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US nonprofit · EIN 881503608 · Florence, ORiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 881503608) - 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 time served.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. Not a statement that the organisation is recruiting.Principal officer IRS Form 990-N (e-Postcard) - principal officer named for tax year 2023.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Siuslaw Valley Charter School

Donations deductible
Revenue
$273k
year to 30 June 2025
Expenses
$106k
year to 30 June 2025
Total assets
$343k
$5k liabilities
Net assets
$338k
assets less liabilities
Directors and trustees
5
2.4 years on average
Staff
0
11 volunteers
Left since last filing
0
no seats appear to have opened
Officers and senior staff
1
named in Part VII
How am I connected?

Siuslaw Valley Charter School's network

5 peoplei5 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (5). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

5 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.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 5 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Donna HeinenCompany secretary2024
2 yrs
Heather Hammon StaffordVice Preside2024
2 yrs
Kay KingPresident2024
2 yrs
Larry MartindaleDirector2024
2 yrs
Maurice C TrentTeasurer2024
2 yrs
Under 5 years5 to 6 years6 years or more

Officers and senior leadership

1 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Arturo RuelasCEOsince 2024

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
Arturo RuelasCEO50$0
Kay KingPresident60$0
Heather Hammon StaffordVice Preside20$0
Donna HeinenSecretary12$0
Maurice C TrentTeasurer60$0
Larry MartindaleDirector16$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Siuslaw Valley Charter School
EIN
881503608
Address
625 Hwy 101 Box 1035, Florence, OR, 97439-7634
State
Oregon
Mission
Whitmore academy is a tuition-free public charter school in florence, or. Students from the siuslaw school district and surrounding areas (within 50 miles) are eligible to attend, with seats filled through a lottery system. Our mission is to develop students in mind and character through a classical education that emphasizes the principles of virtuous living, traditional learning, and civic... (as filed on the Form 990)
Activity (NTEE)
B24 Education
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Education
Size band
4 (IRS master file code)
Formed
2022
Principal officer
Maurice C Trent (as named on the Form 990)
IRS ruling date
1 October 2022
Status
Code 01 (unconditional exemption)
Form 990 filings on record
2, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥2years on the filingsDonna Heinen
≥2years on the filingsHeather Hammon Stafford
≥2years on the filingsKay King
≥2years on the filingsLarry Martindale

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
$343k
Total liabilities
$5k
Net assets or fund balances
$338k
Contributions and grants received
$273k
Program service revenue
$0
Employees
0
Volunteers
11

Filed finances

2 yearsiTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$221k$66k$155k
2024$273k$106k$167k

As filed on the IRS Form 990. US dollars.

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
Siuslaw Valley Charter School likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: Oregon Secretary of State, active business entities (data.oregon.gov tckn-sxa6). Licence not stated. Data last fetched 18 October 2026.
State
Oregon
Entity type
nonprofit corporation
Status
Active
Formed
30 March 2022
Registered agent
Maurice Chuck Trent (city and state not held)