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US nonprofit · EIN 391707358 · Fond Du Lac, WIiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 391707358) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 30 June 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Astop Inc

Donations deductible
Revenue
$533k
year to 30 June 2025
Expenses
$478k
year to 30 June 2025
Total assets
$228k
Minus $703 liabilities
Net assets
$229k
assets less liabilities
Directors and trustees
8
2.2y av
Staff
10
10 volunteers
Left since last filing
0
no seats appear to have opened
Officers and senior staff
7
named in Part VII
How am I connected?

Astop Inc's network

8 people1 organisationi8 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (8). Violet dotted lines (1) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

8 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 8 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Andrea DowlandBoard Member2024
2 yrs
Caitlyn AussprungTreasurer2025
1 yr
Christi Ann LaudolffPresident Elect2025
1 yr
Crystal SeibelBoard Member2024
2 yrs
Jill CarlsonCompany secretary2025
1 yr
Madyln RamboBoard President2025
1 yr
Mary Ann SteffesBoard Member2024
2 yrs
Rhianna SchmidtBoard Member2022
4 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

7 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Anna KoepsellExuective Director2022
Ashley PuckerDirector2018
Carrie AhrensCompany secretary2022
Isabel HerreraPresident2022
Isabel WillistonExecutive Director2025
Nicole KrauseExecutive Disince 2018
Sara ChristensenVice President2022

Pay and hours

year to 30 June 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Isabel WillistonExecutive Director48$74k
Madyln RamboBoard President10$0
Caitlyn AussprungTreasurer10$0
Christi Ann LaudolffPresident Elect10$0
Jill CarlsonSecretary10$0
Andrea DowlandBoard Member10$0
Rhianna SchmidtBoard Member10$0
Crystal SeibelBoard Member10$0
Mary Ann SteffesBoard Member10$0

About

Legal name
Astop Inc
EIN
391707358
Address
21 S Marr St, Fond Du Lac, WI, 54935-4334
State
Wisconsin
Mission
Atop is a sexual assault victim service provider dedicated to offering treatment, outreach, prevention and advocacy; emphasizing hope and connection to self. (as filed on the Form 990)
Activity (NTEE)
S80Z Community improvement and capacity building
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Community Improvement & Capacity Building
Size band
4 (IRS master file code)
Formed
1992
Principal officer
Isabel Williston (as named on the Form 990)
IRS ruling date
1 May 1992
Status
Code 01 (unconditional exemption)
Form 990 filings on record
8, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥4years on the filingsRhianna Schmidt
≥2years on the filingsAndrea Dowland
≥2years on the filingsCrystal Seibel
≥2years on the filingsMary Ann Steffes

Latest return

year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.
Total assets
$228k
Total liabilities
Minus $703
Net assets or fund balances
$229k
Contributions and grants received
$525k
Program service revenue
$0
Employees
10
Volunteers
10

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$533k$478k$55k

As filed on the IRS Form 990. US dollars.