Wisconsin · Nonprofit
TRI-STATE AMBULANCE INC
TRI-STATE AMBULANCE INC (Wisconsin) receives grants from 1 organization whose IRS filings report $223 to it, the largest being AMAZONSMILE FOUNDATION ($223). 1 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $14M
- Funders on record
- 1
- Grants received
- $223
- Net assets
- $10M
What Tri-State Ambulance Inc does
Mission
The mission of tri-state ambulance, inc. Is to be a primary provider of pre-hospital emergency care and transportation in the tri-state region. The company utilizes a team environment where all members work toward the shared goal of providing the highest level of patient care to the largest number of people in an efficient manner. With 38 experienced paramedics, 54 emts, and 14 ambulances we continuously set the standard for emergency medical services. Since 1970, tri-state ambulance has served as the sole 911 advance life support provider for the region covering nearly 2,200 square miles and serving a population of approximately 150,000. Tristate ambulance offers its residents and visitors unsurpassed pre-hospital care.
As stated on its FY2025 Form 990.
Program
Tri-state ambulance has proudly served southwest wisconsin, southeast minnesota, and northeast iowa since 1970, with the most advanced pre-hospital patient care available to thousands of patients every year. Primary emergency 911 response as well as emergency and non-emergency interfacility transport and intercept services are provided 24 hours a day. Another measure of tri-state ambulances' success is described in a recent comprehensive study analyzing the percentage of patients who were discharged from a hospital after suffering a cardiac arrest in which the event was witnessed and the victim was in a shockable heart rhythm (where a defibrillator could be used). In 2025, tri-state ambulance had 13,067 transports, 110 standbys, 4,068 non-transports, and 17,135 total calls. Tri-state ambulance remained accredited by caas, and a successful partnership with local fire department.
$9,600,245 spentof which $38,513 as grants$13,100,943 earned by the program100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $9,600,245.
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.
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 $8.1M to $11M (+35%).
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.
Government-grant reliance: 2017 0% · 2018 0% · 2019 0% · 2020 4% · 2021 2% · 2022 2% · 2023 1% · 2024 0% · 2025 4%. Grants only. Government contracts and fees sit inside program revenue.
4% of TRI-STATE AMBULANCE INC’s revenue is contributions — about as donation-reliant as the typical peer (7% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 9 reported years ran a deficit.
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
Scott Rathgaber Md
CEO
As listed on its FY2025 Form 990.
Who funds it, year by year
2020 → 2023: the base held at 1 funder, grant income fell $53 → $44.
1 of 1 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 100% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $113k from one payer (the payer shares this organization's board, largest Gundersen Lutheran Medical Foundation Inc). These are real filings, and they are not money TRI-STATE AMBULANCE INC raised.
From the IRS filings of TRI-STATE AMBULANCE 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.
Where its funders are
100% of TRI-STATE AMBULANCE INC's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Too little is directly attributable to place on a map.
Funder states come from each funder’s own filing. $223 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.
Against its field
TRI-STATE AMBULANCE INC runs a healthier operating margin than three-quarters of the 2,843 health nonprofits its size.
this organization peer median middle 50% of peers· 2,843 health nonprofits $10M–$100M, FY2025
Organizations like TRI-STATE AMBULANCE 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
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
86% of spending goes to programs.
Governance
Footprint & structure
Files a return copy in 1 state
Part of a family of 32 related entities
- Bellin Gundersen Health System Inc · exempt
- Gundersen Lutheran Health System Inc · exempt
- Gundersen Lutheran Medical Center Inc · exempt
- Gundersen Clinic Ltd · exempt
- Gundersen Lutheran Administrative Services Inc · exempt
Screen this organization
A dated, signed PDF of the compliance screen for TRI-STATE AMBULANCE 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.
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 TRI-STATE AMBULANCE INC?
- TRI-STATE AMBULANCE INC (Wisconsin) receives grants from 1 organization whose IRS filings report $223 to it, the largest being AMAZONSMILE FOUNDATION ($223). 1 of them have funded it in more than one year, and 100% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does TRI-STATE AMBULANCE INC have?
- IRS filings report 1 organization giving $223 in grants to TRI-STATE AMBULANCE INC, 1 of which have funded it in more than one year.
- Who is the largest funder of TRI-STATE AMBULANCE INC?
- AMAZONSMILE FOUNDATION is the largest funder on record, with $223 in grants. The full list of funders is on this page.
- How can an organization like TRI-STATE AMBULANCE 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.
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 1 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