHFIELD INC
DEXTER SOUTHFIELD INC (Massachusetts) receives grants from 69 organizations whose IRS filings report $14,048,218 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($7,393,598). 47 of them have funded it in more than one year, and 88% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $85M
- Funders on record
- 69
- Grants received
- $14M
- Net assets
- $128M
What Dexter Southfield Inc does
Mission
Dexter southfield school helps boys and girls develop their individualtalents and build an ethical foundation for life. Students learn to lead with confidence, serve with compassion, and live by the motto, "our best today, better tomorrow."
As stated on its FY2025 Form 990.
Programs
The school provides elementary and secondary college preparatory education to boys and girls in grades pre-kindergarten through 12.
$45,509,695 spent$62,140,256 earned by the program82% of program spendingThe school provides students aid in the form of grants for qualifying students who would otherwise be unable to attend the school.
$7,761,352 spentof which $7,761,352 as grants14% of program spendingThe school provides services to the community through its summer day camps and other educational outreach programs.
$2,017,060 spent$2,561,201 earned by the program4% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $55,288,107.
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. 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 2023 to 2024, from $143M to $169M (+18%).
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.
9% of DEXTER SOUTHFIELD INC’s revenue is contributions — about as donation-reliant as the typical peer (23% for the typical peer).
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.
Who funds it, year by year
2017 → 2023: the base broadened from 14 funders to 38 funders, grant income rose $979k → $1.8M.
21 of 69 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 88% 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 DEXTER SOUTHFIELD INC’s funders (the co-funder graph). Top 30 of 69 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
DEXTER SOUTHFIELD INC leans on a few funders — its largest provides 53% of grant income and the top three 68%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
88% 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 DEXTER SOUTHFIELD INC.
Largest funder’s share by year: 2017 27% · 2018 37% · 2019 56% · 2020 26% · 2021 56% · 2022 40% · 2023 52% — 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.
How long its funders stay
46% of DEXTER SOUTHFIELD INC's funders are still giving 3 years after their first grant; 68% 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
88% of DEXTER SOUTHFIELD INC'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 $1.7M that is directly attributable, 81% of it comes from funders outside Massachusetts, across 15 states.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $12M 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.
Against its field
DEXTER SOUTHFIELD INC runs a healthier operating margin than three-quarters of the 3,794 education nonprofits its size.
this organization peer median middle 50% of peers· 3,794 education nonprofits $10M–$100M, FY2025
Government funding DEXTER SOUTHFIELD INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $19k on record.
- (NN) INFRASTRUCTURE:$19k
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 DEXTER SOUTHFIELD 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 Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
85% of spending goes to programs.
Governance
Public support
80%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Part of a family of 1 related entity
- Thirty Goddard Circle LLC · disregarded
Screen this organization
A dated, signed PDF of the compliance screen for DEXTER SOUTHFIELD 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.
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 DEXTER SOUTHFIELD INC?
- DEXTER SOUTHFIELD INC (Massachusetts) receives grants from 69 organizations whose IRS filings report $14,048,218 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($7,393,598). 47 of them have funded it in more than one year, and 88% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does DEXTER SOUTHFIELD INC have?
- IRS filings report 69 organizations giving $14,048,218 in grants to DEXTER SOUTHFIELD INC, 47 of which have funded it in more than one year.
- Who is the largest funder of DEXTER SOUTHFIELD INC?
- FIDELITY INVESTMENTS CHARITABLE GIFT FUND is the largest funder on record, with $7,393,598 in grants. The full list of funders is on this page.
- How can an organization like DEXTER SOUTHFIELD INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. 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 Dexter Southfield →
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 69 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