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Nonprofit · EIN 33-3433165

OEN - DAVENPORT PREP

Also known as DAVENPORT PREP

Tax-exempt · LITTLETON, CO 80120

Financials

$0$5482024
Revenue Expenses · by fiscal year end
Financials of OEN - DAVENPORT PREP by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$0$548-$548$0$548-$548
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$0
Investment income
$0
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Management and general (functional)
$548

Balance sheet and other

Total assets, start of year
$0
Total assets, end of year
$0
Total liabilities, end of year
$548
Net assets, end of year
-$548
Net assets without donor restrictions
-$548
Gross receipts
$0
Employees
0
Volunteers
0
Year formed
2025
State of legal domicile
IA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationFrom related orgs
Manuel Mattke Director and Presiden7901 Southpark Plz, Suite 206, Littleton, CO 80120
Trustee or director, Officer
1$0$1,999,014
Steve Christensen Secretary and GC7901 Southpark Plz, Suite 206, Littleton, CO 80120
Officer
0.5$0$315,554
Mark Simmons VP and Treasurer7901 Southpark Plz, Suite 206, Littleton, CO 80120
Officer
0.5$0$299,536

Address and contacts

Address (IRS master file)
7901 SOUTHPARK PLAZA, LITTLETON, CO 80120-5629
Principal officer (990 for 2024)
Manuel Mattke, 7901 Southpark Plaza Suite 206, Littleton, CO 80120
Signed the 990
Manuel Mattke, President
Phone
(303) 962-0025
Return prepared by
Steven L Christensen

Mission

Own and operate an Iowa charter school in Davenport, Iowa.

990 for the year ended June 30, 2025

Program accomplishments

  • Startup and filing fees related to organization and qualification as a 501(c)(3) public charity (school).0

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024Check at the IRS

IRS record

EIN
33-3433165
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
School
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
2025
Accounting year ends
June
Files
Form 990-N (e-Postcard)
Category (NTEE)
Education (B29)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$0$548$0IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 33-3433165).

Questions about OEN - DAVENPORT PREP

What is the EIN of OEN - DAVENPORT PREP?
The employer identification number (EIN) of OEN - DAVENPORT PREP is 33-3433165.
Is OEN - DAVENPORT PREP tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2025.
Are donations to OEN - DAVENPORT PREP tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does OEN - DAVENPORT PREP file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of OEN - DAVENPORT PREP due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did OEN - DAVENPORT PREP last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of OEN - DAVENPORT PREP?
The 990 for the year ended June 30, 2025 names Manuel Mattke.
Who are the officers and directors of OEN - DAVENPORT PREP?
The 990 for the year ended June 30, 2025 lists 3 people; 0 received compensation from the organization.
How much revenue does OEN - DAVENPORT PREP have?
On its 990 for the year ended June 30, 2025 it reported revenue of $0, expenses of $548 and total assets of $0 at year end.

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