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Texas · Nonprofit

WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC

WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC (Texas) receives grants from 4 organizations whose IRS filings report $145,083 to it, the largest being HARRY L WILLETT FOUNDATION C O BOYD RYAN ($112,000). 2 of them have funded it in more than one year.

Revenue FY2025
$4.4M
Funders on record
4
Grants received
$145k
Net assets
$7.4M
2/4 repeat funderspeak grant-dependency 3%
01What it does

What Wimberley Emergency Medical Service Systems Inc does

Mission

Dedicated to serving the people in wimberley and surrounding communities with the finest in emergency medical care.

As stated on its FY2025 Form 990.

Program

  1. Wimberley ems provides 911 emergency medical response and non-emergency transport to wimberley and the surrounding wimberley valley - 150 square miles of western hays county which includes the communities of wimberley, woodcreek and portions of driftwood and rural san marcos. We serve an estimated population of 16,000 with 18 full-time staff including 16 paramedics. We transport patients to area hospitals in san marcos, new braunfels, kyle, and austin.

    $2,342,479 spent$697,847 earned by the program
    100% of program spending

The program described on its FY2024 Form 990. Program spending in total: $2,342,479.

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.

100 = 20172017 Revenue 100 ($1.7M) Expenses 100 ($1.7M) Net assets 100 ($1.4M)2018 Revenue 120 ($2.0M) Expenses 106 ($1.8M) Net assets 117 ($1.7M)2019 Revenue 111 ($1.9M) Expenses 109 ($1.8M) Net assets 120 ($1.7M)2020 Revenue 211 ($3.5M) Expenses 120 ($2.0M) Net assets 228 ($3.2M)2021 Revenue 138 ($2.3M) Expenses 131 ($2.2M) Net assets 237 ($3.4M)2022 Revenue 159 ($2.7M) Expenses 133 ($2.2M) Net assets 268 ($3.8M)2023 Revenue 173 ($2.9M) Expenses 149 ($2.5M) Net assets 298 ($4.2M)2024 Revenue 267 ($4.4M) Expenses 176 ($2.9M) Net assets 410 ($5.8M)2025 Revenue 265 ($4.4M) Expenses 178 ($3.0M) Net assets 519 ($7.4M)
'17'18'19'20'21'22'23'24'25
Revenue (265)Expenses (178)Net assets (519)

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2019 to 2020, from $1.9M to $3.6M (+94%).

$1.6M
$1.8M
$1.9M
$3.6M
$3.5M
$3.9M
$4.3M
$6.0M
$7.6M
'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: 2017 69% · 2018 61% · 2019 74% · 2020 43% · 2021 68% · 2022 72% · 2023 75% · 2024 81% · 2025 82%. Grants only. Government contracts and fees sit inside program revenue.

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 9 reported years ran a deficit.

$4k
’17
$242k
’18
$44k
’19
$1.5M
’20
$128k
’21
$453k
’22
$410k
’23
$1.5M
’24
$1.4M
’25
2.0
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.

'17'18'19'20'21'22'23'24'25
Listed657667101010
Joined·+1+5+4+0+5+3+1+0
No longer listed·23504010
03Who funds it

Who funds it, year by year

2018 → 2023: the base held at 1 funder, grant income fell $60k → $31.

3 of 4 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 23% 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 WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC’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

WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC leans on a few funders — its largest provides 77% of grant income and the top three 100%; half comes from just 1 funder.

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

77%
largest funder
100%
top three
~2
effective funders

Largest funder’s share by year: 2018 100% · 2019 100% · 2020 82% · 2021 100% · 2022 100% · 2023 100% — broadly stable.

“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

WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC draws 100% of its grant income from funders outside Texas, across 1 state in all.

CO

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

’18
’19
’20
Texas out of state home

Funder states come from each funder’s own filing. $33k 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

Organizations like WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS 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 Texas

Nationally

05Profile & governance

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

Where the money goes

79% of spending goes to programs.

Program 79%Management 21%Fundraising 0%

Governance

8
board members
88%
independent
✓Conflict-of-interest policy✓Whistleblower policy✓Document retention✓Board reviewed the 990✓Audited financials

Public support

99%

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 WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS 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 WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC?
WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC (Texas) receives grants from 4 organizations whose IRS filings report $145,083 to it, the largest being HARRY L WILLETT FOUNDATION C O BOYD RYAN ($112,000). 2 of them have funded it in more than one year.
How many funders does WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC have?
IRS filings report 4 organizations giving $145,083 in grants to WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC, 2 of which have funded it in more than one year.
Who is the largest funder of WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC?
HARRY L WILLETT FOUNDATION C O BOYD RYAN is the largest funder on record, with $112,000 in grants. The full list of funders is on this page.
How can an organization like WIMBERLEY EMERGENCY MEDICAL SERVICE SYSTEMS INC find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Texas. 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 Wimberley Emergency Medical Service Systems →

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 4 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