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California · Nonprofit

FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES

FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES (California) receives grants from 5 organizations whose IRS filings report $164,124 to it, the largest being THE SASS-ARENA FOUNDATION FOR MEDICAL RESEARCH INC(FKA SASS FDN FOR MED RES) ($100,000). 4 of them have funded it in more than one year.

Revenue FY2024
$905k
Funders on record
5
Grants received
$164k
Net assets
$2.7M
4/5 repeat funderspeak grant-dependency 7%
01What it does

What Foundation for Primary Immunodeficiency Diseases does

Mission

To support education, diagnosis,treatment,and research in primary immunodeficiency diseases

As stated on its FY2024 Form 990.

Program

  1. The organization supports education, diagnosis, treatment, and research in primary immunodeficiency diseases.

    $274,878 spent$333,597 earned by the program
    100% of program spending

The program described on its FY2024 Form 990. Program spending in total: $274,878.

02The organization over time

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.

100 = 20172017 Revenue 100 ($421k) Expenses 100 ($234k) Net assets 100 ($1.4M)2018 Revenue 114 ($480k) Expenses 96 ($225k) Net assets 119 ($1.6M)2019 Revenue 101 ($425k) Expenses 107 ($250k) Net assets 131 ($1.8M)2020 Revenue 53 ($225k) Expenses 39 ($91k) Net assets 142 ($2.0M)2021 Revenue 95 ($398k) Expenses 79 ($185k) Net assets 148 ($2.0M)2022 Revenue 116 ($489k) Expenses 137 ($320k) Net assets 160 ($2.2M)2023 Revenue 112 ($471k) Expenses 134 ($313k) Net assets 154 ($2.1M)2024 Revenue 215 ($905k) Expenses 122 ($287k) Net assets 198 ($2.7M)
'17'18'19'20'21'22'23'24
Revenue (215)Expenses (122)Net assets (198)Peer revenue range

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 $2.1M to $2.7M (+29%).

$1.4M
$1.6M
$1.8M
$2.0M
$2.1M
$2.2M
$2.1M
$2.7M
'17'18'19'20'21'22'23'24
Total assetsTotal liabilities

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.

2017
2018
2019
2020
2021
2022
2023
2024
ContributionsProgram revenueInvestmentOther

0% of FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES’s revenue is contributions — more earned-revenue than three-quarters of its peers (82% for the typical peer).

This organization
Typical peer · 14,893 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 8 reported years ran a deficit.

$187k
’17
$255k
’18
$175k
’19
$134k
’20
$213k
’21
$169k
’22
$158k
’23
$619k
’24
21
months of
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.

'17'18'19'20'21'22'23'24
Listed33333333
Joined·+0+0+0+0+0+0+0
No longer listed·0000000
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 2 funders to 4 funders, grant income rose $15k → $31k.

1 of 5 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 0% 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 FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES’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

FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES leans on a few funders — its largest provides 61% of grant income and the top three 99%; half comes from just 1 funder.

the vertical line marks half of all grant income — 1 funder to its left

61% 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 FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES.

61%
largest funder
99%
top three
~2
effective funders

Largest funder’s share by year: 2017 67% · 2018 67% · 2019 91% · 2020 91% · 2021 100% · 2022 48% · 2023 81% — 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

FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES draws 76% of its grant income from funders outside California, across 4 states in all.

NY
NV
CA
DE

In-state vs out-of-state, by year

’17
’18
’19
’20
’21
’22
’23
California out of state home

Funder states come from each funder’s own filing. $124 arriving through sponsors registered in 1 state 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.

04Its place in the field

Against its field

FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES runs a healthier operating margin than three-quarters of the 13,754 health nonprofits its size.

Operating margin68% · top quartile
Months of reserve20.8mo · top quartile
Revenue growth (annualized)12% · above the median

this organization peer median middle 50% of peers· 13,754 health nonprofits $100k–$1M, FY2024

Organizations like FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES

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

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Where the money goes

96% of spending goes to programs.

Program 96%Management 4%Fundraising 0%

Governance

3
board members
0%
independent
–Conflict-of-interest policy–Whistleblower policy✓Document retention✓Board reviewed the 990–Audited financials

Public support

51%

Share of support from the public (Schedule A) — the basis for its public-charity status.

Screen this organization

A dated, signed PDF of the compliance screen for FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES: 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.

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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 FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES?
FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES (California) receives grants from 5 organizations whose IRS filings report $164,124 to it, the largest being THE SASS-ARENA FOUNDATION FOR MEDICAL RESEARCH INC(FKA SASS FDN FOR MED RES) ($100,000). 4 of them have funded it in more than one year.
How many funders does FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES have?
IRS filings report 5 organizations giving $164,124 in grants to FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES, 4 of which have funded it in more than one year.
Who is the largest funder of FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES?
THE SASS-ARENA FOUNDATION FOR MEDICAL RESEARCH INC(FKA SASS FDN FOR MED RES) is the largest funder on record, with $100,000 in grants. The full list of funders is on this page.
How can an organization like FOUNDATION FOR PRIMARY IMMUNODEFICIENCY DISEASES 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 5 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