Nonprofit · EIN 74-1587880
HOUSTON ARBORETUM & NATURE CENTER
Tax-exempt · HOUSTON, TX 77024
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $4,435,058 | $3,618,974 | $816,084 | $8,213,733 | $642,992 | $7,570,741 |
| June 30, 2024 | 990 | $3,771,560 | $3,309,214 | $462,346 | $7,292,553 | $537,896 | $6,754,657 |
| June 30, 2023 | 990 | $3,643,197 | $3,169,086 | $474,111 | $6,680,326 | $388,015 | $6,292,311 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $2,185,578
- Membership dues
- $181,078
- Program service revenue
- $769,777
- Investment income
- $531,632
- Net rental income
- $215,366
- Net income from fundraising events
- $392,624
- Net income from sales of inventory
- -$34,366
- Other revenue
- $948,071
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $156,315
- Other salaries and wages
- $1,702,606
- Salaries, compensation and benefits (total)
- $2,357,459
- Professional fundraising fees
- $0
- Accounting fees
- $78,014
- Occupancy
- $142,756
- Travel
- $27,020
- Depreciation
- $140,267
- Program services (functional)
- $2,938,495
- Management and general (functional)
- $492,069
- Fundraising (functional)
- $188,410
Balance sheet and other
- Total assets, start of year
- $7,292,553
- Total assets, end of year
- $8,213,733
- Total liabilities, end of year
- $642,992
- Net assets, end of year
- $7,570,741
- Land, buildings and equipment
- $1,634,006
- Net assets without donor restrictions
- $6,232,168
- Net assets with donor restrictions
- $1,338,573
- Gross receipts
- $4,730,090
- Employees
- 30
- Volunteers
- 250
- Year formed
- 1967
- State of legal domicile
- TX
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.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Debbie Markey | Executive Dir. Officer | 40 | $156,315 |
| Sam Pyne | President Trustee or director, Officer | 1 | $0 |
| Andrew Abendshein | Vice President Trustee or director, Officer | 1 | $0 |
| Ruth Flournoy | Vice President Trustee or director, Officer | 1 | $0 |
| Daniel David Hu | Secretary Trustee or director, Officer | 1 | $0 |
| Andrew Hull | Vice President Trustee or director, Officer | 1 | $0 |
| Steve Newton | Vice President Trustee or director, Officer | 1 | $0 |
| Tim Neuhaus | Treasurer Trustee or director, Officer | 1 | $0 |
| Allen Rustay | Vice President Trustee or director, Officer | 1 | $0 |
| Janna Charlton Webber | Vice President Trustee or director, Officer | 1 | $0 |
| Amy Woolf | Vice President Trustee or director, Officer | 1 | $0 |
| David Andrew | Director Trustee or director | 1 | $0 |
| Jason Beauvais | Director Trustee or director | 1 | $0 |
| Jason Burt | Director Trustee or director | 1 | $0 |
| Catherine Elkins | Director Trustee or director | 1 | $0 |
13 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Leslie Griffin | Director Trustee or director | 1 | $0 |
| Reese Henningsen | Director Trustee or director | 1 | $0 |
| Ethel Hutcheson | Director Trustee or director | 1 | $0 |
| Harry Kirk | Director Trustee or director | 1 | $0 |
| James Melchers | Director Trustee or director | 1 | $0 |
| Ernest Pekmezaris | Director Trustee or director | 1 | $0 |
| Chris Odell | Director Trustee or director | 1 | $0 |
| Elisa Pye | Director Trustee or director | 1 | $0 |
| Sandy Shurin | Director Trustee or director | 1 | $0 |
| Louis Weisberg | Director Trustee or director | 1 | $0 |
| Andrea White | Director Trustee or director | 1 | $0 |
| Debbie Yee | Director Trustee or director | 1 | $0 |
| Barbara Bushong | Director Trustee or director | 1 | $0 |
990 for the year ended June 30, 2024: 35 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Debbie Markey | Executive Dir. Officer | 40 | $151,443 |
| Sam Pyne | President Trustee or director, Officer | 1 | $0 |
| Cullen Geiselman Muse | Vice President Trustee or director, Officer | 1 | $0 |
| Andrew Abendshein | Vice President Trustee or director, Officer | 1 | $0 |
| Ruth Flournoy | Vice President Trustee or director, Officer | 1 | $0 |
| Daniel David Hu | Secretary Trustee or director, Officer | 1 | $0 |
| Andrew Hull | Vice President Trustee or director, Officer | 1 | $0 |
| Steve Newton | Vice President Trustee or director, Officer | 1 | $0 |
| Ernest Pekmezaris | Treasurer Trustee or director, Officer | 1 | $0 |
| Allen Rustay | Vice President Trustee or director, Officer | 1 | $0 |
| Janna Charlton Webber | Vice President Trustee or director, Officer | 1 | $0 |
| Amy Woolf | Vice President Trustee or director, Officer | 1 | $0 |
| David Andrew | Director Trustee or director | 1 | $0 |
| Tensie Axton | Director Trustee or director | 1 | $0 |
| Jason Beauvais | Director Trustee or director | 1 | $0 |
| Jason Burt | Director Trustee or director | 1 | $0 |
| Nigel Curlet | Director Trustee or director | 1 | $0 |
| Catherine Elkins | Director Trustee or director | 1 | $0 |
| Leslie Griffin | Director Trustee or director | 1 | $0 |
| Frank Hauser | Director Trustee or director | 1 | $0 |
| Reese Henningsen | Director Trustee or director | 1 | $0 |
| Ethel Hutcheson | Director Trustee or director | 1 | $0 |
| Michael Jhin | Director Trustee or director | 1 | $0 |
| Jason Kinzel | Director Trustee or director | 1 | $0 |
| Harry Kirk | Director Trustee or director | 1 | $0 |
| Greg Meece | Director Trustee or director | 1 | $0 |
| James Melchers | Director Trustee or director | 1 | $0 |
| Tim Neuhaus | Director Trustee or director | 1 | $0 |
| Chris Odell | Director Trustee or director | 1 | $0 |
| Mosby Perrow | Director Trustee or director | 1 | $0 |
| Elisa Pye | Director Trustee or director | 1 | $0 |
| Sandy Shurin | Director Trustee or director | 1 | $0 |
| Louis Weisberg | Director Trustee or director | 1 | $0 |
| Andrea White | Director Trustee or director | 1 | $0 |
| Debbie Yee | Director Trustee or director | 1 | $0 |
990 for the year ended June 30, 2023: 37 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Debbie Markey | Executive Dir. Officer | 40 | $143,407 |
| Keely Everett | Development Director | 40 | $123,449 |
| Stephen Benigno | Conservation Director | 40 | $117,629 |
| Leslie Fertitta | Director Trustee or director | 1 | $0 |
| Cullen Geiselman Muse | Director Trustee or director, Officer | 1 | $0 |
| Daniel David Hu | Secretary Trustee or director, Officer | 1 | $0 |
| Ernest Pekmezaris | Treasurer Trustee or director, Officer | 1 | $0 |
| Sam Pyne | President Trustee or director, Officer | 1 | $0 |
| Allen Rustay | Vice President Trustee or director, Officer | 1 | $0 |
| Andrew Abendshein | Vice President Trustee or director, Officer | 1 | $0 |
| Catherine Elkins | Director Trustee or director | 1 | $0 |
| Ruth Flournoy | Vice President Trustee or director, Officer | 1 | $0 |
| Frank Hauser | Director Trustee or director | 1 | $0 |
| Andrew Hull | Vice President Trustee or director, Officer | 1 | $0 |
| Greg Meece | Director Trustee or director | 1 | $0 |
| Mosby Perrow | Director Trustee or director | 1 | $0 |
| Janna Charlton Webber | Vice President Trustee or director, Officer | 1 | $0 |
| Tensie Axton | Director Trustee or director | 1 | $0 |
| Ethel Hutcheson | Director Trustee or director | 1 | $0 |
| Reese Henningsen | Director Trustee or director | 1 | $0 |
| Elisa Stude Pye | Director Trustee or director | 1 | $0 |
| Amy Woolf | Vice President Trustee or director, Officer | 1 | $0 |
| David Andrew | Director Trustee or director | 1 | $0 |
| Michael Jhin | Director Trustee or director | 1 | $0 |
| Harry Kirk | Director Trustee or director | 1 | $0 |
| James Melchers | Director Trustee or director | 1 | $0 |
| Tim Neuhaus | Director Trustee or director | 1 | $0 |
| Steve Newton | Vice President Trustee or director, Officer | 1 | $0 |
| Chris Odell | Director Trustee or director | 1 | $0 |
| Louis Weisberg | Director Trustee or director | 1 | $0 |
| Debbie Yee | Director Trustee or director | 1 | $0 |
| Jason Beauvais | Director Trustee or director | 1 | $0 |
| Jason Burt | Director Trustee or director | 1 | $0 |
| Nigel Curlet | Director Trustee or director | 1 | $0 |
| Jason Kinzel | Director Trustee or director | 1 | $0 |
| Andrea White | Director Trustee or director | 1 | $0 |
| Sandy Shurin | Director Trustee or director | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 4501 WOODWAY DR, HOUSTON, TX 77024-7708
- Principal officer (990 for 2024)
- Debbie Markey, 4501 Woodway Dr, Houston, TX 770247708
- Signed the 990
- Debbie Markey, Executive Director
- Phone
- (713) 681-8433
- Website
- www.houstonarboretum.org
- Return prepared by
- Lee Ann Kroon
Mission
The mission of the Houston Arboretum & Nature Center is to provide education about the natural environment to people of all ages and to protect and enhance the Arboretum as a haven and sanctuary for native plants and animals.
Program accomplishments
- Educational programs for people of all ages on a variety of topics, singly and in series, during school breaks and on week-ends. Through advanced adult education Houston Arboretum also offers educational programs for related fields, professional groups and area naturalists and conservationists. These programs serve as a gathering agent for professional organizations for education meetings, seminars and workshops.Expenses $2,938,495 · revenue $769,777
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 74-1587880
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1967
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C410)
- Assets (IRS master file)
- $8,213,733
- Income (IRS master file)
- $4,730,090
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $4,435,058 | $3,618,974 | $8,213,733 | IRS |
| 990 | June 2024 | $3,771,560 | $3,309,214 | $7,292,553 | IRS |
| 990 | June 2023 | $3,643,197 | $3,169,086 | $6,680,326 | XML |
| 990 | June 2022 | $3,494,054 | $2,944,104 | $7,211,255 | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990 | June 2020 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | 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 74-1587880).
Questions about HOUSTON ARBORETUM & NATURE CENTER
- What is the EIN of HOUSTON ARBORETUM & NATURE CENTER?
- The employer identification number (EIN) of HOUSTON ARBORETUM & NATURE CENTER is 74-1587880.
- Is HOUSTON ARBORETUM & NATURE CENTER tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1967.
- Are donations to HOUSTON ARBORETUM & NATURE CENTER tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does HOUSTON ARBORETUM & NATURE CENTER file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of HOUSTON ARBORETUM & NATURE CENTER 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 HOUSTON ARBORETUM & NATURE CENTER 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 HOUSTON ARBORETUM & NATURE CENTER?
- The 990 for the year ended June 30, 2025 names Debbie Markey.
- Who are the officers and directors of HOUSTON ARBORETUM & NATURE CENTER?
- The 990 for the year ended June 30, 2025 lists 28 people; 1 received compensation from the organization, the highest $156,315 (Debbie Markey, Executive Dir.).
- How much revenue does HOUSTON ARBORETUM & NATURE CENTER have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $4,435,058, expenses of $3,618,974 and total assets of $8,213,733 at year end.
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