Nonprofit · EIN 45-2591325
LEIDEN CONSERVATION FOUNDATION
Tax-exempt · CHAGRIN FALLS, OH 44022
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $693,012 | $606,781 | $86,231 | $331,502 | $0 | $331,502 |
| December 31, 2024 | 990-PF | $1,061,971 | $713,371 | $348,600 | $512,884 | $0 | $512,884 |
| December 31, 2023 | 990-PF | $552,579 | $438,471 | $114,108 | $164,284 | $0 | $164,284 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $400,374
- Dividends
- $12,366
- Interest
- $1,744
- Net gain from sales of assets
- $272,238
- Other income
- $6,290
Expenses
- Grants and similar amounts paid
- $585,571
- Disbursements for charitable purposes
- $600,706
- Excise tax on investment income
- $3,970
Balance sheet and other
- Total assets, start of year
- $512,884
- Total assets, end of year
- $331,502
- Total liabilities, end of year
- $0
- Net assets, end of year
- $331,502
- Fair market value of assets
- $331,502
- Qualifying distributions
- $600,706
- Net investment income
- $286,348
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 |
|---|---|---|---|
| THOMAS M LEIDEN 3150 TOPPING LANE, HUNTING VALLEY, OH 44022 | PRESIDENT | 1 | $0 |
| KATHLEEN A LEIDEN 3150 TOPPING LANE, HUNTING VALLEY, OH 44022 | SECRETARY/TR | 1 | $0 |
990-PF for the year ended December 31, 2024: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| THOMAS M LEIDEN 3150 TOPPING LANE, HUNTING VALLEY, OH 44022 | PRESIDENT | 1 | $0 |
| KATHLEEN A LEIDEN 3150 TOPPING LANE, HUNTING VALLEY, OH 44022 | SECRETARY/TREASURER | 1 | $0 |
990-PF for the year ended December 31, 2023: 2 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| THOMAS LEIDEN 3150 TOPPING LANE, HUNTING VALLEY, OH 44022 | PRESIDENT | 1 | $0 |
| KATHLEEN LEIDEN 3150 TOPPING LANE, HUNTING VALLEY, OH 44022 | SECRETARY/TREASURER | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 3150 TOPPING LN, CHAGRIN FALLS, OH 44022-6649
- Signed the 990-PF
- THOMAS M LEIDEN, PRESIDENT
- Phone
- (216) 831-9667
- Return prepared by
- CM WEALTH ADVISORS
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
- 45-2591325
- 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
- 2011
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T22)
- Assets (IRS master file)
- $331,502
- Income (IRS master file)
- $1,046,773
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $693,012 | $606,781 | $331,502 | IRS |
| 990-PF | December 2024 | $1,061,971 | $713,371 | $512,884 | XML |
| 990-PF | December 2023 | $552,579 | $438,471 | $164,284 | 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 45-2591325).
Questions about LEIDEN CONSERVATION FOUNDATION
- What is the EIN of LEIDEN CONSERVATION FOUNDATION?
- The employer identification number (EIN) of LEIDEN CONSERVATION FOUNDATION is 45-2591325.
- Is LEIDEN CONSERVATION FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2011.
- Are donations to LEIDEN CONSERVATION FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does LEIDEN CONSERVATION FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of LEIDEN CONSERVATION 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 LEIDEN CONSERVATION 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 LEIDEN CONSERVATION FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 2 people; 0 received compensation from the organization.
- How much revenue does LEIDEN CONSERVATION FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $693,012, expenses of $606,781 and total assets of $331,502 at year end.
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