New York · Nonprofit
STEM ALLIANCE OF LARCHMONT- MAMARONECK INC
STEM ALLIANCE OF LARCHMONT- MAMARONECK INC (New York) receives grants from 39 organizations whose IRS filings report $3,712,312 to it, the largest being Gloria and Richard Kushel Foundation ($1,178,895). 21 of them have funded it in more than one year.
- Revenue FY2024
- $2.9M
- Funders on record
- 39
- Grants received
- $3.7M
- Net assets
- $586k
What STEM Alliance of Larchmont- Mamaroneck Inc does
Mission
Through a combination of stem enrichment, digital inclusion, and summer learning programs, the stem alliance advances equal opportunity in education. Our evidence-based model has 5 differentiating factors.high quality: our hands-on, research driven curriculum meets the highest standards through regular evaluation and iteration.strategic partnerships: we partner with local nonprofits that have trusted relationships with potential participants and host all programs. Dedicated advocacy: we shape statewide priorities across our work streams as members of regional, state and federal networks.unbounded innovation: we listen to the needs of community members and respond with relevant programming, using data to evolve and improve our work.operational excellence: we engage in strategic, long-term planning, with rigorous cash management, mission-aligned financial and staffing systems and inclusive talent practices to ensure effective administration of complex contracts.
As stated on its FY2024 Form 990.
Programs
Digital equity: the stem alliance's digital pathways initiative closes the digital divide by connecting low- and moderate-income residents across westchester county and new york city to computers, internet access, and tech skills training. The stem alliance is a regional leader in digital equity and a trusted partner to state and local governments in administering these programs. The need is acute: among those served, 93% need a device, and 84% of those have no computer in the home at all, while 71% need basic computer training and 64% of those had never received any. This is not a temporary or pandemic-era problem. It is a persistent structural barrier that locks residents out of the basic digital skills that 92% of jobs now require, making full participation in a digitally driven economy impossible without intervention. Since 2020, the initiative has distributed more than 5,200 computing devices, connected over 2,300 households to the internet, and screened more than 5,500 residents for digital need.the results establish a clear pathway from digital access to economic opportunity. Among 3,855 clients surveyed before and after completing the program's 15-hour tech education…
$1,149,108 spentof which $12,650 as grants$678,732 earned by the program48% of program spendingStem education and equity: the stem alliance's stem education and equity programs bridge systemic gaps in stem learning through hands-on, standards-aligned programming across all stem disciplines. The need is urgent: women make up only 35% of the u.s. Stem workforce and people of color only 10%, while more than half of gen z students report limited exposure to career-focused stem. In the 2024-2025 year, the stem alliance delivered more than 190 high-quality programs, totaling over 1,000 participant hours, in partnership with 50 local organizations. This work served more than 4,300 students from pre-k through high school, with 60% of programming reaching racially diverse communities. The impact is measurable: across student surveys, participants reported marked gains in stem curiosity, confidence, and identity after as few as eight hours of programming.equity is built into the program's design. Classes, workshops, and pop-ups are often organized for affinity groups, such as all-girls cohorts, creating safe and welcoming environments for underserved students. Reduced and fully waived tuition ensures that economic need is never a barrier to participation. The stem alliance also…
$641,825 spent27% of program spendingCo-op summer enrichment: now in its sixtieth year, co-op summer enrichment is the stem alliance's response to summer learning loss, the decline in reading and math skills that disproportionately affects children from low-income households and widens the achievement gap year after year. As a five week, full day program, co-op delivers high-quality, hands-on stem learning to more than 250 students, blending rigorous academic enrichment with the rituals that make summer meaningful: color wars, swim instruction, and field trips to stem institutions such as the intrepid museum and the new york hall of science. The combination is deliberate. Engaging programming sustains the consistent attendance through which co-op slows summer slide, supports academic growth and keeps students on track for the year ahead.the program's outcomes demonstrate its effectiveness. In 2025, 83% of campers held or improved their reading scores, 91% maintained consistent attendance, and 100% of educators reported that co-op helped students meet state and district benchmarks. For the majority of families served, the program fills a critical gap: 74% of campers had no summer alternative, and 63% reported that…
$598,264 spent25% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $2,389,197.
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 2022 to 2023, from $818k to $1.6M (+101%).
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 3% · 2022 4% · 2023 15% · 2024 23%. Grants only. Government contracts and fees sit inside program revenue.
76% of STEM ALLIANCE OF LARCHMONT- MAMARONECK INC’s revenue is contributions — about as donation-reliant as the typical peer (82% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 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
2017 → 2023: the base broadened from 2 funders to 19 funders, grant income rose $3k → $674k.
8 of 39 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 11% 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 STEM ALLIANCE OF LARCHMONT- MAMARONECK INC’s funders (the co-funder graph). Top 30 of 39 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
STEM ALLIANCE OF LARCHMONT- MAMARONECK INC leans on a few funders — its largest provides 32% of grant income and the top three 62%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
40% 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 STEM ALLIANCE OF LARCHMONT- MAMARONECK INC.
Largest funder’s share by year: 2017 80% · 2019 89% · 2020 51% · 2021 42% · 2022 39% · 2023 25% — 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
36% of STEM ALLIANCE OF LARCHMONT- MAMARONECK INC's funders are still giving 3 years after their first grant; 54% 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
83% of STEM ALLIANCE OF LARCHMONT- MAMARONECK INC's grant income comes from New York funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $400k arriving through sponsors registered in 7 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
STEM ALLIANCE OF LARCHMONT- MAMARONECK INC has grown faster than three-quarters of the 1,928 youth development nonprofits its size.
this organization peer median middle 50% of peers· 1,928 youth development nonprofits $1M–$10M, FY2024
Organizations like STEM ALLIANCE OF LARCHMONT- MAMARONECK 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 New York
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
83% of spending goes to programs.
Governance
Public support
73%
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 STEM ALLIANCE OF LARCHMONT- MAMARONECK 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 STEM ALLIANCE OF LARCHMONT- MAMARONECK INC?
- STEM ALLIANCE OF LARCHMONT- MAMARONECK INC (New York) receives grants from 39 organizations whose IRS filings report $3,712,312 to it, the largest being Gloria and Richard Kushel Foundation ($1,178,895). 21 of them have funded it in more than one year.
- How many funders does STEM ALLIANCE OF LARCHMONT- MAMARONECK INC have?
- IRS filings report 39 organizations giving $3,712,312 in grants to STEM ALLIANCE OF LARCHMONT- MAMARONECK INC, 21 of which have funded it in more than one year.
- Who is the largest funder of STEM ALLIANCE OF LARCHMONT- MAMARONECK INC?
- Gloria and Richard Kushel Foundation is the largest funder on record, with $1,178,895 in grants. The full list of funders is on this page.
- How can an organization like STEM ALLIANCE OF LARCHMONT- MAMARONECK INC 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 STEM Alliance of Larchmont- Mamaroneck →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 39 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