Skip to content

Texas · Public charity

Houston Zoo Inc

Mission: Connect communities with animals, inspiring action to save wildlife. Vision: Be a leader in the global movement to save wildlife. (Continued on Schedule O) Houston Zoo, Inc. (HZI) strives to be a zoo that practices exemplary animal care, delivers an outstanding guest experience, creates a workplace that instills respect and…

$2.8M
Granted FY2024(still arriving)
23
Itemized grants FY2024
20
Organizations funded FY2023
35%
First-time grantees FY2023
Read the full brief
Itemized, FY2024
$1.0M
The rest is grants the schedule does not break out
Median grant, FY2024
$20,000
Largest grant, FY2024
$341,112
Organizations funded a year
9 to 23
FY2017 to FY2023
States reached, FY2024
10
Total assets, FY2024
$381M

How open it is to new grantees

In FY2023, 35% of the organizations Houston Zoo Inc funded were first-time grantees, receiving 15% of its grant dollars.

New vs renewed · share of each year

In FY2023, 85% of grant dollars renewed an existing relationship; $167k went to new ones.

50%100%’18’19’20’21’22’23
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’20’21’22’23
AnimalsEnvironmentYouth DevelopmentPhilanthropyArts & CultureOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2024still arriving23$1.0M17%
FY202320$1.1M35%
FY202214$1.3M43%
FY20219$845k0%
FY202013$928k0%
FY201921$1.4M24%
FY201818$1.3M11%
FY201723$1.3Mn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Animals$4.9MHealth$3.1MEnvironment$514kEducation$246kFood & Nutrition$144kInternational$85kYouth Development$76kArts & Culture$64kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
MT
MN
IL
WI
NY
OR
OH
CA
CO
VA
MD
AZ
TN
NC
DC
OK
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2017 to FY2024, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Baylor College of Medicine$3,001,92380%
MGVP INC Mountain Gorilla Veterinary Project$915,000812%
Wildlife Conservation Network Inc$857,59971%
Ecology Project International$430,500612%
George Miksch Sutton Avian Research Center Inc$331,308218%
Fossil Rim Wildlife Center Inc$331,30733%
University of California Davis$324,7508n/a
Americans for Oxford Inc$299,91740%
Wildlife Guardians$250,06555%
International Crane Foundation Inc$242,18661%
Show all 47 grantees
All grantees of Houston Zoo Inc by total granted
GranteeTotal grantedYearsShare of their budget
Baylor College of Medicine$3,001,92380%
MGVP INC Mountain Gorilla Veterinary Project$915,000812%
Wildlife Conservation Network Inc$857,59971%
Ecology Project International$430,500612%
George Miksch Sutton Avian Research Center Inc$331,308218%
Fossil Rim Wildlife Center Inc$331,30733%
University of California Davis$324,7508n/a
Americans for Oxford Inc$299,91740%
Wildlife Guardians$250,06555%
International Crane Foundation Inc$242,18661%
Dian Fossey Gorilla Fund International Inc$240,00061%
Smithsonian Institution$170,00030%
American Association of Zoological Parks and Aquariums Inc$140,00031%
The Fort Worth Zoological Association$135,63820%
International Elephant Foundation$130,00073%
Wildlife Conservation Global Inc$125,00045%
Texas A&M Agrilife Research$113,6082n/a
Gorilla Rehabilitation Conservation Education (Grace) Center Inc$109,50054%
Global Conservation Network$82,00081%
The International Rhino Foundation$80,00041%
Telonics Inc$76,7832n/a
Boy Scouts of America #564 Capitol Area Council$75,98821%
Johns Hopkins University$69,16610%
Save Giraffes Now$62,30026%
Dallas Zoological Society$54,45620%
Texas State University$51,4403n/a
Rewild$46,00030%
Texas Conservation Alliance$45,00022%
Bat Conservation International$40,00011%
North Carolina Zoological Society Inc$40,00020%
Lincoln Park Zoological Society$35,00020%
Friends of Laguna Atascosa National Wildlife Refuge$30,000128%
The Turtle Survival Alliance Foundation$30,00011%
Minnesota Zoo Foundation$30,00030%
Maralliance$23,15013%
Knoxville Zoological Gardens Inc$20,00010%
American Bird Conservancy$20,00010%
Jane Goodall Institute for Wildlife Research Education and Conservation$20,00020%
Pines and Prairies Land Trust$15,552123%
The Four Corners Institute$13,750114%
White Oak Conservation Foundation Inc$11,06911%
William Marsh Rice University$10,00010%
Port Aransas Tourism Bureau and Chamber of Commerce$10,00010%
Social and Environmental Entrepreneurs (See) Inc$10,00010%
Wildtracks USA$8,3601n/a
Columbus Zoological Park Association$7,00010%
National Mall and Memorial Parks$5,1501n/a

Where it is load-bearing

Houston Zoo Inc supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 41 largest grantees; load-bearing ones sit top left.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBaylor College of Medicine: $3,001,923 over 8y, 0.0% of budgetMGVP INC Mountain Gorilla Veterinary Project: $915,000 over 8y, 12% of budgetWildlife Conservation Network Inc: $857,599 over 7y, 1.2% of budgetEcology Project International: $430,500 over 6y, 12% of budgetGeorge Miksch Sutton Avian Research Center Inc: $331,308 over 2y, 18% of budgetFossil Rim Wildlife Center Inc: $331,307 over 3y, 2.5% of budgetAmericans for Oxford Inc: $299,917 over 4y, 0.3% of budgetWildlife Guardians: $250,065 over 5y, 5.4% of budgetInternational Crane Foundation Inc: $242,186 over 6y, 0.6% of budgetDian Fossey Gorilla Fund International Inc: $240,000 over 6y, 0.9% of budgetSmithsonian Institution: $170,000 over 3y, 0.0% of budgetAmerican Association of Zoological Parks and Aquariums Inc: $140,000 over 3y, 0.7% of budgetThe Fort Worth Zoological Association: $135,638 over 2y, 0.1% of budgetInternational Elephant Foundation: $130,000 over 7y, 2.6% of budgetWildlife Conservation Global Inc: $125,000 over 4y, 4.7% of budgetGorilla Rehabilitation Conservation Education (Grace) Center Inc: $109,500 over 5y, 4.3% of budgetGlobal Conservation Network: $82,000 over 8y, 1.5% of budgetThe International Rhino Foundation: $80,000 over 4y, 1.3% of budgetBoy Scouts of America #564 Capitol Area Council: $75,988 over 2y, 1.2% of budgetJohns Hopkins University: $69,166 over 1y, 0.0% of budgetSave Giraffes Now: $62,300 over 2y, 6.1% of budgetDallas Zoological Society: $54,456 over 2y, 0.4% of budgetRewild: $46,000 over 3y, 0.2% of budgetTexas Conservation Alliance: $45,000 over 2y, 2.4% of budgetBat Conservation International: $40,000 over 1y, 0.6% of budgetNorth Carolina Zoological Society Inc: $40,000 over 2y, 0.1% of budgetLincoln Park Zoological Society: $35,000 over 2y, 0.1% of budgetFriends of Laguna Atascosa National Wildlife Refuge: $30,000 over 1y, 28% of budgetThe Turtle Survival Alliance Foundation: $30,000 over 1y, 0.9% of budgetMinnesota Zoo Foundation: $30,000 over 3y, 0.3% of budgetMaralliance: $23,150 over 1y, 2.6% of budgetKnoxville Zoological Gardens Inc: $20,000 over 1y, 0.1% of budgetAmerican Bird Conservancy: $20,000 over 1y, 0.1% of budgetJane Goodall Institute for Wildlife Research Education and Conservation: $20,000 over 2y, 0.1% of budgetPines and Prairies Land Trust: $15,552 over 1y, 23% of budgetThe Four Corners Institute: $13,750 over 1y, 14% of budgetWhite Oak Conservation Foundation Inc: $11,069 over 1y, 0.9% of budgetWilliam Marsh Rice University: $10,000 over 1y, 0.0% of budgetPort Aransas Tourism Bureau and Chamber of Commerce: $10,000 over 1y, 0.4% of budgetSocial and Environmental Entrepreneurs (See) Inc: $10,000 over 1y, 0.0% of budgetColumbus Zoological Park Association: $7,000 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 41.

Nonprofits that may fit its grantmaking

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

Dallas Zoo Management IncTX24.2× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Dallas Zoo Management Inc · Columbus Zoological Park Association · Jacksonville Zoological Society Inc · Dallas Zoological Society · Utah Zoological Society · Nashville Zoo Inc · Detroit Zoological Society · Zoological Society of San Diego · National Fish and Wildlife Foundation · National Geographic Society · Riverbanks Society · The Caldwell Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare Houston Zoo Inc with peer funders

About Houston Zoo Inc

How much does Houston Zoo Inc give?
Houston Zoo Inc reported 23 itemized grants totaling $1,048,215, out of $2,790,863 in total grant expense reported on the return in its FY2024 IRS filing. It funded between 9 and 23 organizations a year over FY2017 to FY2023.
What does Houston Zoo Inc fund?
By grant dollars over FY2017 to FY2024, its largest causes are Animals (54%), Health (33%), Environment (6%).
Who are Houston Zoo Inc's largest grantees?
By total granted over FY2017 to FY2024: Baylor College of Medicine ($3.0M), MGVP INC Mountain Gorilla Veterinary Project ($915k), Wildlife Conservation Network Inc ($858k).
Does Houston Zoo Inc fund new organizations?
In FY2023, 35% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Houston Zoo Inc?
Its strongest co-funders, measured against what their size predicts, include Dallas Zoo Management Inc, Columbus Zoological Park Association, Jacksonville Zoological Society Inc.
Where is Houston Zoo Inc based?
Houston Zoo Inc is based in TX.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 47 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Houston Zoo’s filings →

More from the funding graph