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HOUSTON ARBORETUM & NATURE CENTER

EIN 74-1587880 HOUSTON, TX

Browse the largest nonprofits in Texas

Revenue 2023
$3,771,560
Expenses 2023
$3,309,214

Program services were 79.7% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
C410
Classification
2000
Street
4501 WOODWAY DR

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2023

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.

  • 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 $2,635,877

As filed on the 2023 return.

Officers and directors · 2023

As listed in Part VII of the 2023 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • Debbie Markey

    Executive Dir.

    Total calculated
    $151,443
    From this org
    $151,443
    From related orgs
    $0
    Other
    $0
    Hours/week
    40

    Schedule J breakdown matched by us

    Base
    $151,443
    Bonus
    not reported
    Other
    not reported
    Deferred
    not reported
    Nontaxable benefits
    not reported
    Filer's total
    $151,443

  • Sam Pyne

    President

    Total calculated
    $0
    Hours/week
    1

  • Cullen Geiselman Muse

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • Andrew Abendshein

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • Ruth Flournoy

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • Daniel David Hu

    Secretary

    Total calculated
    $0
    Hours/week
    1

  • Andrew Hull

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • Steve Newton

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • Ernest Pekmezaris

    Treasurer

    Total calculated
    $0
    Hours/week
    1

  • Allen Rustay

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • Janna Charlton Webber

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • Amy Woolf

    Vice President

    Total calculated
    $0
    Hours/week
    1

  • David Andrew

    Director

    Total calculated
    $0
    Hours/week
    1

  • Tensie Axton

    Director

    Total calculated
    $0
    Hours/week
    1

  • Jason Beauvais

    Director

    Total calculated
    $0
    Hours/week
    1

  • Jason Burt

    Director

    Total calculated
    $0
    Hours/week
    1

  • Nigel Curlet

    Director

    Total calculated
    $0
    Hours/week
    1

  • Catherine Elkins

    Director

    Total calculated
    $0
    Hours/week
    1

  • Leslie Griffin

    Director

    Total calculated
    $0
    Hours/week
    1

  • Frank Hauser

    Director

    Total calculated
    $0
    Hours/week
    1

  • Reese Henningsen

    Director

    Total calculated
    $0
    Hours/week
    1

  • Ethel Hutcheson

    Director

    Total calculated
    $0
    Hours/week
    1

  • Michael Jhin

    Director

    Total calculated
    $0
    Hours/week
    1

  • Jason Kinzel

    Director

    Total calculated
    $0
    Hours/week
    1

  • Harry Kirk

    Director

    Total calculated
    $0
    Hours/week
    1

The first 25 listed. Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

  • 2023
    Revenue
    $3,771,560
    Expenses
    $3,309,214
    Contributions
    $1,588,669
    Grants paid
    $0
  • 2022
    Revenue
    $3,643,197
    Expenses
    $3,169,086
    Contributions
    $1,612,717
    Grants paid
    $0

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $3,494,054
    Expenses
    $2,944,104
    Assets (EOY)
    $7,211,255

  • 2020 · 990

    Revenue
    $3,914,250
    Expenses
    $2,349,848
    Assets (EOY)
    $8,779,587

  • 2019 · 990

    Revenue
    $3,152,722
    Expenses
    $2,490,899
    Assets (EOY)
    $12,163,494

  • 2018 · 990

    Revenue
    $3,549,320
    Expenses
    $2,294,079
    Assets (EOY)
    $15,054,196

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 9 November 2026 and read 9 November 2026, for every organization at once. Returns through tax year 2023, the newest we have parsed for this organization.