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Florida · Nonprofit

LEESBURG HUMANE SOCIETY Leesburg Humane society

LEESBURG HUMANE SOCIETY Leesburg Humane society (Florida) receives grants from 11 organizations whose IRS filings report $1,418,737 to it, the largest being STANLEY & MILDRED ZAMO FDN (1071) ($1,143,413). 5 of them have funded it in more than one year.

Revenue FY2025
$604k
Funders on record
11
Grants received
$1.4M
Net assets
$3.0M
5/11 repeat funderspeak grant-dependency 98%
01What it does

What LEESBURG HUMANE SOCIETY Leesburg Humane society does

Mission

Leesburg Humane Society is a no-kill, non-profit, organization dedicated to rescuing and caring for abandoned pets and placing them in loving homes.

As stated on its FY2025 Form 990.

Programs

  1. The organization's primary mission is to provide care, shelter, and adoption services for homeless and displaced animals. During the tax year, the organization rescued, sheltered, and facilitated the adoption of companion animals within the local community. Services included intake of stray and surrendered animals, provision of veterinary care, and coordination of adoption placements. The organization also engaged in community outreach efforts to promote responsible pet ownership and support animal welfare initiatives. The organization anticipates continuing these programs in future years.

    $392,668 spent$174,747 earned by the program
    100% of program spending
  2. Other program services, not described on the e-filed return.

    $0 spent
    0% of program spending

The 2 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $392,668.

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 ($299k) Expenses 100 ($206k) Net assets 100 ($2.0M)2018 Revenue 132 ($394k) Expenses 104 ($214k) Net assets 115 ($2.3M)2020 Revenue 118 ($352k) Expenses 104 ($214k) Net assets 146 ($2.9M)2021 Revenue 219 ($655k) Expenses 127 ($263k) Net assets 165 ($3.3M)2022 Revenue 349 ($1.0M) Expenses 224 ($463k) Net assets 194 ($3.9M)2023 Revenue 169 ($506k) Expenses 346 ($714k) Net assets 184 ($3.7M)2024 Revenue 174 ($520k) Expenses 350 ($722k) Net assets 197 ($4.0M)2025 Revenue 202 ($604k) Expenses 401 ($827k) Net assets 147 ($3.0M)
'17'18'20'21'22'23'24'25
Revenue (202)Expenses (401)Net assets (147)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 2024 to 2025, from $4.0M to $3.0M (−25%).

$2.0M
$2.3M
$2.9M
$3.3M
$3.9M
$3.7M
$4.0M
$3.0M
'17'18'20'21'22'23'24'25
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.

2017
2018
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

71% of LEESBURG HUMANE SOCIETY Leesburg Humane society’s revenue is contributions — about as donation-reliant as the typical peer (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. 3 of the last 8 reported years ran a deficit.

$93k
’17
$180k
’18
$137k
’20
$392k
’21
$582k
’22
−$209k
’23
−$203k
’24
−$223k
’25
1.6
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.

Chief executive

Debbie Butler

Executive director

As listed on its FY2025 Form 990.

'17'18'20'21'22'23'24'25
Listed55566665
Joined·+1·+5+0+2+3+0
No longer listed·1·40231
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 1 funder to 4 funders, grant income rose $11k → $17k.

3 of 11 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 5% 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 LEESBURG HUMANE SOCIETY Leesburg Humane society’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

LEESBURG HUMANE SOCIETY Leesburg Humane society leans on a few funders — its largest provides 81% of grant income and the top three 95%; half comes from just 1 funder.

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

81%
largest funder
95%
top three
~2
effective funders

Largest funder’s share by year: 2017 100% · 2018 77% · 2019 67% · 2020 44% · 2021 64% · 2022 96% · 2023 59% — 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

67% of LEESBURG HUMANE SOCIETY Leesburg Humane society's funders are still giving 3 years after their first grant; 45% give in more than one year at all.

first grant+1y+2y+3y

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

100% of LEESBURG HUMANE SOCIETY Leesburg Humane society's grant income comes from Florida funders.

IL
CO
FL

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

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

Funder states come from each funder’s own filing. $77k arriving through sponsors registered in 3 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

LEESBURG HUMANE SOCIETY Leesburg Humane society has grown faster than half of the 3,693 animals nonprofits its size.

Operating margin−37% · bottom quartile
Months of reserve1.6mo · bottom quartile
Revenue growth (annualized)9% · above the median

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

Organizations like LEESBURG HUMANE SOCIETY Leesburg Humane society

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 Florida

Nationally

05Profile & governance

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

Where the money goes

47% of spending goes to programs.

Program 47%Management 53%Fundraising 0%

Governance

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

Public support

37%

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 LEESBURG HUMANE SOCIETY Leesburg Humane society: 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 LEESBURG HUMANE SOCIETY Leesburg Humane society?
LEESBURG HUMANE SOCIETY Leesburg Humane society (Florida) receives grants from 11 organizations whose IRS filings report $1,418,737 to it, the largest being STANLEY & MILDRED ZAMO FDN (1071) ($1,143,413). 5 of them have funded it in more than one year.
How many funders does LEESBURG HUMANE SOCIETY Leesburg Humane society have?
IRS filings report 11 organizations giving $1,418,737 in grants to LEESBURG HUMANE SOCIETY Leesburg Humane society, 5 of which have funded it in more than one year.
Who is the largest funder of LEESBURG HUMANE SOCIETY Leesburg Humane society?
STANLEY & MILDRED ZAMO FDN (1071) is the largest funder on record, with $1,143,413 in grants. The full list of funders is on this page.
How can an organization like LEESBURG HUMANE SOCIETY Leesburg Humane society find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Florida. 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 LEESBURG HUMANE SOCIETY Leesburg Humane society →

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), 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