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Wisconsin · Nonprofit

HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC

HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC (Wisconsin) receives grants from 79 organizations whose IRS filings report $1,907,717 to it, the largest being AMERICAN ONLINE GIVING FOUNDATION INC ($239,329). 48 of them have funded it in more than one year.

Revenue FY2025
$6.1M
Funders on record
79
Grants received
$1.9M
Net assets
$17M
48/79 repeat funderspeak grant-dependency 6%
01What it does

What Humane Animal Welfare Society of Waukesha County Inc does

Mission

The humane animal welfare society of waukesha county leads the community in animal welfare and assures sanctuary for animals in need.

As stated on its FY2025 Form 990.

Programs

  1. Spay/neuter clinic surgeries: 9,811 including 2,011 community cats and 3,245 procedures performed for the public in conjunction with haws' wellness clinic.4504 animals adopted, transferred or returned, including 132 community cats. Animal rescue went on 555 calls for strays/wildlife.behavior department training programs - 468 dogs and their people attended classes, 502 shelter dogs "graduated" from the k9 task force.kern funds supported community animals with $14,265 in funds, and annie's fund supported alumni requiring medical assistance with $29,730.

    $3,184,392 spent$1,617,241 earned by the program
    79% of program spending
  2. Over 420 students and teachers attended field trips to the schallock center for animals. The education department hosted more than 8400 individuals in their programs. 1,075 students attended summer camp.

    $864,416 spent$394,126 earned by the program
    21% of program spending

The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $4,048,808.

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 ($2.2M) Expenses 100 ($2.5M) Net assets 100 ($8.1M)2018 Revenue 118 ($2.6M) Expenses 114 ($2.9M) Net assets 99 ($8.0M)2019 Revenue 159 ($3.5M) Expenses 131 ($3.3M) Net assets 101 ($8.2M)2020 Revenue 250 ($5.4M) Expenses 138 ($3.5M) Net assets 125 ($10M)2021 Revenue 215 ($4.7M) Expenses 142 ($3.6M) Net assets 159 ($13M)2022 Revenue 194 ($4.2M) Expenses 167 ($4.2M) Net assets 144 ($12M)2023 Revenue 269 ($5.8M) Expenses 183 ($4.6M) Net assets 165 ($13M)2024 Revenue 266 ($5.8M) Expenses 195 ($4.9M) Net assets 187 ($15M)2025 Revenue 283 ($6.1M) Expenses 211 ($5.3M) Net assets 207 ($17M)
'17'18'19'20'21'22'23'24'25
Revenue (283)Expenses (211)Net assets (207)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 $10M to $13M (+27%).

$8.3M
$8.2M
$8.4M
$10M
$13M
$12M
$14M
$16M
$17M
'17'18'19'20'21'22'23'24'25
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.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

Government-grant reliance: 2020 7%. Grants only. Government contracts and fees sit inside program revenue.

62% of HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC’s revenue is contributions — about as donation-reliant as the typical peer (74% for the typical peer).

This organization
Typical peer · 1,657 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.

−$345k
’17
−$304k
’18
$167k
’19
$2.0M
’20
$1.1M
’21
$2k
’22
$1.2M
’23
$880k
’24
$826k
’25
1.1
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

Maggie Tate-Tachtmann

Executive director

As listed on its FY2025 Form 990.

The chief executive listed changed between the FY2024 and FY2025 filings.

'17'18'19'20'21'22'23'24'25
Listed141715151615171821
Joined·+6+2+4+1+2+2+5+5
No longer listed·34403042
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 11 funders to 36 funders, grant income rose $57k → $348k.

16 of 79 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 41% 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 HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC’s funders (the co-funder graph). Top 30 of 79 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

HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC has a broad base — no single funder exceeds 13% of grant income, and it takes 6 funders to reach half.

the vertical line marks half of all grant income — 6 funders to its left

60% 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 HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC.

13%
largest funder
34%
top three
~17
effective funders

Largest funder’s share by year: 2017 31% · 2018 33% · 2019 47% · 2020 50% · 2021 26% · 2022 15% · 2023 14% — 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

40% of HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC's funders are still giving 3 years after their first grant; 61% give in more than one year at all.

first grant+1y+2y+3y+4y+5y+6y

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

69% of HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC's grant income comes from Wisconsin funders.

WA
MN
IL
WI
MI
NY
OH
NJ
CT
CA
UT
CO
MD
DE
AZ
TN
NC
SC
DC
GA
TX

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

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

Funder states come from each funder’s own filing. $787k arriving through sponsors registered in 12 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

HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC runs a healthier operating margin than half of the 717 animals nonprofits its size.

Operating margin13% · above the median
Months of reserve1.1mo · bottom quartile
Revenue growth (annualized)14% · above the median

this organization peer median middle 50% of peers· 717 animals nonprofits $1M–$10M, FY2025

Organizations like HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY 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 Wisconsin

Nationally

05Profile & governance

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

Where the money goes

76% of spending goes to programs.

Program 76%Management 12%Fundraising 12%

Governance

14
board members
100%
independent
✓Conflict-of-interest policy✓Whistleblower policy✓Document retention✓Board reviewed the 990✓Audited financials

Public support

81%

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

Footprint & structure

Files a return copy in 1 state

WI

Screen this organization

A dated, signed PDF of the compliance screen for HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY 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.

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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 HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC?
HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC (Wisconsin) receives grants from 79 organizations whose IRS filings report $1,907,717 to it, the largest being AMERICAN ONLINE GIVING FOUNDATION INC ($239,329). 48 of them have funded it in more than one year.
How many funders does HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC have?
IRS filings report 79 organizations giving $1,907,717 in grants to HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC, 48 of which have funded it in more than one year.
Who is the largest funder of HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC?
AMERICAN ONLINE GIVING FOUNDATION INC is the largest funder on record, with $239,329 in grants. The full list of funders is on this page.
How can an organization like HUMANE ANIMAL WELFARE SOCIETY OF WAUKESHA COUNTY INC find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Wisconsin. 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 Humane Animal Welfare Society of Waukesha County →

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 79 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