Nonprofit · EIN 36-3774034
SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION
Also known as C-O SIEGFRIED J CLAUSSNER
Tax-exempt · ROSELLE, IL 60172
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $358,493 | $97,915 | $260,578 | $2,306,324 | $0 | $2,306,324 |
| December 31, 2024 | 990-PF | $102,405 | $96,178 | $6,227 | $2,211,964 | $0 | $2,211,964 |
| December 31, 2023 | 990-PF | $54,235 | $85,171 | -$30,936 | $1,836,978 | $0 | $1,836,978 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $35,000
- Dividends
- $37,565
- Interest
- $1,864
- Net gain from sales of assets
- $284,064
Expenses
- Grants and similar amounts paid
- $82,500
- Disbursements for charitable purposes
- $82,809
- Excise tax on investment income
- $4,388
Balance sheet and other
- Total assets, start of year
- $2,211,964
- Total assets, end of year
- $2,306,324
- Total liabilities, end of year
- $0
- Net assets, end of year
- $2,306,324
- Qualifying distributions
- $82,809
- Net investment income
- $330,449
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-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SIEGFRIED J CLAUSSNER 13320 BRIDGEFORD AVE, BONITA SPRINGS, FL 341353489 | Trustee | 10 | $0 |
| MARJORIE CLAUSSNER 13320 BRIDGEFORD AVE, BONITA SPRINGS, FL 341353489 | Trustee | 10 | $0 |
| MARK CLAUSSNER 17010 YAWL ROAD, CORNELIUS, NC 28031 | Trustee | 2 | $0 |
| MARTA DUFFY 6N773 OLD MILL COURT, ELGIN, IL 60124 | Trustee | 2 | $0 |
| GRETCHEN KROLL 3630 HAZELTON RD UNIT 1207, EDINA, MN 55435 | Trustee | 2 | $0 |
| HEIDI KOHUTH 335 WHITESTONE 47, FAYVETTEVILLE, NC 28312 | Trustee | 2 | $0 |
990-PF for the year ended December 31, 2024: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SIEGFRIED J CLAUSSNER 13320 BRIDGEFORD AVE, BONITA SPRINGS, FL 341353489 | Trustee | 10 | $0 |
| MARJORIE CLAUSSNER 13320 BRIDGEFORD AVE, BONITA SPRINGS, FL 341353489 | Trustee | 10 | $0 |
| MARK CLAUSSNER 17010 YAWL ROAD, CORNELIUS, NC 28031 | Trustee | 2 | $0 |
| MARTA DUFFY 6N773 OLD MILL COURT, ELGIN, IL 60124 | Trustee | 2 | $0 |
| GRETCHEN KROLL 3630 HAZELTON RD UNIT 1207, EDINA, MN 55435 | Trustee | 2 | $0 |
| HEIDI KOHUTH 335 WHITESTONE 47, FAYVETTEVILLE, NC 28312 | Trustee | 2 | $0 |
990-PF for the year ended December 31, 2023: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SIEGFRIED J CLAUSSNER 13320 BRIDGEFORD AVE, BONITA SPRINGS, FL 341353489 | Trustee | 10 | $0 |
| MARJORIE CLAUSSNER 13320 BRIDGEFORD AVE, BONITA SPRINGS, FL 341353489 | Trustee | 10 | $0 |
| MARK CLAUSSNER 17010 YAWL ROAD, CORNELIUS, NC 28031 | Trustee | 2 | $0 |
| MARTA DUFFY 6N773 OLD MILL COURT, ELGIN, IL 60124 | Trustee | 2 | $0 |
| GRETCHEN KROLL 3630 HAZELTON RD UNIT 1207, EDINA, MN 55435 | Trustee | 2 | $0 |
| HEIDI KOHUTH 335 WHITESTONE 47, FAYVETTEVILLE, NC 28312 | Trustee | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 20 PRESIDENTIAL DR, ROSELLE, IL 60172-3913
- In care of
- % SIEGFRIED J CLAUSSNER
- Signed the 990-PF
- SIEGFRIED CLAUSSNER, Trustee
- Phone
- (630) 980-5100
- Return prepared by
- Accounting & Tax Service of Viroqua LTD
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 36-3774034
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 1991
- Accounting year ends
- December
- Files
- Form 990-PF
- Assets (IRS master file)
- $2,306,324
- Income (IRS master file)
- $1,270,084
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $358,493 | $97,915 | $2,306,324 | XML |
| 990-PF | December 2024 | $102,405 | $96,178 | $2,211,964 | XML |
| 990-PF | December 2023 | $54,235 | $85,171 | $1,836,978 | XML |
| 990-PF | December 2022 | – | – | – | IRS |
| 990-PF | December 2021 | – | – | – | IRS |
| 990-PF | December 2020 | – | – | – | IRS |
| 990-PF | December 2018 | – | – | – | IRS |
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 36-3774034).
Questions about SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION
- What is the EIN of SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION?
- The employer identification number (EIN) of SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION is 36-3774034.
- Is SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1991.
- Are donations to SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 6 people; 0 received compensation from the organization.
- How much revenue does SIEGFRIED AND MARJORIE CLAUSSNER FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $358,493, expenses of $97,915 and total assets of $2,306,324 at year end.
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