California · Nonprofit
MT DIABLO EDUCATION FOUNDATION
MT DIABLO EDUCATION FOUNDATION (California) receives grants from 11 organizations whose IRS filings report $258,894 to it, the largest being Dean and Margaret Lesher Foundation ($130,000). 4 of them have funded it in more than one year.
- Revenue FY2025
- $109k
- Funders on record
- 11
- Grants received
- $259k
- Net assets
- $75k
What Mt Diablo Education Foundation does
Mission
Funding programs in Mt. Diablo Unified School District for low-income schools
As stated on its FY2025 Form 990-EZ.
Programs
Overnight outdoor education programs for fifth graders at three Title 1 elementary schools. This included a five-night program at Sempervirens Camp focused on forest science and two three-day programs at Pigeon Point Lighthouse focused on marine science.
$0 spent0% of program spendingHigh school and middle school robotics and engineering programs. This included funding travel expenses for a Title 1 high school robotics teams competition plus purchasing materials and supplies for a middle schools Femineer wearable tech program.
$18,242 spent19% of program spendingTeacher training curriculum and materials and supplies science programs. This includes Growing Healthy Kids garden education program.This program instructs elementary and middle school students in the science of plants and healthy eating in a hands-on farm-to-fork experience.
$2,500 spent3% of program spendingMystery Science Mosa Mack and Gizmos supplemental science programs provided for all elementary middle and high schools in Mt. Diablo Unified School District
$27,500 spentof which $27,500 as grants29% of program spendingAll-day marine science field trips to Pigeon Point lighthouse in Pescadero for fourth and fifth graders at three Title 1 elementary schools
$10,150 spentof which $10,150 as grants11% of program spendingA one-month cultural ballet folklorico dance program provided to two Title 1 elementary schools
$5,000 spentof which $5,000 as grants5% of program spendingDiablo Ballet PEEK Outreach emotional well-being movement program provided to two Title 1 elementary schools
$10,000 spentof which $10,000 as grants10% of program spendingCultural performing arts assemblies staged at three Title 1 elementary schools
$20,000 spentof which $20,000 as grants21% of program spendingArt in Action
$1,920 spentof which $1,920 as grants2% of program spending
The 9 programs described on its FY2024 Form 990-EZ. Program spending in total: $95,312.
The organization over time
Each line starts at 100 in 2022, so what you read is the shape rather than the size: 150 means half as much again as 2022, 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 2024 to 2025, from $118k to $75k (−37%).
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.
100% of MT DIABLO EDUCATION FOUNDATION’s revenue is contributions — more reliant on donations than three-quarters of its peers (57% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 4 reported years ran a deficit.
Who funds it, year by year
2018 → 2023: the base broadened from 1 funder to 4 funders, grant income rose $0 → $48k.
5 of 11 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 19% 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 MT DIABLO EDUCATION FOUNDATION’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
MT DIABLO EDUCATION FOUNDATION leans on a few funders — its largest provides 50% of grant income and the top three 78%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
46% 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 MT DIABLO EDUCATION FOUNDATION.
Largest funder’s share by year: 2019 100% · 2020 100% · 2021 98% · 2022 99% · 2023 74% — 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 MT DIABLO EDUCATION FOUNDATION's funders are still giving 2 years after their first grant; 36% 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
96% of MT DIABLO EDUCATION FOUNDATION's grant income comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $48k 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
MT DIABLO EDUCATION FOUNDATION's funding base is broadening — from 1 funders to 4 as grant income climbed.
this organization peer median middle 50% of peers· 16,849 education nonprofits $100k–$1M, FY2025
Organizations like MT DIABLO EDUCATION FOUNDATION
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.
Public support
72%
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 MT DIABLO EDUCATION FOUNDATION: 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 MT DIABLO EDUCATION FOUNDATION?
- MT DIABLO EDUCATION FOUNDATION (California) receives grants from 11 organizations whose IRS filings report $258,894 to it, the largest being Dean and Margaret Lesher Foundation ($130,000). 4 of them have funded it in more than one year.
- How many funders does MT DIABLO EDUCATION FOUNDATION have?
- IRS filings report 11 organizations giving $258,894 in grants to MT DIABLO EDUCATION FOUNDATION, 4 of which have funded it in more than one year.
- Who is the largest funder of MT DIABLO EDUCATION FOUNDATION?
- Dean and Margaret Lesher Foundation is the largest funder on record, with $130,000 in grants. The full list of funders is on this page.
- How can an organization like MT DIABLO EDUCATION FOUNDATION 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 Mt Diablo Education →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2022–2025), 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