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Governance Register
US nonprofit · EIN 473051483 · Austin, TXiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 473051483) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 30 September 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Zilker Botanical Garden Conservancy NON-Profit Corporation's network

20 people7 organisationsi20 people and 7 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (20). Violet dotted lines (8) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

20 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 20 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Leah Romero ChairChair2020
6 yrs
Abby FrankCouncil2024
2 yrs
Amy VoorhesBoard Member2019
7 yrs
August HarrisTreasurer2025
1 yr
Autumn KeiserBoard Member2024
2 yrs
Cassie GowanBoard Member2020
6 yrs
Chuck FosterBoard Member2024
2 yrs
Curt FinchBoard Member2020
6 yrs
Ellen SingletonAagc Rep2025
1 yr
HAL SandersCouncil2019
7 yrs
Jennifer Poteat (also filed as Jen Poteat)Board Member2019
7 yrs
Kate TolliverCompany secretary2024
2 yrs
Margaret GaltonBoard Member2020
6 yrs
Michael GarciaCompany secretary2025
1 yr
Rachel RaiseBoard Member2020
6 yrs
Robert RamosBoard Member2024
2 yrs
Sally DicksonAagc Rep2021
5 yrs
Stephanie HunterVice Chair2024
2 yrs
Vijay GanjuBoard Member2024
2 yrs
Wilda CampbellBoard Member2023
3 yrs
Under 5 years5 to 6 years6 years or moreShow all 20 →

Officers and senior leadership

2 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.
NameTitle as filedOn the filings
Holly HawkExecutive Director2025
Jeff PavlatInterim Executive Director2020

Pay and hours

year to 30 September 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Holly HawkExecutive Director2$125k
Abby FrankCouncil2$0
August HarrisTreasurer10$0
Ellen SingletonAagc Rep2$0
Hal SandersCouncil10$0
Kate TolliverSecretary5$0
Leah RomeroChair10$0
Michael GarciaSecretary5$0
Sally DicksonAagc Rep2$0
Stephanie HunterVice Chair2$0
Amy VoorhesBoard Member2$0
Autumn KeiserBoard Member2$0
Cassie GowanBoard Member2$0
Chuck FosterBoard Member2$0
Curt FinchBoard Member2$0
Jen PoteatBoard Member2$0
Margaret GaltonBoard Member2$0
Rachel RaiseBoard Member2$0
Robert RamosBoard Member2$0
Vijay GanjuBoard Member2$0
Wilda CampbellBoard Member2$0

About

Legal name
Zilker Botanical Garden Conservancy Non-Profit Corporation
EIN
473051483
Address
2220 Barton Springs Rd, Austin, TX, 78746-5737
State
Texas
Mission
The mission of the zilker botanical garden conservancy is to cultivate community and foster life-long learning that inspires an appreciation of the botanical world. (as filed on the Form 990)
Activity (NTEE)
C40 Environment
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Environment
Size band
5 (IRS master file code)
Formed
2015
Principal officer
Heather de la Garza (as named on the Form 990)
IRS ruling date
1 June 2015
Status
Code 01 (unconditional exemption)
Form 990 filings on record
7, latest 2025
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥7years on the filingsAmy Voorhes
≥7years on the filingsHAL Sanders
≥7years on the filingsJennifer Poteat
≥6years on the filingsLeah Romero

Latest return

year to 30 September 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 September 2025. US dollars, as filed.
Total assets
$626k
Total liabilities
$240k
Net assets or fund balances
$386k
Contributions and grants received
$115k
Program service revenue
$579k
Grants and similar paid out
$2k
Employees
29
Volunteers
800

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2023$990k$1.1mDeficit $109k

As filed on the IRS Form 990. US dollars.