California · Nonprofit
TERRA MARIN SCHOOL
TERRA MARIN SCHOOL (California) receives grants from 7 organizations whose IRS filings report $317,849 to it, the largest being AMERICAN ONLINE GIVING FOUNDATION INC ($147,689). 3 of them have funded it in more than one year, and 97% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $1.5M
- Funders on record
- 7
- Grants received
- $318k
- Net assets
- $99k
What Terra Marin School does
Mission
Our mission is to spark wonder and intellectual curiosity in each child. We achieve this through a purposeful blend of:Engaging academics custom-tailored to each child's abilities, strengths and interests;An unparalleled social-emotional program; andEarth Education, allowing students to learn from our world's best teacher - nature
As stated on its FY2025 Form 990.
Program
Terra Marin School educates, nurtures, and inspires students of diverse backgrounds to achieve their highest academic and creative potential, to embrace ethical values, and to become active contributors to their communities. We achieve this through a purposeful blend of: Engaging academics custom-tailored to each child's abilities, strengths and interests; An unparalleled social-emotional program; Earth Education, allowing students to learn from our world's best teacher - nature; and A dedication to creating multicultural awareness and diversity among our staff and students;
$85,590 spent100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $85,590.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 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 2019 to 2020, from $247k to $682k (+176%).
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.
40% of TERRA MARIN SCHOOL’s revenue is contributions — about as donation-reliant as the typical peer (48% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 7 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
2021 → 2023: the base narrowed from 4 funders to 3 funders, grant income fell $67k → $40k.
6 of 7 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 97% 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 TERRA MARIN SCHOOL’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
TERRA MARIN SCHOOL leans on a few funders — its largest provides 46% of grant income and the top three 89%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
97% 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 TERRA MARIN SCHOOL.
Largest funder’s share by year: 2021 57% · 2022 67% · 2023 85% — 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
97% of TERRA MARIN 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 $10k that is directly attributable, 100% of it comes from funders outside California, across 1 state.
Funder states come from each funder’s own filing. $308k arriving through sponsors registered in 5 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
TERRA MARIN SCHOOL runs a healthier operating margin than three-quarters of the 9,398 education nonprofits its size.
this organization peer median middle 50% of peers· 9,398 education nonprofits $1M–$10M, FY2025
Organizations like TERRA MARIN 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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
8% of spending goes to programs.
Governance
Screen this organization
A dated, signed PDF of the compliance screen for TERRA MARIN 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 TERRA MARIN SCHOOL?
- TERRA MARIN SCHOOL (California) receives grants from 7 organizations whose IRS filings report $317,849 to it, the largest being AMERICAN ONLINE GIVING FOUNDATION INC ($147,689). 3 of them have funded it in more than one year, and 97% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does TERRA MARIN SCHOOL have?
- IRS filings report 7 organizations giving $317,849 in grants to TERRA MARIN SCHOOL, 3 of which have funded it in more than one year.
- Who is the largest funder of TERRA MARIN SCHOOL?
- AMERICAN ONLINE GIVING FOUNDATION INC is the largest funder on record, with $147,689 in grants. The full list of funders is on this page.
- How can an organization like TERRA MARIN SCHOOL find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. 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 Terra Marin School →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2019–2025), 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 14, 2026. What this page cannot tell you · view filing