California · Nonprofit
NAMI San Mateo County
NAMI San Mateo County (California) receives grants from 28 organizations whose IRS filings report $956,571 to it, the largest being Schwab Charitable Fund ($154,709). 14 of them have funded it in more than one year, and 68% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
Three funders worth looking at
Grantmakers with no record of funding this organization, ranked by how strongly the co-funder graph and the mission embeddings agree. The evidence is in section 03.
- The San Bruno Community Foundationshared funderslocalportfolio match
- Community Foundation of San Carloslocalportfolio match
- The Palo Alto Community Fundshared funders
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.
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: 2018 21% · 2020 0% · 2021 5% · 2023 38% · 2024 76%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 8 reported years ran a deficit.
reserve
Who funds it, year by year
2017 → 2023: the base broadened from 2 funders to 11 funders, grant income rose $10k → $130k.
11 of 28 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 68% 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 NAMI San Mateo County’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
NAMI San Mateo County has a broad base — no single funder exceeds 16% of grant income, and it takes 4 funders to reach half.
the vertical line marks half of all grant income — 4 funders to its left
84% 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 NAMI San Mateo County.
Largest funder’s share by year: 2017 91% · 2018 44% · 2019 48% · 2020 22% · 2021 22% · 2022 36% · 2023 24% — 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
42% of NAMI San Mateo County's funders are still giving 3 years after their first grant; 50% 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
68% of NAMI San Mateo County'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 $309k that is directly attributable, 85% of it comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $647k arriving through sponsors registered in 10 statesis 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.
Funders to approach
Grantmakers that don’t fund you yet, surfaced two ways: they back organizations that share your funders, or their grantees resemble your mission. The ones both signals agree on come first. Your 28 funders put you under-funded among the 400 organizations that share them.
- The San Bruno Community Foundationshared funderslocalportfolio matchCA · backs 31 organizations that share your funders · funds 50 organizations near you · its grantees resemble your mission
- Community Foundation of San Carloslocalportfolio matchCA · funds 46 organizations near you · its grantees resemble your mission
- The Palo Alto Community Fundshared fundersCA · backs 79 organizations that share your funders
- NAMI Californiaportfolio matchits grantees resemble your mission
- Jh Robbins Foundationportfolio matchits grantees resemble your mission
- Center for Volunteer & Nonprofit Leadershipportfolio matchits grantees resemble your mission
- Monterra Credit Unionportfolio matchits grantees resemble your mission
- Mental Health America Incportfolio matchits grantees resemble your mission
- The Callison Foundationportfolio matchits grantees resemble your mission
- Caroline's Nonprofit Thrift Shopportfolio matchits grantees resemble your mission
- The Franklin and Catherine Johnson Foundationshared fundersCA · backs 23 organizations that share your funders
- Sutter Bay Hospitalsshared fundersCA · backs 62 organizations that share your funders
From the co-funder graph (funders backing at least two comparable organizations, shrunk for grantee count, donor-advised and mega-funds excluded) and the universe embeddings. A research starting point; overlap is association, not a guarantee of fit.
Organizations like NAMI San Mateo County
Nonprofits whose mission and program text most resemble this one, by semantic similarity over the universe of 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
78% of spending goes to programs.
Governance
Public support
100%
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 NAMI San Mateo County: 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. How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds NAMI San Mateo County?
- NAMI San Mateo County (California) receives grants from 28 organizations whose IRS filings report $956,571 to it, the largest being Schwab Charitable Fund ($154,709). 14 of them have funded it in more than one year, and 68% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does NAMI San Mateo County have?
- IRS filings report 28 organizations giving $956,571 in grants to NAMI San Mateo County, 14 of which have funded it in more than one year.
- Who is the largest funder of NAMI San Mateo County?
- Schwab Charitable Fund is the largest funder on record, with $154,709 in grants. The full list of funders is on this page.
- How can an organization like NAMI San Mateo County 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.
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 28funders 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 August 27, 2026. What this page cannot tell you · view filing