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California · Nonprofit

FALLBROOK ANIMAL SANCTUARY

FALLBROOK ANIMAL SANCTUARY (California) receives grants from 16 organizations whose IRS filings report $228,826 to it, the largest being ANTHONY W DE SIO & DELORES J DE SIO FOUNDATION ($110,561). 7 of them have funded it in more than one year.

Revenue FY2025
$562k
Funders on record
16
Grants received
$229k
Net assets
$856k
7/16 repeat funderspeak grant-dependency 9%
01What it does

What Fallbrook Animal Sanctuary does

Mission

To provide food, shelter, and veterinary care for lost, abandoned or surrendered animals

As stated on its FY2025 Form 990.

Program

  1. Adopted out 200+ animals to permanent homes.

    $367,626 spent$426,329 earned by the program
    100% of program spending

The program described on its FY2025 Form 990. Program spending in total: $367,626.

02The organization over time

The organization over time

Each line starts at 100 in 2018, so what you read is the shape rather than the size: 150 means half as much again as 2018, 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 = 20182018 Revenue 100 ($380k) Expenses 100 ($302k) Net assets 100 ($522k)2019 Revenue 70 ($268k) Expenses 105 ($316k) Net assets 72 ($378k)2020 Revenue 103 ($391k) Expenses 87 ($264k) Net assets 90 ($472k)2021 Revenue 134 ($509k) Expenses 82 ($248k) Net assets 134 ($700k)2022 Revenue 94 ($358k) Expenses 109 ($329k) Net assets 123 ($640k)2023 Revenue 133 ($506k) Expenses 138 ($419k) Net assets 138 ($722k)2024 Revenue 141 ($535k) Expenses 192 ($582k) Net assets 159 ($833k)2025 Revenue 148 ($562k) Expenses 178 ($539k) Net assets 164 ($856k)
'18'19'20'21'22'23'24'25
Revenue (148)Expenses (178)Net assets (164)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 2020 to 2021, from $472k to $700k (+48%).

$522k
$378k
$472k
$700k
$640k
$722k
$833k
$856k
'18'19'20'21'22'23'24'25
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.

2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

24% of FALLBROOK ANIMAL SANCTUARY’s revenue is contributions — more earned-revenue than three-quarters of its peers (86% for the typical peer).

This organization
Typical peer · 7,042 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 8 reported years ran a deficit.

$78k
’18
−$48k
’19
$127k
’20
$261k
’21
$29k
’22
$87k
’23
−$47k
’24
$23k
’25
2.7
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.

'18'19'20'21'22'23'24'25
Listed77998886
Joined·+0+2+0+0+0+0+1
No longer listed·0001003
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 2 funders to 3 funders, grant income rose $3k → $14k.

8 of 16 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 36% 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 FALLBROOK ANIMAL SANCTUARY’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

FALLBROOK ANIMAL SANCTUARY leans on a few funders — its largest provides 48% of grant income and the top three 64%; half comes from just 2 funders.

the vertical line marks half of all grant income — 2 funders to its left

47% 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 FALLBROOK ANIMAL SANCTUARY.

48%
largest funder
64%
top three
~4
effective funders

Largest funder’s share by year: 2017 80% · 2018 31% · 2019 64% · 2020 76% · 2021 52% · 2022 42% · 2023 73% — 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

33% of FALLBROOK ANIMAL SANCTUARY's funders are still giving 3 years after their first grant; 44% give in more than one year at all.

first grant+1y+2y+3y+4y+5y

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

FALLBROOK ANIMAL SANCTUARY draws 82% of its grant income from funders outside California, across 6 states in all.

WI
NV
CA
CO
DE
NC

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. $83k 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.

04Its place in the field

Against its field

FALLBROOK ANIMAL SANCTUARY's funding base is broadening — from 2 funders to 3 as grant income climbed.

Operating margin4% · below the median
Months of reserve2.7mo · below the median
Revenue growth (annualized)6% · below the median

this organization peer median middle 50% of peers· 3,693 animals nonprofits $100k–$1M, FY2025

Organizations like FALLBROOK ANIMAL SANCTUARY

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

68% of spending goes to programs.

Program 68%Management 31%Fundraising 1%

Governance

7
board members
100%
independent
–Conflict-of-interest policy✓Whistleblower policy–Document retention✓Board reviewed the 990–Audited financials

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

CA

Screen this organization

A dated, signed PDF of the compliance screen for FALLBROOK ANIMAL SANCTUARY: 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.

A paid feature, included from the $75 plan up. Sign in to download.

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 FALLBROOK ANIMAL SANCTUARY?
FALLBROOK ANIMAL SANCTUARY (California) receives grants from 16 organizations whose IRS filings report $228,826 to it, the largest being ANTHONY W DE SIO & DELORES J DE SIO FOUNDATION ($110,561). 7 of them have funded it in more than one year.
How many funders does FALLBROOK ANIMAL SANCTUARY have?
IRS filings report 16 organizations giving $228,826 in grants to FALLBROOK ANIMAL SANCTUARY, 7 of which have funded it in more than one year.
Who is the largest funder of FALLBROOK ANIMAL SANCTUARY?
ANTHONY W DE SIO & DELORES J DE SIO FOUNDATION is the largest funder on record, with $110,561 in grants. The full list of funders is on this page.
How can an organization like FALLBROOK ANIMAL SANCTUARY 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 Fallbrook Animal Sanctuary →

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2018–2025), and the filings of 16 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